Selection and Application Guide - Siemens · PDF fileSelection and Application Guide ... 3-wire, 3-phase 4-wire or 3-phase 4-wire ... with optional isolated ground which is

Selection andApplication Guide

SENTRON®

Sentron BuswayFor Global

Power Distribution

Applications

Building on a solid foundation of advanced products for the construction industry, the Siemens Sentron name is recognized worldwide as synonymous with quality and consistent performance.

Sentron Busway delivers impressive features and benefits that make it ideal for many types of industrial and construction implementations.

Sentron Busway installs with minimal hardware and often costs less than cable and conduit installations.

Sentron Busway Overview

SENTRON BUSWAY FOR GLOBAL POWER DISTRIBUTION APPLICATIONSBuilding on a solid foundation of advancedproducts for the construction industry, the Siemens Sentron name is recognizedworldwide as synonymous with quality andconsistent performance. Sentron Buswaydelivers impressive features and benefitsthat make it ideal for many types of indus-trial and construction implementations.

Engineered to ensure the safe and efficientdistribution of power in industrial, commer-cial and institutional environments world-wide, Sentron ampacities range from 225Ato 5000A UL and 100 to 5000 amps IEC.Thanks to an innovative design, you benefitfrom labor-saving installation and a flexible,compact bus system that is an ideal fit formost applications. In fact, Sentron Buswayis one of the industry’s least labor-intensivesystems.

Sentron Busway installs with minimalhardware and often costs less than cableand conduit installations. The lightweightaluminum housing acts as an integralground, joint stacks connect with spliceplates featuring a single-bolt design, andbus plugs and cable tap boxes offer theindustry’s largest wire bending space. An optional 200% neutral within the busbar housing accommodates harmonicscommon in today’s power systems.

Exemplifying the spirit of continuing innovation, Sentron Busway utilizes a state-of-the-art epoxy insulation system, which isapplied using an electrostatic spray processfor optimal insulation integrity.

And, of course, Sentron Busway is certifiedto design standards worldwide, includingUL, NEMA, IEC, CSA, VDE and BS.

See page 34 for installation and applicationinformation.

Siemens Busway Business uses industryleading technology in all its manufacturingprocesses. From bus bar fabrication toElectrostatic Spray Epoxy insulation, all theprocesses used in the manufacturing ofSiemens Sentron Busway are electronicallycontrolled to provide for consistent, highquality results, making Sentron Buswayproducts best in its class.

HOUSINGAll Sentron Busway lines are made with analuminum housing. This lightweight totallyenclosed, non-ventilated housing resistsrust and other elements, distributes heataway from the conductors, and provides anexcellent ground path. The totally encloseddesign also eliminates the need for deratingof the system regardless of installationorientation. The housing is covered with anelectrostatically applied light gray ANSI 61polyester urethane powder paint that isscratch resistant and has a 1,000-hour saltspray resistance rating.

CONDUCTORSThe conductors have a compact construc-tion and can be configured as 3-phase 3-wire, 3-phase 4-wire or 3-phase 4-wirewith 200% neutral. The conductors may beordered in copper (98% conductivity) oraluminum (58% conductivity). The optional200% neutral helps to handle harmonicconditions that may exist. This system isespecially useful with discharge lighting(fluorescent) and computer installations.This will help to minimize overheating andprolong the life cycle of your power distri-bution equipment.

GROUNDSentron Busway offers ground options tomeet your specifications: standard integral aluminum housing ground and optionalinternal grounding bars. It is also availablewith optional isolated ground which isespecially useful in applications where aclean ground is needed. For completeground bar details refer to page 4.

PLATINGAll bus bars are electroplated with tin. This unique tin plating provides excellentconductivity and resists outside elementsfrom attaching to the bars. Optional silverplating is also available.

INSULATIONSentron Busway is insulated with an EpoxyPowder Coating system designed bySiemens Engineers, Epoxy SystemEngineers and Epoxy Powder Specialists,specifically for Siemens Busway products.

The Siemens exclusive Electrostatic Sprayinsulation process produces an even appli-cation of Epoxy powder over the entireconductor bar. This is further enhanced bythe inline filter process and magneticseparator that helps to eliminate contami-nants common to fluidized bed systems.The electrostatic application also provides abetter coating consistency than that of theolder fluidized bed process. The combina-tion of electrostatic spray and lower oventemperatures produces a consistentcoverage with fewer impurities andpinholes in the insulation. The lower oventemperatures reduce the risk of barannealing, which affects the overall qualityof the system.

Sentron Busway insulation provide Class B,130°C insulation meeting UL857, IEC 439requirements.

C PHASE (L3)

100% NEUTRAL (N)

200% NEUTRAL (N)

A PHASE (L1)

B PHASE (L2)

50% INTERNAL GROUND (PE)

Name Plate (NP)

1

JOINT STACKEach Sentron Busway piece is shipped witha joint stack and joint covers installed atone end of the busway and a shipping endprotector at the other end. The joint stackconnects with splice plates that feature asingle bolt design and a special, torqueindicating, double headed break-off bolt.This eliminates the need for torquewrenches and assures proper torque atinstallation of 55 ft.-lbs.(68 N-m). When the proper torque value is achieved,the top bolt head will shear off. Each jointstack allows for +/- .625 inches (15.8mm)adjustability at each joint. Over adjustmentis prevented by the joint covers, which willonly allow a .625 inch (15.8mm) adjust-ment when the knockouts on the jointcover are removed. It is possible to removeany joint connection assembly to allowelectrical isolation or physical removal of abusway length without disturbing adjacentbusway lengths. Isolation joint stacks areavailable and used to electrically isolate abusway section(s) within a busway run. For easy visual identification, isolation jointstack assemblies are painted white.

PLUG-IN OPENINGSSentron Busway offer plug-in style buswaywhich feature plug-in openings rated forfinger safety to IP2X in accordance with IEC529 and BS EN 60439-1, -2 and BS EN60529.

Each plug-in opening has a reversiblehinged dead front designed to protect thecontact surfaces from dirt, dust or moisture.Gasketing is used where applicationsrequire a splash proof (IP55) rating.

IP RATINGSSentron Busway is available in a variety of IPratings. Use the chart below to determinethe IP rating that best fits your applicationneeds.

TESTINGEach piece of Sentron Busway is factorytested before shipping. Tests performedinclude dielectric tests, which are used toinsure integrity of insulation. In addition,Sentron Busway is qualified to both UL andIEC standards. All Sentron Busway ismanufactured and inspected in an ISO9001 registered facility.

STANDARDSAll Sentron Busway products meet thefollowing standards:

UL 857 NEMA BU1CSA C22.2IEC 529, IEC 439-1, 439-2BS EN 60529BS EN 60439-1, 60439-2UL 1479DIN 4102 Parts 9&12BS 6387 Parts 11.1 and 11.2

LABOR SAVINGSUsing Sentron Busway instead of cable andconduit can create savings of up to 20 –30% on total installed costs. Sentronbusway is lightweight, compact and takeshalf the time to install as cable and conduit.Siemens Sentron Busway – Cable/ ConduitConversion Software Program will showyou side by side comparisons of busway vs.cable/conduit. These comparisons includematerial costs, labor costs, bill of materials,and technical information between buswayand cable/conduit. Contact your localSiemens sales office to find out more infor-mation, or visit our web site atwww.sea.siemens.com.

Plug-in Opening and Cover

2

Joint Support

Joint Stack

HousingEnd Ramp

Joint Bolt

Bus Bar Joint Bolt Nut

OrientationArrow

Joint Cover

Splice Plate

Levels of Protection Description Sentron Busway Sentron Low Sentron

Amp Busway Bus PlugsCode Description Feeder Plug-in Feeder Plug-in

IP 2X Plug-in outlet protects against access to live parts by .472 In. (12mm) test probe, even with cover opened. Finger Safe. • • • • •

IP 40 Enclosure protects against entry of .039 In. (1.0mm) test probe. Indoor (Typical UL designation) • • • • •

IP 55 Enclosure protects against entry of dust and water jets. Splash proof • • • • •

IP 66 Enclosure is dust tight and protects against powerful water jets. Outdoor (International Only) •

NEMA 3R Enclosure protects against rain, sleet and damage from ice formation. Outdoor - NAFTA •

Joint Assembly

Sentron Busway Overview

Reversible Hinge Utility Lock-Out Provision

GND-PEINTERNAL/ISOLATED

AØ - L1BØ - L2

CØ - L3

GND-PE INTEGRAL

N

Bus Plug Mounting Hardware

Rubber Stop

Guide

Plug-in

Drop Rod Provision

Busway Side Channel

Clamp Assembly

Mounting Frame

Sentron II Bus Plugs are engineered withthe installer and end user in mind. Theinstaller will benefit from the numerousfeatures, such as factory-installed circuitbreakers and a reversible operatinghandle, designed for safe and easyinstallation. The end user will appreciatethe visible position indicator, as well asthe spring-loaded, padlockable latchwhich prevents access to unauthorizedpersonnel.

Each Sentron II Bus Plug is designed withan interlock device to prevent the doorfrom being opened when the disconnectis on. This also prevents the disconnectfrom being turned on when the door isopen. The interlock ensures that theprotective device is "off" prior to installation or removal of the bus plug.Once the bus plug is properly installed, aspring-loaded, padlockable latch providesadditional security by preventingunauthorized access to the unit.

Alignment and interlock stabs arefeatures of the Sentron II Bus Plugsengineered to prevent improper installa-tion of the unit.

The guide stabs prevent installing thebus plug 180° out of rotation. In addition, the stabs provide supportfor vertical applications. The bus plugground stabs are designed to ensurepositive contact with both the integraland optional internal connection beforethe bus plug fingers contact the phaseand neutral bars. Finally, clamp assem-blies are used to assist in drawing theunit to the busway housing and toprovide secure attachment.

Sentron Bus Plugs greater than 400A areprovided with a mounting frame.The mounting frame eases installationby providing a surface to rest the busplug on prior to drawing the unit to thebusway. Integral guides providepositive alignment with the busway.

For added convenience, Sentron II BusPlugs feature a reversible operatinghandle. The operator may be endmounted for horizontal applications andside mounted for vertical riser applica-tions. Changing the position of theoperator is a procedure that is easilyperformed in the field as needed.

Enclosure Ratings:• IP40• IP55

Conductors:• 3-phase, 3-wire• 3-phase, 4-wire• 3-phase, 4-wire 200% neutral

(400A and below)

Grounding:• Integral (Housing)• Internal• Isolated

Sentron II Bus Plug Overview

Clamp Assembly

Alignment Stab

Interlock Stab

Support Rail

3

4

Sentron Busway Catalog Numbering System

S X 4 0 8 C 1 0 P L 0 6

Sentron

SX = US Lengths

Configuration

3 = 3Ø, 3W

4 = 3Ø, 4W 100% Neutral

5 = 3Ø, 4W 200% Neutral

Ampere Rating 02 = 225A 04 = 400A 06 = 600A 08 = 800A 10 = 1000A 12 = 1200A 13 = 1350A 16 = 1600A 20 = 2000A 25 = 2500A 30 = 3000A 32 = 3200A 40 = 4000A 50 = 5000A �

Bus Bar Material

C = Copper

M = 1000 Amps/In2 Copper

A = Aluminum

L = 750 Amps/In2 Aluminum

Ground

1 = Integral (Housing)

2 = Internal Bus Bar�

3 = Isolated Ground�

IP Rating

0 = IP40�

4 = IP55�

6 = IP66��

9 = NEMA 3R��

� Copper only� Copper or aluminum ground bar� IEC Markets � NEMA Markets � For odd degree angle (other than 90°) specify the degree angle of the turn.� Indoor only (Plug-in and Feeder)� Outdoor use (Feeder only)� Elbow Stack (IP40 and IP55 only)

• Catalog Numbers for Hangers can be found on page 20• Specials must be ordered by description (drawing must be included)

Feeder Length in Inches, ex.: 2'-3" = 027 Feeder lengths available from 2'-0" (024 Inches) up to 10'-0' (120 Inches)

Plug-in L

Riser I

Elbows S = Stack� L = 90° O = Odd degree angle�

Tees E

Offsets F

Combinations O

EXpansion PFittings

Center Cable TTap Boxes

End Cable TTap Boxes

End Closers C

FlanGe Roof Wall

Joint Stacks Standard Isolation

SerVice Heads 1 = 1 Phase 2 = 3 Phase T = Throat

Reducers Fused Non-fused

Flanged Ends R = U.S. Standard E = Int'l Standard O= Other

Transposition R

Length 04 = 4'0" 06 = 6"0" 08 = 8'0" 10 = 10'0"

Length 04 = 4'0" 06 = 6'0" 08 = 8'0" 10 = 10'0"

Edge Up DownFlat Right Left



Edge Up Flat LeftEdge Down Flat LeftEdge Up Flat RightEdge Down Flat RightFlat Left Edge UpFlat Left Edge DownFlat Right Edge UpFlat Right Edge Down

F T

B Standard EXtension

Vertical StandardHorizontal EXtension

L S

F L

S T

Transformer XUtility Florida Pwr/Light Houston Pwr/Light Commonwealth ED Pacific Gas/Electric Detroit Edison Other R FR N

N D

PG = Phase & GroundPO = Phase onlyGO = Ground only

Suffix part of Catalog Numbers

5

Catalog Numbering System 4

Contents 5

Technical Data 6-7

Straight Sections – Plug-In, Riser and Feeder 8-9

Elbows 10-11

Offsets and Combinations 12-13

Tees 14

End Tap Boxes 15

Center Tap Boxes 16

In-Line Disconnect Cubicles and Expansion Fittings 17

Reducers and Phase Rotation Fittings 18

Service Heads 19

Hangers 20

End Closers and Flanges 21

Flanged Ends 22-23

Panelboards and Meter Center Modules 24-25

Busway System Application Requirements 34-36

Sentron Busway 225-5000Amp

Ampere Bus Bar Width Ohms x 10-3 per 100 feet Voltage Drop - Concentrated Loads, Line-to-Line per 100 feet at 100% Rated Load, 35°C AmbientRating x 0.25 in. (6.4mm) Thick Line to Neutral Power Factor

