CER Aluminum Ladder Tray Nomenclature

Canadian Electrical Raceways Inc. 5040 Benson Dr. Burlington Ontario Canada L7L5N6

PHONE: 905-337-7522 • TOLL FREE: 1-877-213-8045 • FAX: 905-337-7426

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CER Aluminum Ladder Tray Nomenclature

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ALUMINUM CABLE TRAY SYSTEMSGENERAL CONSTRUCTIONLADDER & VENTILATED TRAY

I BEAM SIDE RAILAll load classes of C.E.R. aluminum ladder and ventilated cable tray are constructed from two longitudinal parallel I beam side rails connected by transverse members (rungs).

Trays are constructed from 6063T6 (copper free aluminum .01%) extrusions. The I beam configuration used in the design of the side rails ensures maximum longitudinal and transverse strength.

1. I beam design maximizes strength to Weight-ratio provides – 15 to 20% more strength than C shape.

2. Thicker materials on top flange increases tray stiffness.

3. Welding bead provides positive rung lock & disperses heat.

Rung A is used on C class tray.

Rung B is used on D & E class tray up to & including 24” width.

Rung C is used on D & E class trays 30” wide & over.

MATERIALS AND CONSTRUCTIONMATERIALSTRAYAll C.E.R. aluminum ladder & ventilated cable tray are manufactured from structural grade copper free (marine grade) 6063T6 aluminum

Aluminum tray has excellent weathering resistance as well as excellent resistance to corrosion and has been used outdoors and in chemical and marine environments for many years.

A corrosion chart appears on pages 11-12.

FITTINGSAll fittings are manufactured from 5042-H32 grade aluminum These include elbows, tees, crosses, covers, and splices.

COUPLINGS & HARDWAREFour bolt coupling sets are provided with each length of tray and required quantity of coupling sets are also provided for all fittings. Coupling sets come with carriage bolts and “K” lock nuts.Stainless steel hardware is available as an option.

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WELDED CONSTRUCTIONC.E.R. cable tray ensures optimal structural integrity as well as strength and superior bonding characteristics. Metal Insert Gas (M.I.G.) welding is a semi-automatic process which utilizes aninert gas shroud over a consumable wire electrode which transfers current to melt the base material. A filler metal is also added for reinforcement.

SMOOTH EDGESThe inside of C.E.R.’s cable trays have smooth edges, free from burrs and projections that can cause personal injury or damage to cable during installation.

SOLID & LOUVRE TRAYThe tray is constructed from 5052-H32 aluminium sheet, formed with or without ventilation louvred cut outs as specified

ALUMINUM CABLETRAY SELECTIONTRAY SELECTIONLADDER TRAYC.E.R. aluminum ladder tray is available is variety of widths, sidewall heights and load classes and lengths to fit any application. Typical ladder tray rung spacing is 6”, 9”, and 12”.

VENTILATED TRAYC.E.R. ventilated is fabricated in the same variety of widths and sidewall heights as ladder tray but rungs are spaced 4”in accordance with CSA spec C.22.2 No126.1.

WIDTHS & HEIGHTSOur aluminum ladder tray is available in widths from 6” (150mm) to 36” (900mm) wide and nominal sidewall heights of 4” (101mm), 5”(127mm), 6”(150mm), 7”(178mm).

RUNG SPACINGLadder tray transverse members (rungs) are available in 6”, 9”, & 12” rung spacing. Ventilated tray transverse members (rungs) are spaced 4”apart.

SOLID AND LOUVRE TRAYNon-ventilated (Solid) Tray – Tray has a solid non-perforated bottom and provides maximum cable protection.

Louvre Tray – Tray has similar construction to solid tray but ventilation louvres 3 3/8” x 9/16”placed 2”apart down the length of the tray bottom. Please note fittings are provided with solid bottom.

LOAD CLASSES & SPANThere are four (4) load classes of cable tray listed by CSA:

Class A: light duty: normal applications include control, instrumentation and communication wiring. Class C: standard duty: maximum support span 10 feet (3 meters).

Class D: heavy duty: used for heavy duty applications with long spans 20 feet (6 meters), provide economic advantages.

Class E: extra heavy duty: carries approximately 70% more load than D class over long spans 20 feet (6 meters).

A chart showing loads with various spans is shown below:

CSA STANDARD LOAD CLASSES FOR LADDER TRAYDesign load at varying support spans (lbs. / ft.)

LoadClass

Support Span

5ft 6.5ft 8ft 10ft 13ft 16ft 20ftA 66 41 30 25 - - -

C 173 110 80 65 - - -

D - - - 120 76 55 45

E - - - 200 127 93 75

Design load at varying support spans (kgs / meter)

LoadClass

Support Span

1.5m 2.0m 2.5m 3.0m 4.0m 5.0m 6.0mA 99 62 45 37 - - -

C 259 164 119 97 - - -

D - - - 179 113 82 67

E - - - 299 189 137 112

Please note load calculations must include: total cable weights, cover weights if applicable, as well as any outdoor factors, such as the tray may be subject to e.g. wind and snow loads.