R X Z 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.072.5 66.4 60.0 53.1 45.6 36.9 25.8 0.0

Aluminum225 1.75 (44.5) 3.94 1.13 4.10 0.88 1.02 1.15 1.27 1.39 1.49 1.57 1.54400 1.75 (44.5) 4.08 1.23 4.26 1.66 1.91 2.15 2.38 2.58 2.77 2.91 2.83600 1.75 (44.5) 4.26 1.32 4.46 2.64 3.03 3.40 3.75 4.08 4.37 4.58 4.43800 2.38 (60.5) 3.42 1.06 3.58 2.82 3.24 3.64 4.02 4.36 4.67 4.90 4.74

1000 3.25 (82.6) 2.45 0.74 2.56 2.50 2.88 3.24 3.57 3.89 4.17 4.38 4.241200 4.38 (111.3) 1.86 0.59 1.95 2.32 2.66 2.99 3.29 3.58 3.82 4.01 3.871350 5.38 (136.7) 1.39 0.24 1.41 1.50 1.81 2.10 2.39 2.67 2.93 3.17 3.251600 6.50 (165.1) 1.21 0.48 1.29 2.19 2.48 2.75 3.00 3.23 3.43 3.56 3.352000 8.75 (222.3) 0.91 0.35 0.98 2.11 2.38 2.64 2.87 3.08 3.26 3.37 3.162500 (2) 5.63 (143.0) 0.68 0.29 0.74 2.09 2.34 2.57 2.78 2.97 3.12 3.21 2.953000 (2) 6.75 (171.5) 0.54 0.28 0.61 2.24 2.47 2.67 2.85 3.01 3.12 3.16 2.803200 (2) 7.50 (190.5) 0.48 0.33 0.58 2.53 2.73 2.91 3.06 3.17 3.23 3.20 2.684000 (2) 9.00 (228.6) 0.62 0.21 0.51 2.34 2.61 2.85 3.08 3.27 3.43 3.51 3.20Copper225 1.75 (44.5) 2.34 1.13 2.60 0.69 0.77 0.84 0.90 0.95 0.99 1.01 0.91400 1.75 (44.5) 2.44 1.13 2.69 1.26 1.40 1.52 1.64 1.74 1.82 1.86 1.69600 1.75 (44.5) 2.58 1.16 2.83 1.96 2.18 2.39 2.58 2.74 2.87 2.94 2.68800 1.75 (44.5) 2.71 1.17 2.95 2.67 2.98 3.28 3.55 3.78 3.97 4.08 3.76

1000 2.25 (57.2) 2.12 0.98 2.30 2.58 2.88 3.17 3.44 3.67 3.86 3.98 3.671200 2.88 (73.2) 1.66 0.77 1.83 2.56 2.85 3.11 3.35 3.56 3.72 3.80 3.451350 3.50 (88.9) 1.30 0.64 1.45 2.34 2.59 2.82 3.03 3.20 3.33 3.39 3.041600 4.50 (114.3) 1.06 0.56 1.20 2.37 2.60 2.82 3.01 3.17 3.29 3.32 2.942000 6.00 (152.4) 0.77 0.44 0.89 2.27 2.48 2.66 2.83 2.96 3.05 3.07 2.662500 8.50 (215.9) 0.55 0.35 0.65 2.15 2.34 2.50 2.64 2.75 2.82 2.81 2.393000 (2) 4.75 (120.7) 0.49 0.27 0.56 2.07 2.28 2.46 2.62 2.76 2.86 2.89 2.543200 (2) 5.50 (139.7) 0.44 0.30 0.53 2.33 2.51 2.67 2.80 2.90 2.96 2.93 2.444000 (2) 6.50 (165.1) 0.39 0.26 0.47 2.50 2.71 2.89 3.04 3.16 3.23 3.21 2.715000 (2) 8.50 (215.9) 0.30 0.21 0.37 2.49 2.69 2.86 3.00 3.11 3.17 3.15 2.63

6

Technical Data

Notes:1. For plug-in distributed loads, divide voltage

drop values by 2.2. To determine voltage drop line-to-neutral,

multiply line-to-line values by 0.577.3. Actual voltage drop for different lengths and at

loadings less than full rated current can be calculated using the formula:

Vd (actual) = Vd (table) x actual load x actual length (ft)rated load 100 feet

4. For 50 Hz, multiply reactance (X) by 0.85 and resistance values do not change. For 400 Hz, multiply reactance by 3.75 and multiply resistance by 1.4. Calculate new voltage drop: Vd = amps load x √3(Rcos θ + X sin θ) per 100 ft,

where cos θ = Power Factor.

5. For metric conversion R, X, Z values“in Ohms per meters Line to Neutral”R x .0328X x .0328Z x .0328

6. For metric conversion“Line to Line per meter at 25° C ambient in mV/A/m”(Vd 32.8) / A Divide Vd by 2 for distributed loads.

55

5500

5000

4500

4000

3500

3000

2500

2000

1500

1000

500

0 8070605040302010Temperature Rise °C (above ambient)

600 A

800 A1000 A1200 A1350 A

1600 A

2000 A

2500 A

3000 A

4000 A

Temperature Heat Rise, ALUMINUMLoad in Amps Busway

Size

Temperature Heat Rise, COPPERLoad in Amps Busway

Size5500

5000

4500

3500

4000

3000

7060554030 50

2500

2000

1500

1000

10

500

0 20 100

800 A1000 A1200 A1350 A1600 A

2000 A

2500 A

4000 A

3000 A

5000 A

Temperature Rise °C (above ambient)

C PHASE (L3)

100% NEUTRAL (N)

200% NEUTRAL (N)

A PHASE (L1)

B PHASE (L2)

50% INTERNAL OR ISOLATED

GROUND (PE)

UL Short Circuit Ratings UL Series Connected with FuseAmpere RMS Symmetrical (kA) Maximum Fuse Size for 200kA RMS Symmetrical RatingRating 6 cycle 1 sec. 3 sec. Class R Class J & T Class L Aluminum≤600 85 28 16 600 600 J & T -800 100 47 27 - 800 T 1200

1000 100 50 29 - - 30001200 125 60 35 - - 30001350 150 75 43 - - 30001600 150 90 52 - - 30002000 150 110 64 - - 50002500 200 130 75 - - 50003000 200 160 92 - - -3200 200 160 92 - - -4000 200 200 115 - - -Copper≤600 85 40 23 600 600 J & T -800 85 40 23 - 800 T 1600

1000 100 50 29 - - 30001200 100 65 38 - - 30001350 100 80 46 - - 30001600 125 95 55 - - 40002000 150 115 66 - - 50002500 150 130 75 - - 50003000 200 175 101 - - -3200 200 175 101 - - -4000 200 200 115 - - -5000 200 200 115 - - -

7

Ground CapacityAmpere Bus Bar Width Bars Minimum CSA for Sectional Area Effective Current Carrying Ground Circuit Characteristics under Fault Conditions Rating Inches (mm) per Ground Bus per 50% Internal Integral (Housing) Capacity of Housing Ohms x 103 per 100 ft

Pole UL 857 Table 14 Ground Bar Ground % of UL % of Internal Ground Housing GroundIn2 (mm2) In2 (mm2) In2 (mm2) Requirement Phase Bar R X Z R X Z

Aluminum225 1.75 (44.5) 1 0.08 (53.5) 0.22 (141.1) 2.30 (1485.1) 1333 253 10.267 9.037 4.872 14.200 12.963 5.797400 1.75 (44.5) 1 0.17 (107.1) 0.22 (141.1) 2.30 (1485.1) 667 253 10.267 9.037 4.872 14.200 12.963 5.797600 1.75 (44.5) 1 0.17 (107.1) 0.22 (141.1) 2.30 (1485.1) 667 253 10.267 9.037 4.872 14.200 12.963 5.797800 2.38 (60.5) 1 0.17 (107.1) 0.30 (191.9) 2.40 (1550.1) 688 192 8.063 7.333 3.351 11.150 10.000 4.932

1000 3.25 (82.6) 1 0.20 (126.5) 0.41 (262.1) 2.54 (1639.9) 607 147 7.208 6.628 2.833 9.202 8.442 3.6621200 4.38 (111.1) 1 0.23 (146.5) 0.55 (352.8) 2.72 (1756.6) 552 115 6.358 5.852 2.487 7.625 6.926 3.1891350 5.38 (136.5) 1 0.29 (189.7) 0.67 (433.5) 2.88 (1859.8) 446 97 5.561 5.115 2.182 6.478 5.883 2.7131600 6.50 (165.1) 1 0.29 (189.7) 0.81 (524.2) 3.06 (1975.4) 467 84 4.837 4.489 1.801 5.687 5.206 2.2892000 8.75 (222.3) 1 0.35 (227.7) 1.09 (705.6) 3.42 (2207.7) 425 69 3.735 3.467 1.390 4.565 4.267 1.6232500 5.63 (142.9) 2 0.52 (332.3) 1.41 (907.3) 3.85 (2480.7) 320 59 3.169 2.955 1.145 4.129 3.837 1.5263000 6.75 (171.5) 2 0.59 (380.0) 1.69 (1088.7) 4.20 (2711.9) 301 53 2.848 2.683 0.954 3.835 3.635 1.2213200 7.50 (190.5) 2 0.81 (522.6) 1.88 (1209.7) 4.44 (2866.8) 229 51 2.648 2.493 0.894 3.614 3.428 1.1444000 9.00 (228.6) 2 0.81 (522.6) 2.25 (1451.6) 4.92 (3176.5) 250 50 2.446 2.339 0.715 3.500 3.378 0.916Copper225 1.75 (44.5) 1 0.05 (33.5) 0.22 (141.1) 2.30 (1485.1) 2128 261 7.380 6.330 3.803 11.338 10.083 5.183400 1.75 (44.5) 1 0.11 (67.7) 0.22 (141.1) 2.30 (1485.1) 1054 261 7.380 6.330 3.803 11.338 10.083 5.183600 1.75 (44.5) 1 0.11 (67.7) 0.22 (141.1) 2.30 (1485.1) 1054 261 7.380 6.330 3.803 11.338 10.083 5.183800 1.75 (44.5) 1 0.11 (67.7) 0.22 (141.1) 2.30 (1485.1) 1054 261 7.380 6.330 3.803 11.338 10.083 5.183

1000 2.25 (57.2) 1 0.13 (85.2) 0.28 (181.5) 2.38 (1536.7) 860 207 6.715 5.993 3.029 10.194 9.191 4.4091200 2.88 (73.0) 1 0.18 (114.2) 0.36 (231.9) 2.48 (1601.8) 661 166 6.186 5.676 2.460 8.996 8.212 3.6741350 3.50 (88.9) 1 0.24 (152.3) 0.44 (282.3) 2.58 (1665.8) 510 140 5.704 5.267 2.188 8.000 7.492 2.8071600 4.50 (114.3) 1 0.24 (152.3) 0.56 (362.9) 2.74 (1769.0) 534 113 4.719 4.323 1.893 7.411 6.880 2.7562000 6.00 (152.4) 1 0.29 (189.7) 0.75 (483.9) 2.98 (1923.8) 457 90 3.507 3.181 1.476 6.422 6.032 2.2052500 8.50 (215.9) 1 0.35 (227.7) 1.06 (685.5) 3.38 (2181.9) 421 70 2.294 2.020 1.087 3.072 5.419 1.7643000 4.75 (120.7) 2 0.41 (265.8) 1.19 (766.1) 3.56 (2290.0) 376 66 2.117 1.874 0.984 4.859 4.631 1.4703200 5.50 (139.7) 2 0.59 (380.0) 1.38 (887.1) 3.80 (2453.9) 277 60 1.938 1.691 0.947 4.353 4.129 1.3784000 6.50 (165.1) 2 0.59 (380.0) 1.63 (1048.4) 4.12 (2660.3) 296 54 1.688 1.500 0.773 3.334 3.060 1.3235000 8.50 (215.9) 2 0.71 (456.1) 2.13 (1371.0) 4.76 (3073.2) 278 50 1.360 1.218 0.606 1.989 1.783 0.882Note: Bus bar thickness = .25 in. (6.4mm), Ground bar thickness = .125 in.(3.18mm)

Sentron Busway has UL approved SeriesRatings. By using the appropriate line sidefuse, short circuit ratings can be enhancedto 200kA for lower amperage busway.

8

STRAIGHT SECTIONSSentron Busway can be ordered withAluminum or Copper bus bars. Aluminumbars are available in 225-4000 ampere sections. Copper bars are available in 225-5000 ampere sections. Sentron Buswayincludes an integral housing ground, and isavailable with an internal ground bar or an isolated ground bar in all ampere ratings.Sentron Busway housing is a four-piece aluminum design.

PLUG-IN SECTIONSSentron plug-in sections are designed withplug-in openings centered on 24 in.(610mm) intervals, and are located on bothsides of the busway for optimum utilization.Plug-in sections are available in standardlengths of 4 ft. (1.22m), 6 ft. (1.83m), 8 ft.(2.44m) and 10 ft. (3.05m). Sentron plug-in sections meet IP40 (indoor) and IP55(splash proof) requirements. One joint stackassembly is provided with each plug-insection.

RISER SECTIONSSentron Riser sections are designed withplug-in openings centered on 24 in.(610mm) intervals on one side of thebusway only. This eliminates unusable plug-in outlets in vertical applications. Riserbusway is available in standard lengths of 4ft. (1.22m), 6 ft. (1.83m), 8 ft. (2.44m) and10 ft. (3.05m). Sentron Riser Busway isavailable in IP40 (indoor) and IP55 (splashproof). One joint stack assembly is providedwith each riser section.

PLUG-IN OUTLET FEATURESThe plug-in outlet molded guard designprevents incidental finger contact with liveconductors. Sentron plug-in outlets are IP2X rated which means a .472 in. (12mm)or larger probe is unable to enter a plug-inoutlet.

FEEDER SECTIONSFeeder busway carries the current of thebusway system from the supply source.Feeder busway does not have plug-in outlets. Sentron Feeder busway is availablein custom lengths from 2 ft. (.61m) to 10ft. (3.05m). Place orders for Sentron Feedersections in inches to meet exact lengthrequirements. Feeder sections are rated asIP40 (Indoor), IP55 (Splash Proof), NEMA 3R(Outdoor), and IP66 (Severe Outdoor). One joint stack assembly is provided witheach feeder section.

Straight Sections – Plug-In, Riser and Feeder

Name Plate (NP)LC LC

GAØ

BØ

CØ

N

of Jointof Joint Plug-in OutletCL

12.0"(305mm)

24.0"(610mm)


GAØ

BØ

CØ

N

of Jointof Joint Plug-in OutletCL

12.0"(305mm)

24.0"(610mm)


GAØ

BØ

CØ

N

of Jointof Joint

Standard Plug-In Section (Standard plug-in outlets on both sides on 24 in. centers)Suffix PL04 (4 ft.), PL06 (6 ft.), PL08 (8 ft.), PL10 (10 ft.)

Standard Riser Section (Standard Plug-In outlets on one side on 24 in. centers)Suffix RI04 (4 ft.), RI06 (6 ft.), RI08 (8 ft.), RI10 (10 ft.)

Standard Feeder SectionSuffix F024 - 120 (last 3 digits = length in Inches, 024=24 in., 120=120 in.)

9

Sentron Busway, Widths and WeightsAmpere Rating Dimension Inches (mm) Approximate Weight – lbs per ft. (kg per meter)

3Ø, 3-Wire 3Ø, 3-Wire 3Ø, 4-Wire 3Ø, 4-Wire 3Ø, 4-Wire 3Ø, 4-Wirewith Internal with Internal 200% Neutral 200% NeutralGround Ground with Internal

GroundAluminum≤600 “W1” 3.9 (99) 5 (8) 5 (8) 6 (9) 6 (9) 7 (10) 7 (10)800 “W1” 4.6 (117) 6 (9) 6 (9) 7 (10) 7 (10) 7 (11) 8 (11)

1000 “W1” 5.4 (137) 7 (10) 7 (11) 8 (12) 8 (12) 9 (13) 9 (14)1200 “W1” 6.6 (168) 8 (12) 9 (13) 9 (14) 10 (15) 11 (16) 11 (17)1350 “W1” 7.6 (193) 9 (13) 10 (15) 11 (16) 11 (17) 12 (18) 13 (19)1600 “W1” 8.7 (221) 10 (15) 11 (17) 12 (18) 13 (19) 14 (21) 15 (22)2000 “W1” 10.9 (277) 13 (19) 14 (21) 15 (23) 16 (24) 18 (26) 19 (28)2500 “W2” 13.7 (348) 15 (22) 17 (25) 18 (27) 20 (30) 22 (33) 23 (34)3000 “W2” 15.8 (402) 17 (25) 19 (28) 21 (31) 23 (34) 25 (37) 27 (40)3200 “W2” 17.3 (439) 18 (27) 20 (30) 23 (34) 25 (37) 27 (40) 29 (43)4000 “W2” 20.3 (516) 22 (33) 25 (37) 27 (40) 30 (44) 32 (48) 35 (52)Copper≤800 “W1” 3.9 (99) 9 (13) 10 (14) 10 (16) 11 (17) 12 (18) 13 (19)1000 “W1” 4.4 (112) 10 (15) 11 (17) 12 (19) 14 (20) 15 (22) 16 (23)1200 “W1” 5.1 (130) 12 (18) 14 (20) 15 (23) 16 (24) 18 (26) 19 (29)1350 “W1” 5.7 (145) 14 (21) 16 (24) 17 (26) 19 (29) 21 (31) 23 (34)1600 “W1” 6.7 (170) 17 (26) 19 (29) 22 (32) 24 (35) 26 (38) 28 (42)2000 “W1” 8.2 (208) 22 (32) 25 (37) 28 (41) 30 (45) 33 (50) 36 (54)2500 “W1” 10.7 (272) 30 (44) 34 (50) 38 (56) 42 (62) 46 (68) 50 (74)3000 ”W2” 11.8 (300) 33 (49) 37 (55) 42 (63) 47 (70) 51 (76) 56 (83)3200 “W2” 13.3 (335) 37 (55) 42 (63) 48 (72) 53 (79) 58 (86) 64 (95)4000 ”W2” 15.3 (389) 43 (64) 50 (75) 56 (83) 62 (92) 68 (101) 75 (112)5000 ”W2” 19.3 (491) 56 (83) 64 (95) 72 (107) 80 (119) 89 (132) 97 (145)

5.0"(127mm)

W1 W2

Sentron Busway elbows provide a simple,convenient method of changing the direction (left, right , up or down) of abusway run. Two elbow styles are offered:elbow stack and elbow section.

ELBOW STACKSAn elbow stack is a joint stack thatconnects two busway sections at 90degrees to one another (left, right, up ordown).

Key Features & Benefits:1) 50% reduction in user installed

hardware.2) Up to 50% reduction in weight aids

handling and installation. 3) Compact design facilitates installation

in tight areas.

FLATWISE ELBOW STACKS Flatwise elbow stacks are used for left andright directional changes when the buswaysystem is mounted in the horizontal plane;bus bars run parallel to the floor. Thenameplate (NP) lies on the neutral side offlatwise elbow stacks, which is the side ofthe elbow that faces the floor.

Note: flatwise elbow stacks can be orderedas either right-hand (ESFR) orleft-hand (ESFL) to follow the same nomen-clature as an elbow section. Theconstruction is identical and interchange-able.

EDGEWISE ELBOW STACKS Edgewise elbow stacks create up and downdirectional changes. The nameplate andneutral side lie on the outside of the bendfor edge up elbow stacks. The nameplateand neutral side lie on the inside of thebend for edge down elbow stacks.

Note: edge up and edge down elbow stacksare not interchangeable.

NP

10

Elbows

NP

Edge DownSuffix ESED

Flatwise Elbow Stacks, Dimensions (standard/min.)Ampere Rating Dimensions Inches (mm)

“A”Aluminum≤600 1.00 (25)800 1.25 (32)

1000 2.00 (51)1200 2.50 (64)1350 3.00 (76)1600 3.50 (89)2000 4.75 (121)2500 5.75 (146)3000 7.00 (178)3200 7.75 (197)4000 9.25 (235)Copper≤800 1.00 (25)1000 1.00 (25)1200 1.25 (33)1350 2.00 (50)1600 2.50 (64)2000 3.25 (83)2500 4.50 (114)3000 5.00 (127)3200 5.75 (146)4000 6.75 (171)5000 9.75 (248)

FlatSuffix ESFR/ESFL

NP

Edge UpSuffix ESEU

A

JointCL

C BuswayL

LBusway

C LJoint

C

A

A

A

BuswayCL

C JointL

CLLCJoint Busway

A

LC Joint

BuswayLC

CLCLJoint Busway

Edgewise Elbow Stacks, Dimensions (standard/min.)Ampere Rating Dimensions Inches (mm)

“A”Aluminum225-4000 4.25 (108)Copper225-5000 4.25 (108)

11

FLATWISE ELBOW SECTIONS Flatwise elbow sections are used for leftand right directional changes when thebusway system is mounted in thehorizontal plane; bus bars run parallel tothe floor. The nameplate (NP) lies on theneutral side of flatwise elbows, which is theside of the elbow that faces the floor. Thejoint stack assembly may be moved to theopposite leg to change the orientation fromleft to right/right to left.

EDGEWISE ELBOW SECTIONS Edgewise elbow sections create up anddown directional changes. The nameplateand neutral side lie on the outside of thebend for edge up elbows. The nameplateand neutral side lie on the inside of thebend for edge down elbows. The joint stackassembly on edgewise elbows can not bemoved in order to change orientation fromup to down/down to up.

Sentron Busway elbow sections are shippedwith a joint stack assembly on one end fordirect connection to the busway system.

For both edgewise and flatwise elbowsections the sum of the two legs may notexceed 10 ft. (3.05m). See drawings forminimum dimensions. Custom lengths areavailable.

Edgewise Elbow Sections, Dimensions (standard/min.)Ampere Rating Dimensions Inches (mm)

“A”, “B”Aluminum≤600 10 (254)800 10 (254)

1000 10 (254)1200 10 (254)1350 10 (254)1600 10 (254)2000 10 (254)2500 10 (254)3000 10 (254)3200 10 (254)4000 10 (254)Copper≤800 10 (254)1000 10 (254)1200 10 (254)1350 10 (254)1600 10 (254)2000 10 (254)2500 10 (254)3000 10 (254)3200 10 (254)4000 10 (254)5000 10 (254)

Edge UpSuffix ELEU

LC

of Joint

ANP

CL

LC

B

CL

Edge DownSuffix ELED

LC

of Joint

A

NP

CL

LC

B

CL

Flatwise Elbow Sections, Dimensions (standard/min.)Ampere Rating Dimensions Inches (mm)

“A”, “B”Aluminum≤600 12 (305)800 12 (305)

1000 12 (305)1200 12 (305)1350 12 (305)1600 18 (457)2000 18 (457)2500 18 (457)3000 18 (457)3200 18 (457)4000 24 (610)Copper≤800 12 (305)1000 12 (305)1200 12 (305)1350 12 (305)1600 12 (305)2000 12 (305)2500 18 (457)3000 18 (457)3200 18 (457)4000 18 (457)5000 24 (610)

Flat RightSuffix ELFR

LC

of Joint

B

CL

A

CL

CL

NP

Flat LeftSuffix ELFL LC

of Joint

B

CL

A

NP CL

LC

12

OFFSETS Offsets can be utilized to solve difficultcontour problems and save space. In appli-cations where space does not allow for twoconnected elbows, a single offset canbypass an obstruction. All offsets aresupplied with one joint stack assembly.Overall length may not exceed 10 ft.(3.05m).

COMBINATIONS Combinations are used to create edge toflat/flat to edge changes in the busway run.One joint stack assembly is shipped withcombination. Overall length may notexceed 10 ft. (3.05m).

Offsets and Combinations

Flatwise Offsets, Dimensions (standard/min.)

Ampere Dimensions Inches (mm)

Rating “A” “B” “C”

Aluminum

≤600 12 (305) 5 (127) 12 (305)

800 12 (305) 5 (127) 12 (305)

1000 12 (305) 5 (127) 12 (305)

1200 12 (305) 5 (127) 12 (305)

1350 12 (305) 5 (127) 12 (305)

1600 18 (457) 5 (127) 18 (457)

2000 18 (457) 5 (127) 18 (457)

2500 18 (457) 5 (127) 18 (457)

3000 18 (457) 5 (127) 18 (457)

3200 18 (457) 5 (127) 18 (457)

4000 24 (610) 8 (203) 24 (610)

Copper

≤800 12 (305) 5 (127) 12 (305)

1000 12 (305) 5 (127) 12 (305)

1200 12 (305) 5 (127) 12 (305)

1350 12 (305) 5 (127) 12 (305)

1600 12 (305) 5 (127) 12 (305)

2000 12 (305) 5 (127) 12 (305)

2500 18 (457) 5 (127) 18 (457)

3000 18 (457) 5 (127) 18 (457)

3200 18 (457) 5 (127) 18 (457)

4000 18 (457) 5 (127) 18 (457)

5000 24 (610) 8 (203) 24 (610)

Flat RightSuffix OFFR

LC

of JointC

NP

CL

A

B

CL

CL

CL

Flat LeftSuffix OFFL

LC

of Joint

CNP

CL

AB

CL

CLCL

Edge UpSuffix OFEU

of Joint

NPA

B

CL

CL

CLC

CL

Edge DownSuffix OFED

of JointNP

AB

CL

CL

CLC

CL

Edgewise Offsets, Dimensions (standard/min.)



Aluminum

≤600 10 (254) 6 (152) 10 (254)

800 10 (254) 6 (152) 10 (254)

1000 10 (254) 6 (152) 10 (254)

1200 10 (254) 6 (152) 10 (254)

1350 10 (254) 6 (152) 10 (254)

1600 10 (254) 6 (152) 10 (254)

2000 10 (254) 6 (152) 10 (254)

2500 10 (254) 6 (152) 10 (254)

3000 10 (254) 6 (152) 10 (254)

3200 10 (254) 6 (152) 10 (254)

4000 10 (254) 6 (152) 10 (254)

Copper

≤800 10 (254) 6 (152) 10 (254)

1000 10 (254) 6 (152) 10 (254)

1200 10 (254) 6 (152) 10 (254)

1350 10 (254) 6 (152) 10 (254)

1600 10 (254) 6 (152) 10 (254)

2000 10 (254) 6 (152) 10 (254)

2500 10 (254) 6 (152) 10 (254)

3000 10 (254) 6 (152) 10 (254)

3200 10 (254) 6 (152) 10 (254)

4000 10 (254) 6 (152) 10 (254)

5000 10 (254) 6 (152) 10 (254)

13

Combinations, Dimensions (standard/min.)



Aluminum

≤600 10 (254) 8 (203) 12 (305)

800 10 (254) 8 (203) 12 (305)

1000 10 (254) 8 (203) 12 (305)

1200 10 (254) 8 (203) 12 (305)

1350 10 (254) 8 (203) 12 (305)

1600 10 (254) 12 (305) 18 (457)

2000 10 (254) 12 (305) 18 (457)

2500 10 (254) 12 (305) 18 (457)

3000 10 (254) 12 (305) 18 (457)

3200 10 (254) 12 (305) 18 (457)

4000 10 (254) 16 (406) 24 (610)

Copper

≤800 10 (254) 8 (203) 12 (305)

1000 10 (254) 8 (203) 12 (305)

1200 10 (254) 8 (203) 12 (305)

1350 10 (254) 8 (203) 12 (305)

1600 10 (254) 8 (203) 12 (305)

2000 10 (254) 8 (203) 12 (305)

2500 10 (254) 12 (305) 18 (457)

3000 10 (254) 12 (305) 18 (457)

3200 10 (254) 12 (305) 18 (457)

4000 10 (254) 12 (305) 18 (457)

5000 10 (254) 16 (406) 24 (610)

Flat Right - Edge UpSuffix CORU

Flat Left - Edge UpSuffix COLU

Flat Right - Edge DownSuffix CORD

Flat Left - Edge DownSuffix COLD

Edge Down - Flat Right Suffix CODR

of Joint

NPC

CL

B

CL

ALCCL

CL

Edge Down - Flat Left Suffix CODL

of Joint

NP C

CL

A

CL

LCCL

CL

B

Edge Up - Flat Right Suffix COUR

of Joint

NP

C

CLA

CL

B

LC CL

CL

Edge Up - Flat Left Suffix COUL

of Joint

NP

C

CLB

CL

A

LCCL

LC

LC

CL

NP

A

C

of Joint

LC

CL

CL

B

of Joint

NP

A

CCL

LC

CL

CLCL

B

LC

CL

CLNP

A

Cof Joint

LC

LC

B

LC

CL

CL

NP

C

A

B

of Joint

LC

LC

14

Tees are used to simplify directional andplane orientation changes in a buswaysystem. Tees can make 90° bends left orright, and up and down along the buswayrun. All tees are supplied with two jointstack assemblies.

FLATWISE TEES Flatwise tees are used to create left andright branches. The nameplate (NP) lies onthe neutral side of the tee.

EDGEWISE TEES Edgewise tees are used to create branchesthat stem up or down from the busway run.The nameplate and neutral side lie towardthe floor on edge down tees while thenameplate and neutral side lie toward theceiling on edge up tees. Edgewise tees arehoused in a special box enclosure toprovide rigidity and shield against dirt anddust.

Tees

Edgewise Tees, Dimensions (standard/min.)Ampere Rating Dimensions Inches (mm)

“C”Aluminum≤600 13 (330)800 13 (330)

1000 13 (330)1200 18 (457)1350 18 (457)1600 18 (457)2000 18 (457)2500 27 (686)3000 27 (686)3200 27 (686)4000 29 (737)Copper≤800 13 (330)1000 13 (330)1200 13 (330)1350 13 (330)1600 18 (457)2000 18 (457)2500 18 (457)3000 27 (686)3200 27 (686)4000 27 (686)5000 29 (737)

CLof Joint

32.0"(813mm)

CL

24.0"(610mm)

48.0"(1219mm)

C

CLLC

16.0"(406mm

LC

8.0"(203mm)

8.0"(203mm)

NPEdge DownSuffix TEED

Flat RightSuffix TEFR

Edge UpSuffix TEEU

LCof Joint

B

NP

CL

A

CCL

CL

CL

Flat LeftSuffix TEFL

LC

of Joint

B

NP

CL

A

C

CL

CL

CL

Flatwise Tees, Dimensions (standard/min.)Ampere Rating Dimensions Inches (mm

“A”, “B”, “C”Aluminum≤600 12 (305)800 12 (305)

1000 12 (305)1200 12 (305)1350 12 (305)1600 18 (457)2000 18 (457)2500 18 (457)3000 18 (457)3200 18 (457)4000 24 (610)Copper≤800 12 (305)1000 12 (305)1200 12 (305)1350 12 (305)1600 12 (305)2000 12 (305)2500 18 (457)3000 18 (457)3200 18 (457)4000 18 (457)5000 24 (610)

CLof Joint

32.0"(813mm)

24.0"(610mm

48.0"(1219mm)

CLC

8.0"(203mm)

24.0"(610mm)

8.0"(203mm)

LC

LC

NP

15

END TAP BOXESEnd tap boxes are non-fusible devices usedto connect cable and conduit to the end ofa busway run or where busway runsconnect without the need for over-currentprotection. End tap boxes may be installedat the end or beginning of a run. Verticalend tap boxes and horizontal end tap boxescan be installed in both horizontal andvertical applications. Extended end tapboxes are available if the applicationrequires additional wire bending space. One joint stack assembly is shipped witheach end tap box.

End Tap Boxes

Standard and Extended Horizontal End Tap Boxes, DimensionsAmpere Dimensions Inches (mm) Wire Bend Space Cable Lugs GroundRating “A” “B” Std. “B” Ext. “C” Std. “C” Ext. Per Phase and Neutral Lugs �

Qty. SizeAluminum225 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 � 1400 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 � 1600 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 2 � 1800 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 3 � 1

1000 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 4 � 11200 18 (457) 32 (813) 37 (940) 20 (508) 24 (610) 4 � 11350 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 4 � 11600 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 5 � 12000 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 6 � 22500 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 8 � 23000 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 � 23200 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 � 24000 29 (737) 33 (838) 37 (940) 20 (508) 24 (610) 12 � 3Copper225 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 � 1400 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 � 1600 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 2 � 1800 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 3 � 1

1000 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 4 � 11200 13 (330) 33 (838) 37 (940) 20 (508) 24 (610) 4 � 11350 13 (330) 33 (838) 37 (940) 20 (508) 24 (610) 4 � 11600 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 5 � 12000 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 6 � 22500 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 8 � 23000 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 � 23200 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 � 24000 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 12 � 35000 29 (737) 33 (838) 37 (940) 20 (508) 24 (610) 15 � 4

Standard and Extended Vertical End Tap Boxes, DimensionsAluminum225 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 � 1400 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 � 1600 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 2 � 1800 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 3 � 1

1000 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 4 � 11200 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 4 � 11350 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 4 � 11600 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 5 � 12000 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 6 � 22500 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 8 � 23000 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 9 � 23200 29 (737) 28 (711) 32 (813) 20 (508) 24 (610) 9 � 24000 29 (737) 28 (711) 32 (813) 20 (508) 24 (610) 12 � 3Copper225 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 � 1400 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 � 1600 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 2 � 1800 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 3 � 1

1000 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 4 � 11200 13 (330) 28 (711) 32 (813) 20 (508) 24 (610) 4 � 11350 13 (330) 28 (711) 32 (813) 20 (508) 24 (610) 4 � 11600 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 5 � 12000 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 6 � 22500 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 8 � 23000 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 9 � 23200 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 9 � 24000 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 12 � 35000 29 (737) 28 (711) 32 (813) 20 (508) 24 (610) 15 � 4� #6 AWG - 350 kcmil, Cu / Al � #4 AWG - 600 kcmil, Cu / Al

CL

8.0"(203mm

C B

(508mm)20.0"

LC

A

24.0"(610mm) for isolated ground3

3

NP

B

CL

A

24.0"(610mm)

C

8.0"(203mm)

6.75"(171mm)

LC

CL

NP

Horizontal End Tap BoxSuffix ETHS (Std.) ETHX (Ext.)

Vertical End Tap BoxSuffix ETVS (Std.) ETVX (Ext.)

16

CENTER TAP BOXESCenter tap boxes are non-fusible devicesutilized to feed to or take off power fromthe busway run. When loads served by thebusway run do not require over-currentprotection, center tap boxes may be used. If the application requires additional wiringbending space, extended center tap boxesare available. Center tap boxes are an actualpart of the busway run and require a spaceof 32 in. (810mm) for installation. One jointstack assembly is provided with each centertap box.

Center Tap Boxes

CL

A

22.0"(558mm

8.0"(203mm)

B

D

(203mm)8.0"

C

CL

3

Wire Bend Space

3 24.0"(610mm) for isolated ground

NP

Center Tap BoxSuffix CTBS (Std.) CTBX (Ext.)

Standard and Extended Center Tap Boxes, Dimensions

Ampere Dimensions Inches (mm) Wire Bend Space Cable Lugs Ground

Rating “A” Std. “B” “D” “A” Ext. “C” Std. “C” Ext. Per Phase and Neutral Lugs�

Qty. Size

Aluminum

225 25 (635) 16 (406) 3.9 (99) 29 (737) 17 (432) 21 (533) 1 � 1

400 25 (635) 16 (406) 3.9 (99) 29 (737) 17 (432) 21 (533) 1 � 1

600 25 (635) 16 (406) 3.9 (99) 29 (737) 17 (432) 21 (533) 2 � 1

800 25 (635) 16 (406) 4.2 (107) 29 (737) 17 (432) 21 (533) 3 � 1

1000 25 (635) 16 (406) 4.6 (117) 29 (737) 17 (432) 21 (533) 4 � 1

1200 29 (737) 16 (406) 5.2 (132) 33 (838) 20 (508) 24 (610) 4 � 1

1350 29 (737) 16 (406) 5.7 (145) 33 (838) 20 (508) 24 (610) 4 � 1

1600 33 (838) 20 (508) 6.3 (160) 37 (940) 20 (508) 24 (610) 5 � 1

2000 33 (838) 20 (508) 7.4 (188) 37 (940) 20 (508) 24 (610) 6 � 2

2500 37 (940) 24 (610) 8.7 (221) 41 (1041) 20 (508) 24 (610) 8 � 2

3000 37 (940) 24 (610) 9.7 (246) 41 (1041) 20 (508) 24 (610) 9 � 2

3200 37 (940) 24 (610) 9.7 (246) 41 (1041) 20 (508) 24 (610) 9 � 2

4000 45(1143) 28 (711) 11.9 (302) 49 (1245) 20 (508) 24 (610) 12 � 3

Copper

225 25 (635) 16 (406) 3.9 (99) 29 (737) 17 (432) 21 (533) 1 � 1

400 25 (635) 16 (406) 3.9 (99) 29 (737) 17 (432) 21 (533) 1 � 1

600 25 (635) 16 (406) 3.9 (99) 29 (737) 17 (432) 21 (533) 2 � 1

800 25 (635) 16 (406) 4.2 (107) 29 (737) 17 (432) 21 (533) 3 � 1

1000 25 (635) 16 (737) 4.2 (107) 29 (737) 18 (457) 22 (559) 4 � 1

1200 29 (737) 16 (813) 4.5 (114) 33 (838) 22 (559) 26 (660) 4 � 1

1350 29 (737) 16 (813) 4.8 (122) 33 (838) 21 (533) 25 (635) 4 � 1

1600 29 (737) 20 (813) 5.3 (135) 33 (838) 21 (533) 25 (635) 5 � 1

2000 29 (737) 20 (813) 6.1 (155) 33 (838) 20 (508) 24 (610) 6 � 2

2500 33 (838) 24 (813) 7.3 (185) 37 (940) 23 (584) 17 (432) 8 � 2

3000 33 (838) 24 (838) 7.9 (201) 37 (940) 20 (508) 24 (610) 9 � 2

3200 33 (838) 24 (838) 7.9 (201) 37 (940) 20 (508) 24 (610) 9 � 2

4000 37 (940) 28 (838) 9.4 (239) 41 (1041) 20 (508) 24 (610) 12 � 3

5000 40(1016) 34 (838) 11.7 (297) 44 (1118) 19 (483) 23 (584) 15 � 4

� #6 AWG - 350 kcmil, Cu / Al � #4 AWG - 600 kcmil, Cu / Al

17

IN-LINE DISCONNECT CUBICLESCubicles provide a means of mountingswitches or circuit breakers where powerfeeds to or pulls from the busway system.When bolted connections are preferred,cubicles may be used in place of plug-inunits. Cubicles can also be used at ampereratings that exceed standard plug-in unitratings. Modifications to cubicles can bemade in order to accommodate key inter-locks, ground fault detector systems andpower monitoring systems.

EXPANSION FITTINGSExpansion fittings accommodate for expan-sion and contraction of a busway run. In order to compensate for the difference inthe coefficient of expansion between thecopper/aluminum bus bars and thealuminum housing, an expansion fittingmust be used. Expansion fittings areinstalled in the center of long busway runs,where both ends of the run are held in permanent, fixed positions or where abusway run crosses an expansion joint

of a building. Additionally, NEMA recom-mends the use of expansion fittings whenthe run exceeds 200 ft. (608m). Expansionfittings allow for a +/- 2 in. (50.8mm)movement along the length of the buswaysystem.

In-Line Disconnect Cubicles and Expansion Fittings

Expansion Fittings, DimensionsAmpere Dimensions Inches (mm)Rating “A”Aluminum≤600 13 (330)800 13 (330)

1000 13 (330)1200 18 (457)1350 18 (457)1600 18 (457)2000 18 (457)2500 23 (584)3000 23 (584)3200 23 (584)4000 25 (635)Copper≤800 13 (330)1000 13 (330)1200 13 (330)1350 13 (330)1600 18 (457)2000 18 (457)2500 18 (457)3000 23 (584)3200 23 (584)4000 23 (584)5000 25 (635)

8.0"(203mm)

38.0"(965mm)

LC

of Joint

22.0"(559mm)

8.0"(203mm)

Lof Joint

C

CL

LC

20.0"(508mm)

A

Note: Expansion Fitting allows for

±2.0" (51mm) expansion.

�

� 24.0" (610mm)

for Isolated Ground

Expansion FittingSuffix XPFT

A

8.0"(203mm)

B

C

8.0"(203mm)

LCof Joint

of JointCL

In-Line Disconnect Cubicle

In-Line Disconnect Cubicle, DimensionsDescription of Unit Type of Disconnect Dimensions Inches (mm)

“A” “B” “C”Fusible Switch 400-600A FK Visible Blade 36 (914) 28 (711) 28 (711)

800-1200A Vacu-Break 36 (914) 36 (914) 32 (813)Molded Case JD6, LD6, MD6, ND6 36 (914) 28 (711) 28 (711)Circuit Breaker PD6, RD6 36 (914) 36 (914) 32 (813)Digital Sentron SJD6, SLD6, SMD6, SND6 36 (914) 28 (711) 28 (711)Series MCCB’s � SPD6 1600A Frame 36 (914) 36 (914) 32 (813)Power RL800 (Stationary) 36 (914) 32 (813) 28 (711)Circuit Breaker � RL800, RLF800 (Drawout) 48 (1219) 32 (813) 28 (711)

RL1600,RL2000,RL3200,RL4000(Stationary) 48 (1219) 36 (914) 32 (813)RL1600, RL2000, RLF1600 (Drawout) 48 (1219) 36 (914) 32 (813)

Bolted Pressure Switch 800A 33 (838) 36 (914) 32 (813)1200-2500A 37 (940) 40 (1016) 32 (813)3000A 37 (940) 40 (1016) 48 (1219)4000A 41 (1041) 40 (1016) 48 (1219)

� ACCESS-compatible

18

FUSED REDUCERSThe NEC (Art. 368-11) requires overcurrentprotection when busway systems arereduced in ampacity. A fused reducer isused to reduce the allowable ampere ratingin those sections of the busway that do notrequire a higher rating (i.e. at branch circuitjunctures).

NON-FUSED REDUCERSNon-fused reducers are used in conjunctionwith the following exception to the

NEC (Art. 368-11): "For industrial establish-ments only, omission of overcurrent protec-tion shall be permitted at points wherebusways are reduced in ampacity, providedthat the length of the busway having thesmaller ampacity does not exceed 50 ft.and has an ampacity of at least equal toone-third the rating or setting of theovercurrent device next back on the line,and provided that such busway is free fromcontact with combustible material." Specialjoint stack connections are provided for

non-fused reducer connections. Consult factory for specific design guidelines.

PHASE-ROTATION FITTINGSPhase-rotation fittings can be used whenthe application requires a phase rotation inthe power supply. Phase rotation fittingscan be ordered for "phase and ground","phase only" and "ground only" rotations.

Reducers and Phase Rotation Fittings

Fused Reducers, DimensionsAmpere Dimensions Inches (mm)Rating “A”Aluminum≤600 -800 -

1000 11.4 (289)1200 12.5 (318)1350 13.5 (343)1600 14.6 (372)2000 16.9 (429)2500 19.6 (498)3000 21.3 (541)3200 22.9 (582)4000 31.5 (800)Copper≤800 -1000 10.4 (264)1200 11.0 (280)1350 11.6 (296)1600 12.6 (321)2000 14.1 (359)2500 16.6 (423)3000 17.9 (455)3200 18.9 (480)4000 20.9 (531)5000 31.5 (800)

A

20.0"(508mm)

36.0"(914mm)

LCof Joint

of JointCL

20.0"(508mm)

4.5"(114mm)

1.0"(25mm)

CL

Higher Ampere Rating

Lower Ampere Rating

Fused ReducerSuffix RFRF

Phase Rotation Fittings, DimensionsAmpere Dimensions Inches (mm)Rating “A”Aluminum≤600 7.9 (200)800 8.5 (216)

1000 9.4 (239)1200 10.5 (267)1350 11.5 (293)1600 12.6 (321)2000 14.9 (376)2500 17.6 (447)3000 19.8 (503)3200 21.3 (541)4000 24.3 (617)Copper≤800 7.9 (200)1000 8.4 (213)1200 9.0 (229)1350 9.6 (245)1600 10.6 (270)2000 12.1 (308)2500 14.6 (372)3000 15.8 (402)3200 17.3 (439)4000 19.3 (490)5000 23.3 (592)

11.5"(292mm)

25.0"(635mm)

LC

9.0"(229mm)

A

(292mm)11.5"

48.0"(1219mm)

CL

CLof Joint

CLof Joint

Phase Rotation Fitting Suffix TRPG, Phase and GroundTRPO, Phase onlyTRGO, Ground only

A

B

C

N

G N

C

B

A

G

A

B

C A

B

C

A

B

C

N A

B

C

N

A

N

C

B

G

N

C

B

A

N

GN

Phase Rotation Examples

19

SERVICE HEADSService Heads are used to connect buswayto a service entrance. In the SentronBusway line, 3-single phase service headsand 3-phase service head connections areavailable. The standard service entranceconnection is the 3-phase service headwhich consists of one service head for allthree phases. 3-single phase service headsconsist of three heads – one for each phase– and may be used to meet the require-ments of certain applications. To ensureease of installation of incoming cables, bothtypes of Sentron service heads areconstructed so that the lugs face the Glasticbottom of the box. The Glastic bottomprovides insulation and protection to theincoming cables.

Service Heads

Single- and Three-Phase Service Heads, DimensionsAmpere Dimensions Inches (mm) Cable Lugs per Phase and Neutral GroundRating Single-Phase “A” Three-Phase “B” Qty. Size Lugs �Aluminum225 13 (330) 13 (330) 1 � 1400 13 (330) 13 (330) 1 � 1600 13 (330) 13 (330) 2 � 1800 13 (330) 13 (330) 3 � 1

1000 13 (330) 13 (330) 4 � 11200 18 (457) 18 (457) 4 � 11350 18 (457) 18 (457) 4 � 11600 18 (457) 18 (457) 5 � 12000 20 (508) 18 (457) 6 � 22500 27 (686) 27 (686) 8 � 23000 29 (737) 27 (686) 9 � 23200 29 (737) 27 (686) 9 � 24000 29 (737) 29 (737) 12 � 3Copper225 13 (330) 13 (330) 1 � 1400 13 (330) 13 (330) 1 � 1600 13 (330) 13 (330) 2 � 1800 13 (330) 13 (330) 3 � 1

1000 13 (330) 13 (330) 4 � 11200 13 (330) 13 (330) 4 � 11350 13 (330) 13 (330) 4 � 11600 18 (457) 18 (457) 5 � 12000 20 (508) 18 (457) 6 � 22500 20 (508) 18 (457) 8 � 23000 27 (686) 27 (686) 9 � 23200 27 (686) 27 (686) 9 � 24000 27 (686) 27 (686) 12 � 35000 29 (737) 29 (737) 15 � 4� #6 AWG - 350 kcmil, Cu / Al � #4 AWG - 600 kcmil, Cu / Al

CL

B

24.0"(610mm)

8.0"(203mm)

6.75"(171mm)

LC

CL

16.0"(406mm)

.25"(6mm)Glastic Panel

Three Single-Phase Service HeadsSuffix V1TX

Three-Phase Service HeadSuffix V3TX

(457mm)18.0"

CL CL

8.0"(203mm) (203mm)

8.0"

.25" (6mm) Glastic Panel

Single-Phase Service HeadSuffix V1TX

CL

18.0"(457mm)

8.0"(203mm)

22.0"(559mm

CL

LC

A

16.0"(406mm)

(203mm)CL

8.0"

8.5"(216mm)

13.5"(343mm)

CL

LC

34.0"(864mm)Minimum

20

HANGERSA complete offering of hangers is availableto support Sentron Busway in both verticaland horizontal applications. Standardtrapeze hangers and single drop rodhangers support Sentron Busway inhorizontal applications; both hangers aredesigned to be hung on 10 ft. (3.05m)centers, however, additional hangers maybe used if structural requirements mandate their use. The contractor mustsupply drop rods to complete assembly forboth single drop rod and trapeze hangers. Spring hangers and floor supporthangers must be used to provide securemounting of the busway run in verticalapplications. Spring hangers counter theweight of the busway on each floor andalso compensate for minimal buildingmovement and thermal expansion.Maximum distance between springhangers may not exceed 16 ft. (4.88m).When ordering 18 ft. (5.49m) floor toceiling height assemblies, intermediatesupport hangers are necessary.

Wall Mounted Hanger, Dimensions and Catalog NumbersAmpere “A” Dimensions Catalog NumberRating Inches (mm)Aluminum Busway225-1200 10.0 (254) SXWH1

1350-2000 13.5 (343) SXWH22500-3200 18.5 (470) SXWH34000 23.0 (584) SXWH4

Copper Busway225-1600 10.0 (254) SXWH1

2000-2500 13.5 (343) SXWH23000-4000 18.5 (470) SXWH35000 23.0 (584) SXWH4

B = A/2

B

DC

A

C = B - D/2 (for "D" dim. see page 33)

CL

10.0"(254mm)

CLJoint

PiercingScrew

2.0"(51mm) Min. By Others

Floor Flange(Optional)

16.0" min(406mm)

Leveling

Bolt

Jam Nut

Support

SpringHanger

Stack

Spring Hanger, RequirementsAmpere Catalog Assembly for Floor to Ceiling Height �Rating 10 ft. 12 ft. 14 ft. 16 ft. 18 ft.�Aluminum Busway225-2000 SXSH4 SXSH4 SXSH4 SXSH4 SXSH4

2500 SXSH4 SXSH4 SXSH4 SXSH6 SXSH63000 SXSH4 SXSH6 SXSH6 SXSH6 SXSH63200 SXSH4 SXSH6 SXSH6 SXSH6 SXSH64000 SXSH4 SXSH6 SXSH6 SXSH6 SXSH8Copper Busway225-1200 SXSH4 SXSH4 SXSH4 SXSH4 SXSH4

1350 SXSH4 SXSH4 SXSH4 SXSH6 SXSH61600 SXSH4 SXSH4 SXSH6 SXSH6 SXSH62000 SXSH6 SXSH6 SXSH6 SXSH6 SXSH82500 SXSH6 SXSH6 SXSH8 SXSH8 SXSH83000 SXSH6 SXSH8 SXSH8 SXSH10 SXSH103200 SXSH6 SXSH8 SXSH8 SXSH10 SXSH124000 SXSH8 SXSH8 SXSH10 SXSH12 SXSH125000 SXSH8 SXSH10 SXSH12 SXSH14 SXSH14� For height not listed, use next higher value� Additional floor support necessary for intermediate support

Structural Steel Hanger, Dimensions and Catalog NumbersAmpere “A” Dimensions Catalog NumberRating Inches (mm)Aluminum Busway225-1200 10.0 (254) SXSS1

1350-2000 13.5 (343) SXSS22500-3200 18.5 (470) SXSS34000 23.0 (584) SXSS4Copper Busway225-1600 10.0 (254) SXSS1

2000-4000 13.5 (343) SXSS25000 23.0 (584) SXSS4

A

Hangers

Trapeze Hanger, Dimensions and Catalog NumbersAmpere “A” Dimensions Catalog NumberRating Inches (mm)Aluminum Busway225-1200 10.0 (254) SXTH1

1350-3200 13.5 (343) SXTH24000 23.0 (584) SXTH4Copper Busway225-1600 10.0 (254) SXTH1

2000-2500 13.5 (343) SXTH23000-4000 18.5 (470) SXTH35000 23.0 (584) SXTH4

.50"(12mm) DiaThreaded Rod

A

.63"

(16mm)

Rods and NutsNot Included

Single Drop Rod Hanger, Catalog NumbersAmpere CatalogRating Number

Aluminum Busway Copper Busway≤600 SXDRA1 SXDRC1800 SXDRA2 SXDRC1

1000 SXDRA3 SXDRC21200 SXDRA4 SXDRC31350 SXDRA5 SXDRC41600 SXDRA6 SXDRC52000 SXDRA7 SXDRC62500 SXDRC7

.50"(12mm) DiaThreaded Rod

.50"(12mm) Nut

Note: Rod and Nut Not Included

21

21

END CLOSERSEnd closers safely terminate a busway runand protect the bus bar ends. End closersmay be removed easily in order to extend abusway run. End closers are shipped withGlastic insulation pieces, however, jointstacks and inspection covers are notincluded. To ensure proper installation referto end closure installation sheet shippedwith each end closure.

FLANGESRoof, wall and floor flanges are available forSentron Busway. When the busway runpasses thorough a roof, wall or ceiling, aflange should be used. Flanges do not offersupport to the busway, only a means ofcovering the hole created in the existingstructure. An additional sealant may berequired to meet fire codes and all otherlocal requirements; no caulking orgasketing is provided with Sentron flanges.Roof flanges provide a watertight seal foruse with IP65/ IP66 rated busway. Roofpitch must be indicated on drawings whenordering roof flanges.

End Closers and Flanges

(610mm)

Curb by(610mm)

LC

(254mm)

(406mm)16.0"

10.0"

LC

24.0"

OthersB

A24.0"

Edgewise Flatwise

Roof Pitch = 3.0"(76mm)

12.0"(305mm)

Roof FlangesSuffix GRFL

of JointLC

6.0"(152mm)

End Closers (Joint stack and covers not included) Suffix ECLS

Roof Flanges, Dimensions


Rating “A” “B”

Aluminum Busway

≤600 12 (305) 18 (457)

800 12 (305) 18 (457)

1000 12 (305) 18 (457)

1200 12 (305) 18 (457)

1350 16 (406) 22 (559)

1600 16 (406) 22 (559)

2000 16 (406) 22 (559)

2500 20.5 (521) 26.5 (673)

3000 20.5 (521) 26.5 (673)

3200 20.5 (521) 26.5 (673)

4000 25 (635) 31 (787)

Copper Busway

≤800 12 (305) 18 (457)

1000 12 (305) 18 (457)

1200 12 (305) 18 (457)

1350 12 (305) 18 (457)

1600 12 (305) 18 (457)

2000 16 (406) 22 (559)

2500 16 (406) 22 (559)

3000 20.5 (521) 26.5 (673)

3200 20.5 (521) 26.5 (673)

4000 20.5 (521) 26.5 (673)

5000 25 (635) 31 (787)

Wall, Ceiling and Floor Flanges, Dimensions


Rating “A” “B”

Aluminum Busway

≤600 11 (279) 7 (178)

800 11 (279) 7 (178)

1000 12 (305) 8 (203)

1200 13 (330) 9 (229)

1350 14 (356) 10 (254)

1600 15 (381) 11 (279)

2000 17 (432) 13 (330)

2500 20 (508) 16 (406)

3000 22 (559) 18 (457)

3200 24 (610) 20 (508)

4000 26 (660) 22 (559)

Copper Busway

≤800 10 (254) 6 (152)

1000 11 (279) 7 (178)

1200 12 (305) 8 (203)

1350 12 (305) 8 (203)

1600 13 (330) 9 (229)

2000 15 (381) 11 (279)

2500 17 (432) 13 (330)

3000 18 (457) 14 (356)

3200 19 (483) 15 (381)

4000 21 (533) 17 (432)

5000 26 (660) 22 (559)

(16mm).63"

B

A

A/2B/2

10.0"(254mm)

.63"(16mm)

3.25"(83mm)

.37"(9.5mm)x

.63"(16mm)Slot Typ

7.0"(178mm)

Center Slots Req'dOnly for Busway w/Two Bars Per Pole

LC

OpeningCut-out

Wall, Ceiling and Floor FlangesSuffix GWFL

22

Flanged End Bus Bar Drilling Pattern (NEMA)�

(Same pattern for 2 bus bars per pole, see figure 2 above.)

� Other drilling patterns are available and must be specified at order entry

FLANGED ENDSFlanged ends provide a direct connection tolow voltage switchgear, switchboards,motor control centers, large power panels, and other electrical distributionequipment. Flanged ends are shipped withone joint stack assembly. The switchgearmanufacture supplies lugs and mountinghardware. See illustration for flanged enddrilling patterns.

Flanged Ends

Flanged EndSuffix FRND

Flanged End, DimensionsAmpere Dimensions Inches (mm)Rating “W” Figure No.Aluminum≤600 1.75 (44.4) 1800 2.38 (60.5) 1

1000 3.25 (82.6) 11200 4.38 (111.3) 11350 5.38 (136.7) 11600 6.50 (165.1) 12000 8.75 (222.3) 12500 5.63 (143.0) 23000 6.75 (171.5) 23200 6.75 (171.5) 24000 9.00 (228.6) 2Copper≤800 1.75 (44.4) 11000 2.25 (57.2) 11200 2.88 (73.2) 11350 3.50 (88.9) 11600 4.50 (114.3) 12000 6.00 (152.4) 12500 8.50 (215.9) 13000 4.75 (120.7) 23200 4.75 (120.7) 24000 6.50 (165.1) 25000 8.50 (215.9) 2

.63"(16mm)

CL

W WW W W

CL CL CL CL

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

.88"(22.4mm)

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

1.75"(44.5mm)

For 1.75", 2.25"2.38", & 2.88"

Bars

For 3.25", 3.50",4.38", 4.50", &

4.75" Bars

For 5.38", 5.63",6.00", 6.50", &

6.75" Bars

For 8.50", &8.75" Bars

For 9.00" Bars

.88"(22.4mm).563"(14.3mm)

Dia. Typ

CL

8.0"(203mm)Stack

Joint

WW

W

Ref

LC

Figure 1 Figure 2

.18"(5mm)

Case & BarsOne bar per pole

LCCase & Bars

Two bars per pole

CLJointStack

8.0"(203mm)

Ref

CLBars

N

(102mm)4.0"

ISOL.

Ground

(87mm)3.44"

CØ BØ AØ

2.0"(51mm)

CL

Bar

PE

JointCL

CLBars

23

23

1.50"(38mm)

CL CL

1.05"(27mm)

.44"(11mm)x.88"(22mm)

1.75"(44mm)

1.05"(27mm)

(38mm)1.50"

2.25"(57mm)

4.5"(114mm)

1.75"(44mm)

Flanged End, DimensionsAmpere Dimensions Inches (mm)Rating Ref. Bar Width Figure No. “A” “B” “C” “D” “E” “F”Aluminum≤600 2.38 (60.5) 1 10.00 (254) 8.00 (203) 4.38 (111) 1.94 (49) 3.88 (99) -800 2.38 (60.5) 1 10.00 (254) 8.00 (203) 4.38 (111) 1.94 (49) 3.88 (99) -

1000 3.25 (82.6) 2 10.00 (254) 8.00 (203) 4.38 (111) 1.03 (26) 2.06 (52) -1200 4.38 (111.3) 2 15.50 (395) 13.50 (343) 7.13 (181) 1.60 (41) 3.19 (81) -1350 5.38 (136.7) 2 15.50 (395) 13.50 (343) 7.13 (181) 2.10 (53) 4.19 (106) -1600 6.50 (165.1) 2 15.50 (395) 13.50 (343) 7.13 (181) 2.66 (67) 5.31 (135) -2000 8.75 (222.3) 2 15.50 (395) 13.50 (343) 7.13 (131) 3.78 (96) 7.56 (192) -2500 5.63 (143.0) 3 20.00 (508) 18.00 (457) 4.50 (114) 0.68 (17) 1.37 (36) 4.44 (113)3000 6.75 (171.5) 3 20.00 (508) 18.00 (457) 4.50 (114) 0.68 (17) 1.37 (36) 5.56 (141)3200 7.50 (190.5) 3 24.00 (610) 22.00 (569) 5.50 (140) 0.68 (17) 1.37 (36) 6.32 (161)4000 9.00 (228.6) 3 24.00 (610) 22.00 (569) 5.50 (140) 0.68 (17) 1.37 (36) 7.81 (198)Copper≤800 1.75 (44.4) 1 10.00 (254) 8.00 (203) 4.38 (111) 1.63 (41) 3.25 (83) -1000 2.25 (57.2) 1 10.00 (254) 8.00 (203) 4.38 (111) 1.88 (48) 3.75 (95) -1200 2.88 (73.2) 2 10.00 (254) 8.00 (203) 4.38 (111) 0.85 (21) 1.69 (43) -1350 3.50 (88.9) 2 10.00 (254) 8.00 (203) 4.38 (111) 1.16 (29) 2.31 (59) -1600 4.50 (114.3) 2 15.50 (395) 13.50 (343) 7.13 (181) 1.66 (42) 3.31 (84) -2000 6.00 (152.4) 2 15.50 (395) 13.50 (343) 7.13 (181) 2.41 (61) 4.81 (122) -2500 8.50 (215.9) 2 15.50 (395) 13.50 (343) 7.13 (181) 3.66 (93) 7.31 (186) -3000 4.75 (120.7) 3 20.00 (508) 18.00 (457) 4.50 (114) 0.68 (17) 1.37 (36) 3.56 (90)3200 5.50 (139.7) 3 20.00 (508) 18.00 (457) 4.50 (114) 0.68 (17) 1.37 (36) 4.32 (110)4000 6.50 (165.1) 3 20.00 (508) 18.00 (457) 4.50 (114) 0.68 (17) 1.37 (36) 5.31 (135)5000 8.50 (215.9) 3 24.00 (610) 22.00 (569) 5.50 (140) 0.68 (17) 1.37 (36) 7.31 (186)

OPENING CUTOUTDENOTEDASHED LINES

B/2

B

A

.63"(16 mm)

(79.5mm)3.13"

CLCASE

.375"(9.5 mm)

D

E

C

CONNECTIONGROUND BAR

1.5"(38 mm)

.44"(11mm)

6.5"(165mm)

2.0"(51mm)

Dia

(16 mm).63"

.63"(16 mm)

15.0"(381mm)

13.0"(330mm

6.13"(156mm)

6.12"(155mm)

LC

CASE

1

1

1


B/2

B

A

.63"(16 mm)

(79.5mm)3.13"

CLCASE

.375"(9.5 mm)

D

E

C

CONNECTIONGROUND BAR

1.5"(38 mm)

.44"(11mm)

6.5"(165mm)

2.0"(51mm)

Dia

(16 mm).63"

.63"(16 mm)

15.0"(381mm)

13.0"(330mm)

6.13"(156mm)

6.12"(155mm)

LC

CASE

1

1

1


A

.63"(16 mm)

(79.5mm)3.13"

CLCASE

.375"(9.5 mm)

D

E

Integral/InternalGRD Bar Drilling

.44"(11mm)

6.5"(165mm)

2.0"(51mm)

Dia

(16 mm).63"

.63"(16 mm) LC

CASE

B/2

B

C

F F

1.5"

13.0"(330mm)

15.0"(381mm)

6.12"(155mm)

(38 mm) 1

1

6.13"(156mm) 1

1 Add 4.0" (102mm) for isolated ground applications

Figure 1

Figure 2

Figure 3

Internal Ground Bus Drilling Detail

24

PANELBOARDS AND METER CENTERMODULESMeter center modules provide a quick and convenient method of connecting tometering devices for both commercial and residential applications.

Meter center modules connect at the side of abusway run to special joint stacks; thesespecial joints can be added to existing buswayto accommodate meter center moduleconnections. When using multiple meteringstacks, main disconnects are available if thesystem reaches the 6 circuit rule (see meteringbulletin for further information).

Panelboards are installed at special engineeredjoint stacks consult factory for dimensions.

Panelboards and Meter Center Modules

Wall MeterModules

MeterModules

3.0"(76mm)

Min Recommended

A

B

C

N

orA

N

C

BBusway

Phasing is

Mandatory

Busway Riser

Main Disconnect

(Switch Breaker)

B

A

C

Dim. Varies

Depending

on Type of

Unit Used

as a Main

CL of Meter Center

Connecting

Joint-Stack

A

B

8'8"

(2642mm)

8'8"

(2642mm)

D

200A 100/125A

4'0"

(1219mm)

4'8"

(1422mm)

4'0"

(1219mm)

3'8"

(1118mm)

CL

LC

LC

LC

Nameplate

of Joint-Stacks for

Busway & Meter Cente

Elevation View

9.0"

(229mm)

C

C

Joint

Stacks6'6"(1981mm)

Max

Dimensional Data Required

Dimensions Inches (mm)

“A” Distance between floor and bottom of meter center as required by the customer.

“B” Dimension from bottom of meter center to centerline of meter center joint connection stack:100-125A Panel, B = 16.5 (419)200A Panel, B = 22.0 (559)

“C” Equals “A” plus “B”, Minimum 16.0 (406)

“D” Individual meter center height.Consult Modular Metering application information.

25

9.0"(229mm)

MeterModule

BuswaySection

Joint-StackSwitchMain

Top-off

JointStack

Main Disconnect Meter Module

Side Mounted

Side mount Panelboard

Stack

Joint-StackTap-off

Joint

ModuleMeter 9.0"

(229mm)

BuswaySection

Meter Center module

Sentron Busway, MCCB Power Take Offs with Metering Connections, Dimensions, in. (mm)Ampere Busway LD6 Breaker (400-600A) ND6 Breaker (800-1200A)Rating Width W A B C A B CAluminum≤600 3.9 (99) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)800 4.6 (117) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)

1000 5.4 (137) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1200 6.6 (168) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1350 7.6 (193) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1600 8.7 (221) 32 (813) 24 (610) 20 (490) 37 (940) 26 (660) 20 (490)2000 10.9 (277) 32 (813) 24 (610) 20 (490) 37 (940) 26 (660) 20 (490)2500 13.7 (348) 32 (813) 24 (610) 23.5 (597) 37 (940) 26 (660) 23.5 (597)3000 15.8 (401) 32 (813) 24 (610) 23.5 (597) 37 (940) 26 (660) 23.5 (597)3200 17.3 (439) 32 (813) 24 (610) 23.5 (597) 37 (940) 26 (660) 28 (711)4000 20.3 (516) 32 (813) 24 (610) 28 (711) 37 (940) 26 (660) 28 (711)Copper≤800 3.9 (99) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1000 4.4 (112) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1200 5.1 (130) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1350 5.7 (145) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)1600 6.7 (170) 32 (813) 24 (610) 16 (406) 37 (940) 26 (660) 16 (406)2000 8.2 (208) 32 (813) 24 (610) 20 (490) 37 (940) 26 (660) 20 (490)2500 10.7 (272) 32 (813) 24 (610) 20 (490) 37 (940) 26 (660) 20 (490)3000 11.8 (300) 32 (813) 24 (610) 20 (490) 37 (940) 26 (660) 20 (490)3200 13.3 (335) 32 (813) 24 (610) 20 (490) 37 (940) 26 (660) 23.5 (597)4000 15.3 (389) 32 (813) 24 (610) 23.5 (597) 37 (940) 26 (660) 23.5 (597)5000 19.3 (491) 32 (813) 24 (610) 28 (711) 37 (940) 26 (660) 28 (711)

• 600-1200 Amp (L&N Frames) space saving design for small electrical closets• Factory installed Circuit Breaker integrated into Busway section• Meter Centers may be attached to the left, right or both sides

DANGER

Hazardous Voltage.

supplying

Will cause death,severe

property damage.personal injury or

Turn off power

Made in USATucker,GA 30084

Siemens Energy & Automation,Inc.

working inside.this equipment before

Description

SIEMENSI-T-E Metering

Phase

Amps

Cat No.

Wire

Volts A.C.

DANGER

Hazardous Voltage.Will cause death,severe

property damage.personal injury or

supplying Turn off power

Made in USATucker,GA 30084

Siemens Energy & Automation,Inc.

working inside.this equipment before

SIEMENS

Description

I-T-E Metering

Wire Phase

Volts A.C. Amps

Cat No.

ON

LC

NCBA

NCBA

OF BUSWAY

B

A

W

C3.00(76mm)

1.75(44mm)

L OR N FRAMEBREAKER

BSPECIFY LEFT, RIGHT OR BOTH

7.25 (184mm)

3.00(76mm)

7.25 (184mm)

26

S L E C S 2 0

Plug Type SL = Sentron IICircuit Breaker Frame E = 15-125A F = 70-250A J = 200-400A L = 250-600A M = 500-800A Enclosure Type C = Circuit Breaker Enclosure L = Current Limiting EnclosureCradle Designation S = 3Ø3W, 3Ø4W>400A 200%N>200A onlyConfiguration 3 = 3Ø3W 4 = 3Ø4W 5 = 3Ø4W 200% neutral ��Breaker Voltage 2 = 240V � 4 = 480V � 6 = 600VAmpere Trip RatingIP Rating 0 = IP40 4 = IP55Ground Designation G = Internal Ground IG = Isolated GroundCircuit Breaker Frame Identification

1 5 00 G E D 2

Sentron II Bus Plugs - Circuit Breaker (Installed)

S L I D 2 1 0

Plug Type SL = Sentron IIIndustrial Duty Fusible Switch IDCradle Designation S = 3Ø3W, 3Ø4W>400A 200%N>200A onlyConfiguration 3 = 3Ø3W 4 = 3Ø4W 5 = 3Ø4W 200% neutral��Breaker Voltage 2 = 240V 6 = 600VAmpere Trip Rating 1 = 30A 2 = 60A 3 = 100A 4 = 200A 5 = 400A � 6 = 600AIP Rating 0 = IP40 4 = IP55Ground Designation G = Internal Ground IG = Isolated Ground

GS

Sentron II Bus Plugs - Fusible� The S digit is only used on 3- and 4-wire (100%N) plugs that are greater than 400A and 200%N plugs greater than 200A. Lower amperage plugs do not require this digit. (Ex. SLID3610, SLEC32060ED2)� The G and IG digits are used to specify internal and isolated ground respectively. Integral (housing) ground plugs do not require this digit. (Ex. SLID3610, SLEC360150ED6)� Available through 400A only.� Available with E, F and J Frame breakers only.� Greater than 200A requires Dual Outlet Enclosure.� Available with ED2 breakers only.� Available with ED4 and HED4 breakers only.� For 400A Compact, add "CMP" to the end of catalog number.

3

3

�

�

�

�

Sentron Bus Plug Catalog Numbering System

27

Catalog Numbering System 26

Contents 27

Circuit Breaker Bus Plugs 28-29

Fusible Bus Plugs 30-31

Wall Clearances and Dimensions 32-33

Busway System Application Requirements 34-36

Sentron II Bus Plugs

28

Sentron II Circuit Breaker Bus Plugs featurean easy to read "position indicator" label,designed to be visible from the shop floor,that clearly marks whether the bus plug isin the "Off", "On", or "Tripped" position.Circuit breaker bus plugs are available inframe sizes from 125 amps to 800 ampswith interrupting ratings of standard, highor current limiting.

Circuit breaker bus plugs will be shippedcomplete with factory installed circuitbreakers. The following Siemens moldedcase circuit breaker frames may be orderedwith Sentron Circuit Breaker Bus Plugs:ED2, ED4, ED6, HED4, HHED6, CED6FXD6, FD6, HFD6, CFD6JXD6, JD6, HJD6, CJD6LXD6, HLD6, CLD6MXD6, HMD6, CMD6Refer to the "How to Build A CatalogNumber" diagram on page 26 for easyordering instructions.

Circuit Breaker Bus Plugs

Standard Circuit Breakers, Bus Plug Ratings

Plug-In Units Circuit Breaker Frame Size Max. Short Circuit Ingress Protection

Series Max. Rating Current Rating Rating

100KA, 240V, 3 ph

SLEC 125A, 600V E Frame 65KA, 480V, 3 ph IP40, IP55

25KA, 600V, 3 ph

100KA, 240V, 3 ph

SLFC 250A, 600V F Frame 65KA, 480V, 3 ph IP40, IP55

25KA, 600V, 3 ph

100KA, 240V, 3 ph

SLJC 400A, 600V J Frame 65KA, 480V, 3 ph IP40, IP55

35KA, 600V, 3 ph

100KA, 240V, 3 ph

SLLCS� 600A, 600V L Frame 65KA, 480V, 3 ph IP40, IP55

35KA, 600V, 3 ph

100KA, 240V, 3 ph

SLMCS� 800A, 600V M Frame 65KA, 480V, 3 ph IP40, IP55

50KA, 600V, 3 ph

Current Limiting Circuit Breakers, Bus Plug Ratings

200KA, 240V, 3 ph

SLEL 125A, 600V CED Frame 200KA, 480V, 3 ph IP40, IP55

100KA, 600V, 3 ph

200KA, 240V, 3 ph

SLFL 250A, 600V CFD Frame 200KA, 480V, 3 ph IP40, IP55

100KA, 600V, 3 ph

200KA, 240V, 3 ph

SLJL 400A, 600V CJD Frame 150KA, 480V, 3 ph IP40, IP55

100KA, 600V, 3 ph

200KA, 240V, 3 ph

SLLLS� 600A, 600V CLD Frame 150KA, 480V, 3 ph IP40, IP55

100KA, 600V, 3 ph

200KA, 240V, 3 ph

SLMLS� 800A, 600V CMD Frame 100KA, 480V, 3 ph IP40, IP55

65KA, 600V, 3 ph

� SLLLS, SLMLS, SLLCS and SLMCS fit Sentron Busway only

29

CL

26.29"(668mm)

C

F

E

B

A

9.39"

(238mm)

Duct Opening

Circuit Breaker Bus Plugs, Dimensions and Weights (Enclosure only)

Ampere Dimensions Inches (mm) Weight

Rating “A” “B” “C” “D” max. “E” “F” “J” “K” lbs (kg)

125 15.25 (387) 10.25 (260) 9.25 (235) 4.75 (121) 2.50 (64) 2.50 (64) 3.50 (89) 2.25 (57) 35 (15.87)

250 20.25 (514) 10.25 (260) 9.25 (235) 4.75 (121) 2.50 (64) 2.50 (64) 3.25 (83) 3.25 (83) 50 (22.68)

400 21.75 (552) 16.75 (425) 11.25 (286) 4.75 (121) 5.75 (146) 5.75 (146) 4.00 (102) 3.25 (83) 83 (37.64)

A

C

B

B

F E

D max.A

1.75" (44mm)

.875" (22mm)

CL

7.75" (197mm)

J

K

Circuit Breaker Bus Plugs – Sentron I, Dimensions and Weights (Enclosure only)


Rating “A” “B” “C” “D”max. “E” “F” lbs (kg)

600 37.00 (940) 17.78 (452) 11.50 (292) 3.25 (83) 3.75 (95) 9.50 (241) 130 (58.97)

800 37.00 (940) 19.28 (490) 15.75 (400) 3.25 (83) 3.75 (95) 11.00 (279) 177 (80.29)

Circuit Breaker Bus Plugs, Load Lugs and Knockouts

Frame Ground Lug Neutral Lug Phase Lug Knockout Sizes

Size Cu/Al Cu/Al Cu/Al In. (mm)

E Frame #14-2 #14-2 #14-1/0 ⁷⁄₈ (22), 1¹⁄₈ (29), 1³⁄₈ (35), 1³⁄₄ (44), 2 (51), 2¹⁄₂ (64)

F Frame #14-2 #6-350 kcmil #6-350 kcmil 2 (51), 2¹⁄₂ (64), 3 (76), 3⁵⁄₈ (92), 4¹⁄₈ (105)

J Frame #14-2 (2) #4-500 kcmil (2) 3/0-500 kcmil ⁷⁄₈ (22), 1¹⁄₈ (29), Pilot

30

Sentron II Fusible Bus Plugs are available in240V and 600V, 30, 60, 100, 200, 400, and600 amp frames. An optional compactversion of the 400 amp bus plug may beordered, allowing five bus plugs to fit onone side of a 10ft. (30.5m) busway section.Due to location of the conduit knockoutsthis is recommended primarily forhorizontal applications. Refer to dimen-sional diagrams for more specific designinformation. Sentron Fusible Bus Plugs aremanufactured with Siemens switches thatfeature visible blade technology and a200kA short circuit rating. Fusible bus plugsare compatible with H, R, T, K, J, and B.S.fuses. (Fuses are not included with busplugs.) An easy to read "position indicator"label, designed to be visible from the shopfloor, clearly marks whether the bus plug isin the "On" or "Off" position. All lugs have atemperature rating of 60/75° C.

Refer to the "How to Build a CatalogNumber" diagram on page 26 for easyordering instructions.

Fusible Bus Plugs

Standard Fusible Bus Plug Ratings (IP40, IP55)

Plug-In Units Fused Sw. Fused Sw. Fuse Fuse Kits Max. Short Circuit

Series Max. Rating Series Class R Fuse Kit T Fuse Kit J Fuse Kit Current Rating

SLID_21 30A, 240V MCS603 H, K, R, J, B.S. SLR2030 - - 200KA, 240V, 3-ph




SLID_23 100A, 240V MCS610 H, K, R, J, T, B.S. SLR2100 SLT2100 - 200KA, 240V, 3-ph


SLID_24 200A, 240V MCS620 H, K, R, J, T, B.S. SLR2200 SLT2200 � 200KA, 240V, 3-ph

SLID_64 200A, 600V MCS620 H, K, R, J, T, B.S. SLR6200 SLT6200 � 200KA, 600V, 3-ph



SLID_25__CMP 400A CMP, 240V MCS640 H, K, R, J, T, B.S. SLR2400 SLT2400 - 200KA, 240V, 3-ph

SLID_65__CMP 400A CMP, 600V MCS640 H, K, R, J, T, B.S. SLR6400 SLT6400 - 200KA, 600V, 3-ph

SLIDS_26 600A, 240V MCS660 H, K, R, J, T, B.S. SLR2600 SLT2600 SLJ2600 200KA, 240V, 3-ph

SLIDS_66 600A, 600V MCS660 H, K, R, J, T, B.S. SLR6600 SLT6600 SLJ6600 200KA, 600V, 3-ph

� Relocate Load Base

Standard Fusible Bus Plug Horsepower Ratings

Plug-In Units Amp 240V, 1-Phase 240V, 3-Phase 240V DC 480V, 3-Phase 600V, 3-Phase

Series Rating Std. Max. Std. Max. Std. Std. Max. Std. Max.

SLID_21 30A 1.5 3.0 3.0 7.5 5.0 - - - -

SLID_22 60A 3.0 10.0 7.5 15.0 10.0 - - - -

SLID_23 100A 7.5 15.0 15.0 30.0 20.0 - - - -

SLID_24 200A 15.0 - 25.0 60.0 40.0 - - - -

SLID_25 400A - - 50.0 125.0 50.0 - - - -

SLIDS_26 600A - - 75.0 200.0 - - - - -

SLID_61 30A - - - - 5.0 5.0 15.0 7.5 20.0

SLID_62 60A - - - - 10.0 15.0 30.0 15.0 50.0

SLID_63 100A - - - - 20.0 25.0 60.0 30.0 75.0

SLID_64 200A - - - - 40.0 50.0 125.0 60.0 150.0

SLID_65 400A - - - - 50.0 100.0 250.0 125.0 350.0

SLIDS_66 600A - - - - - 150.0 400.0 200.0 500.0

31

Fusible Bus Plugs, Dimensions and Weights (Enclosure only)


Rating “A” “B” “C” “D” max. “E” “F” “G” “J1” “J2” “K1” “K2” “L” lbs (kg)

30 15.25 (387) 10.25 (260) 9.25 (235) 4.75 (121) 2.50 (64) 2.50 (64) - 3.50 (89) - 2.25 (57) - - 35.0 (15.87)

60 15.25 (387) 10.25 (260) 9.25 (235) 4.75 (121) 2.50 (64) 2.50 (64) - 3.50 (89) - 2.25 (57) - - 35.0 (15.87)

100 20.25 (514) 10.25 (260) 9.25 (235) 4.75 (121) 2.50 (64) 2.50 (64) - 3.25 (83) - 3.00 (76) - - 43.5 (19.73)

200 21.75 (552) 16.75 (425) 11.25 (286) 4.75 (121) 5.75 (146) 5.75 (146) - 4.00 (102) 7.00 (178) 3.25 (83) 7.75 (197) - 66.0 (29.93)

400� 39.25 (997) 16.75 (425) 15.25 (387) 2.50 (64) 5.75 (146) 5.75 (146) 26.50 (673) - - - - 18.50 (470) 145.0 (65.77)

400 CMP 21.75 (552) 16.75 (425) 15.25 (387) 4.75 (121) 5.75 (146) 5.75 (146) - 10.75 (273) 3.50 (89) - 18.50 (470) 98.0 (44.45)

600� 39.25 (997) 16.75 (425) 15.25 (387) 2.50 (64) 5.75 (146) 5.75 (146) 26.50 (673) - - - - 19.75 (502) 195.0 (88.45)

� See split cover drawing below

A

C

B

F E

D A

1.75" (44mm)

.875" (22mm)

CL

7.75" (197mm)

J1

K1

A

C

G

L

1.75" (44mm)

Split CoverHinge

J1

K1

J2

K2

B

B

Fusible Switch Plugs, Load Lugs and Knockouts

Ampere Ground Lug Neutral Lug Phase Lug Knockout sizes

Rating Cu/Al Cu/Al Cu/Al In. (mm)

30/60 #14-2 #14-2 #14-1/0 ⁷⁄₈ (22), 1¹⁄₈ (29), 1³⁄₈ (35), 1³⁄₄ (44), 2 (51), 2¹⁄₂ (64)

100 #14-2 #14-2 #14-1/0 ⁷⁄₈ (22), 1¹⁄₈ (29), 1³⁄₈ (35), 1³⁄₄ (44), 2 (51), 2¹⁄₂ (64)

200 #14-2 #6-350 kcmil #6-350 kcmil 2 (51), 2¹⁄₂ (64), 3 (76), 3⁵⁄₈ (92), 4¹⁄₈ (105)

400 #6-250 1/0-600 kcmil or (2) 1/0 250 kcmil 1/0-600 kcmil or (2) 1/0 250 kcmil ⁷⁄₈ (22), 1¹⁄₈ (29), Pilot

400CMP #6-250 1/0-500 kcmil or (2) 1/0 250 kcmil 1/0-500 kcmil or (2) 1/0 250 kcmil ⁷⁄₈ (22), 1¹⁄₈ (29), Pilot

600 #6-250 1/0-600 kcmil or (2) 1/0 250 kcmil 1/0-600 kcmil or (2) 1/0 250 kcmil ⁷⁄₈ (22), 1¹⁄₈ (29), Pilot

32

Sentron II Wall Clearance and Bus Plug Dimensions

Plan View

(Note Phasing)

LOAD

G

Plug w/ Load Side Up

BA

CN

5.

7.75"(197mm)

F

E

C

P

NO

TE:

F

E

H

G

A

B

LOADSIDE UP

Sentron

Busw

ay

5.00"(127mm)

A

K1

J1J2

K2

LOADSIDE UP

LINE

LC

D

B

HWIDTHCASE

POINTE

9.39"(238mm)

30A-400A 600A and 800ACradle Mounted

33

Sentron II Wall Clearance and Bus Plug Dimensions, in. (mm)Dim. Circuit Breaker Plugs Sentron II Fusible Switch Plugs Sentron IILegend No Cradle Cradle No cradle Cradle

E Frame F Frame � J Frame � L Frame M Frame 30/60 100 200 400 � 400 � 600Std. Current Std. Current Std. Current Std. Current Std. Current Switch Switch Switch Switch Compact Switch

Limiting Limiting Limiting Limiting Limiting Switch

A 17.00 22.00 22.00 27.00 23.50 30.50 41.50 41.50 41.50 41.50 17.00 22.00 23.50 41.00 23.25 41.50(432) (559) (559) (686) (597) (775) (1054) (1054) (1054) (1054) (432) (559) (597) (1041) (591) (1054)

B 10.25 10.25 10.25 10.25 16.75 16.75 19.75 19.75 19.75 19.75 10.25 10.25 16.75 16.75 16.75 19.75(260) (260) (260) (260) (425) (425) (502) (502) (502) (502) (260) (260) (425) (425) � (425) � (502)

C 9.25 9.25 9.25 9.25 11.25 11.25 15.25 15.25 15.25 15.25 9.25 9.25 11.25 15.25 15.75 15.25(235) (235) (235) (235) (286) (286) (387) (387) (387) (387) (235) (235) (286) (387) (400) (387)

D 12.25 12.25 12.25 12.25 18.75 18.75 20.00 20.00 20.00 20.00 12.25 12.25 18.75 19.25 18.25 20.00(311) (311) (311) (311) (476) (476) (508) (508) (508) (508) (311) (311) (476) (489) (464) (508)

E 2.50 2.50 2.50 2.50 5.75 5.75 7.75 7.75 7.75 7.75 2.50 2.50 5.75 5.75 5.75 8.00(64) (64) (64) (64) (146) (146) (197) (197) (197) (197) (64) (64) (146) (146) � (146) � (203)

F 2.50 2.50 2.50 2.50 2.75 2.75 7.00 7.00 7.00 7.00 2.50 2.50 5.75 5.75 5.75 8.25(64) (64) (64) (64) (146) (146) (178) (178) (178) (178) (64) (64) (146) (146) � (146) � (210)

G 26.00 31.00 31.00 36.00 34.50 41.50 41.50 41.50 41.50 41.50 26.00 31.00 34.50 42.00 36.50 41.25(660) (787) (787) (914) (876) (1054) (1054) (1054) (1054) (1054) (660) (787) (876) (1067) (927) (1054)

H 14.25 14.25 14.25 14.25 16.50 16.50 17.50 17.50 17.50 17.50 14.25 14.25 16.50 18.00 18.00 17.50(362) (362) (362) (362) (419) (419) (445) (445) (445) (445) (362) (362) (419) (457) (457) (445)

J1 3.50 3.50 3.25 3.25 4.00 4.00 - - - - 3.50 3.25 4.00 - 10.75 -(89) (89) (83) (83) (102) (102) - - - - (89) (83) (102) - (273) � -

J2 - - - - - - - - - - - - 7.00 - - -- - - - - - - - - - - - (178) - - -

K1 2.25 2.25 3.25 3.25 3.25 3.25 - - - - 2.25 3.00 3.25 - 3.50 -(57) (57) (83) (83) (83) (83) - - - - (57) (76) (83) - (89) � -

K2 - - - - - - - - - - - - 7.75 - - -- - - - - - - - - - - - (197) - - -

Legend:A= Length of enclosure including handle � Add 1.78 in. (45mm) to include height of box aux. mtg. flangesB= Height of enclosure � Add .89 in. (23mm) to include box aux. mtg. flange heightC= Depth of enclosure � Add 2.00 in. (51mm) to include height of box aux. mtg. flangesD= Height of enclosure including optional handle location � Add 1.00 in. (25mm) to include box aux. mtg. flange heightE= Extension of plug above top of busway � Knockout only on pointer sideF= Extension of plug below bottom of busway � 200%N ApplicationsG= Cover (depth) clearance for enclosure - for F-Frame Rated ≤200A use L-Frame Dims.H= Depth of enclosure from handle to edge of busway - for J-Frame Rated ≤400A use L-Frame Dims.J= Knockout/ pilot hole location (horizontal) - for 400A Fusible switch use 600A Switch Dims.K= Knockout/ pilot hole location (vertical) � Dual handle placement shown for reference.

INSTALLATIONIn preparation for installation of yourbusway system, it is important to familiarizeyourself with the following installation publi-cations:

• General Instructions For Handling, Installation, Operation and Maintenance of Busway Rated 600 volts or Less (NEMA Standards Publication BU1).

• Storage, Installation and Maintenance Instructions for Sentron Busway (31-9918-01)

These publications should be read throughthoroughly and used as reference duringinstallation to ensure proper installationprocedures. All equipment should beinspected upon delivery. If the busway is notinstalled immediately, it should be stored ina clean, dry location. Factory supplied recorddrawings as well as installation tools shouldbe accessible in preparation for installation.

UL 1479 FIRE RATED INSTALLATIONSSentron Busway has been tested in accor-dance with UL 1479 and offers a certifiedtwo hour fire rating for gypsum wallboardconstruction, and a three hour fire ratingfor concrete slab or block penetrations.These ratings were achieved using standardbusway installed with SpecSeal® sealantfrom Specified Technologies Inc. The SpecSeal® fire stop system providessuperior performance at the industry’slowest installed cost. Sentron is the firstbusway system to achieve a fire rating forgypsum wallboard construction.

MEASURINGCritical to the success of any busway installa-tion is the layout and accurate measuring ofthe busway. First and foremost:

Select a route for your busway that willrequire the fewest fittings and themaximum number of 10’ (3.05m) sections.It is important that the busway system bedesigned to meet the requirements of theNational Electric Code, Article 368.There are a number of techniques that maybe used to ensure an accurate measurementbefore purchasing and installing the busway. The following tools will berequired during layout and measuring:• 100’ (30.48m) tape measure• Measuring Stick• Chalkline• Plumb Bob• Marker(A laser distance measuring device may beused to speed the measuring process).

34

Installation and Application Information

6.0"(152mm)

4.0"(102mm)

6.0"(152mm)

(102mm)4.0"

Minimal ClearancesMinimum clearances for installing feeder busway areshown. Additional clearance may be required for plug-in devices larger than 100A fusible and 250A circuitbreaker. See Wall Clearance and Bus Plug Dimensions,pages 32 and 33.

SpecSealR

Sealant

Two Hour Fire RatingGypsum Wallboard

Three Hour Fire RatingConcrete Floor Slab

35

Recommended Measurement Steps1. Using systems requirements for

amperage, voltage, and conductors, determine the physical size of the busway. This is important when setting minimum clearances from walls, columns, ceilings and other obstructions.See page 34 for minimal clearances

2. Prior to any layout, review the complete area to determine the best location for the run. Special attention needs to be given to existing equipment such as plumbing, HVAC, steel columns, beams and permanent structures.

3. Measure all dimensions from fixed points such as columns, walls, floors and ceilings.

4. Make a preliminary sketch showing proposed busway routing, elevations and obstructions. Be sure to show all floor and wall locations including thickness.

5. Where plug in devices are being used, be sure to allow for proper operation clearances. See dimensional requirementsshown in the bus plug section of this publication.

MAINTENANCEIn order to maintain system performance, itis necessary to perform regular maintenanceon your busway system. Siemens Storage,Installation and Maintenance Instructions,and NEMA Publication BU1.1 should beused as a guide to proper maintenanceprocedures. Routine maintenance of yourbusway system will increase its life andperformance.

SPECIALSSiemens offers a variety of custom designsthat allow you to meet your specific jobrequirements. From custom paint colors tounique engineered equipment connections -–We Can Do That! Consult your localSiemens sales office for details on custompricing and ordering.

PaintSentron Busway products have a protectivefinish of ANSI 61 gray (standard) polyesterurethane powder paint. The paint is electro-statically applied to all housing surfaces.Colors other than ANSI 61 gray may bespecial ordered.

Low Current Density BuswaySentron Busway with copper may beordered as 1000 amp/in. Conversion is asfollows:

Required Equivalent EquivalentM or L Rating Standard Standard

Cu Rating Al Rating225 600 400400 800 800600 1200 1000800 1350 1200

1000 1600 13501200 2000 16001350 2000 20001600 � 20002000 2500 25002500 4000 30003000 4000 40003200 4000 40004000 5000 -“L” Rating = 750 A/in2 Aluminum“M” Rating = 1000A/in2 Copper� 1600 M rated is dedicated offering

Connecting To Existing EquipmentDo you have existing power distributionequipment (non-Sentron) that you wouldlike to run Sentron Busway to or from?Siemens can engineer special connectionpieces that will allow you to connectSentron Busway quickly and efficiently. Transformer ConnectionsSiemens can connect Sentron Busway toalmost any transformer. All you need to dois to provide complete drawings of trans-former secondary connections with detaileddrilling pattern and phasing information toyour local Siemens sales engineer and theycan order you a custom designed connec-tion piece.

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APPLICATIONS200% Neutral OptionPower System Harmonics are created bynumerous types of non-linear loads whichare often very high in harmonic content.The harmonics generated create problemsin electrical systems and equipment. Thepresence of non-linear loads can result inoverheated neutrals and lead to deteriora-tion of equipment performance and areduced equipment life cycle. In order toprevent such problems from occurring, theComputer and Business EquipmentManufacturers Association (CBEMA) recom-mends that neutrals be oversized to at least173% of the ampacity of the phase conduc-tors to prevent problems. Sentron Buswayoffer two fully rated bus bars, thereforeproviding twice the current carrying surfaceas the phase bars. Each neutral bar is platedwith the same tin plating and insulated withthe same electrostatically applied epoxyinsulation as the phase bars. This 200%neutral capacity helps prevent overheatingcaused by non-linear loads.

Isolated GroundSentron Busway is available with an optional50% isolated ground. This isolated groundprovides a clean ground path for highfrequency signals coming through theground. This option is very useful in applica-tions where there are computers ordiagnostic equipment. The isolated groundoption is often used in hospitals and highertechnology industry applications.

SERVICESPower II Fit Final Connection ProgramA "final connection" section is a length ofbusway inserted into a run of busway afterthe major portion of the busway run hasbeen installed. This allows the release of themajority of the busway run long before thefinal dimensions are known. Final Connection pieces will be shipped fromSpartanburg, SC within 5 working days afterthe receipt of the Final Connection order(maximum 5 pieces, IP40 & 55 only). FinalConnection pieces must be identified attime of original order release with approxi-mate date of Final Connection order. FinalConnection order form should be faxed oremailed to Busway Customer Service. Forprogram details and Final Connection orderform, refer to Bulletin BUFL or contact yourlocal Siemens sales office.

Cable/Conduit ConversionThe next time a job calls for valueengineering, consider using Sentron Busway as an alternative to cable andconduit and save your customer valuabletime and money. Our cable/conduit comparison program generates reports with your specific job parameters and allows you to see a side-by-side totalinstalled cost comparison between SentronBusway and cable and conduit. Consult yourlocal Siemens sales office for more informa-tion and a copy of the software. After initialinstallation, program updates may bedownloaded from our web site:www.sea.siemens.com.

Measuring and LayoutFor large jobs, Siemens Busway Systemsoffer assistance with measuring and layoutof the busway. This service is negotiated ona job by job basis.

Emergency ServiceSiemens provides a 24-hour emergencyservice call center where you can call at anytime for emergency service.1.800.241.4453 will put you in touch with atrained professional who will help assess thesituation and put you in touch with aproduct expert.

Siemens PPOOWWEERR IIII FFIITT Program compensates for dimensional deviations that may result in busway layouts. Specific dimensions on straight sections and/or elbows may be left out of factory released drawings. After the busway run has been installed, finalmeasurements are taken and sent to the factory.

The PPOOWWEERR IIII FFIITT Program can save you both time and money by eliminating uncertainty in busway measurements. When you take advantage of the POWER II FIT Program, your busway runs fit exactly the first time, eliminating incorrect pieces and costly reordering time.

The PPOOWWEERR IIII FFIITT Program will benefit you when you are uncertain of exact dimensions on long busway runs and when difficult contour situations require special attention.

Siemens Energy & Automation, Inc.3333 Old Milton ParkwayAlpharetta, GA 30005

[email protected]

© Siemens Energy & Automation, Inc. All Rights ReservedSiemens is a trademark of Siemens AG. Product names mentioned may be trademarks or registered trademarks of their respective companies. Specifications subject to change without notice.

Order # BUSA-05001-0704 Supersedes BUSA-05500 5M0704SP Printed in USA.

Siemens Sentron Busway SystemsSelection and Application Guide

Selection and Application Guide - Siemens · PDF fileSelection and Application Guide ... 3-wire, 3-phase 4-wire or 3-phase 4-wire ... with optional isolated ground which is

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