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CABLE TRAY SUPPORTS & SUPPORT LOCATIONSupport for cable trays should provide strength and working load capacity sufficient to meet the cable tray’s load requirement.

1. Horizontal and vertical tray supports should provide an adequate bearing surface for the tray and should have provision for hold down clamps and fasteners.

2. In addition, vertical supports should provide secure means of fastening the cable tray to supports.

Horizontal cable tray straight sections should be supported at intervals not to exceed the support span for the appropriate CSA Class Designation.

Use un-spliced straight sections on all simple spans and on end spans of continuous span runs. A support should be located within 2 feet of each side of an expansion connector.

Straight section lengths should be equal to or greater than the span length, to ensure not more than one splice between supports.

C.E.R. recommends, where possible, that the supports are placed at one-quarter span from the splice plates. In other words, the optimal coupling location is at one-quarter span from the support.

Horizontal Elbow Supports:Place supports within two feet of each fitting extremity and as follows:

A) 90 deg. elbows – support at the 45 deg. point of arc.

B) 60 deg. elbows – support at the 30 deg. point of arc.

C) 45 deg. elbows – support at the 22 1⁄2 deg. point of arc, except for the 12 inch radius elbows.

D) 30 deg. elbows – support at the 15 deg. point of arc, except for the 12 inch radius elbows.As Shown in figure 1.1

Horizontal Tee Supports:For 12 inch Radius Tees, place supports within two feet of each of the three openings connected to the cable tray.

For all other radii, place at least one support under each side rail at the horizontal tee preferably as shown in figure 1.2.

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Horizontal Cross Supports:For 12 inch radius Crosses, place supports within 2 feet of each of the four openings connected to the table tray.

For all other radii, place at least one support under each side rail at the horizontal cross preferably as shown in figure 1.4.

Horizontal Wye Supports:Place supports within 2 feet of each of the three openings connected to the cable tray and at the 22 ½ deg. point of the arc adjacent to the branch. As shown in Figure 1.3.

Reducer Supports:Place supports within 2 feet of each extremity. As shown in Figure 1.5.

Vertical Elbows:Vertical elbows at the top of runs should be supported at each end.

Vertical elbows at the bottom of runs should be supported at the top of the elbow and within 2 feet of the lower extremity of the elbow. As shown in figure 1.6.

Vertical Tees:Place supports within 2 feet of each fitting extremity. As shown in figure 1.7.

Vertical Straight Tray Sections:Support indoor sections at appropriate intervals permitted by the building structure.

Sloping Trays:Support at intervals not exceeding those for horizontal tray of the same design for the same installations.

End of Run Drop Outs:Should have a support attached to it to reinforce the fitting.

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Outdoor InstallationsWind, snow and ice loads need to be determined for outdoor installations. Contact factory for more information.

Fitting InstallationHorizontal Elbow SupportSupports for horizontal cable tray fittings should be placed within 600 mm (2ft) of each fitting extremity,and as follows:

a. 90 degree supports at the 45 degree point of arc.b. 60 degree supports at the 30 degree point of arc.c. 45 degree supports at the 22 -1/2 degree point of arc. (except for the 300mm (12 in.) radii).d. 30 degree supports at the 15 degree point of arc (except for the 300mm (12 in.) radii).

Horizontal Tee Support

Place horizontal tee supports within 600mm (2ft) of eachof the three openings connected to other cable tray itemsfor the 300mm (12in.) radius. On all other radii, at leastone additional support should be placed under each siderail at the horizontal tee, preferably as shown.

Horizontal Wye Support

Place Horizontal wye supports within 600mm (2ft) of each of the three openings connected to other cable tray items, and at each 22-1/2 degree point of arc adjacent to the side branch.

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1.1

1.3

1.2

Horizontal Cross SupportPlace horizontal cross support within 600mm (2ft) of eachof the four openings connected to other cable tray itemsfor the 300 mm (12in.) radius. On all other radii, at least one additional support should be placed under each siderail of the horizontal cross, preferably as shown.

Reducer Support

Place reducer supports within 600mm (2ft) of each Fitting extremity.

Vertical Cable Tray Elbows

Vertical cable tray elbows at the top of runs should besupported at each end. At the bottom elbow and within600mm (2ft) of the lower extremity of the elbows.

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1.4

1.5

1.6

Vertical Cable Tray TeesVertical cable tray tees should be supported within 600mm(2ft) of each fitting extremity.

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1.7

CABLE INSTALLATIONWhen installing cable in a cable tray, plan ahead carefully and use caution so you avoid damage to the cable. Contact your cable manufacturer for maximum pulling tensions, minimum bending radii and advice on preventing deformation of cable jacketing or shielding.

Rule 12-2204 of the C.E.C. regulates the number of single and multi conductor cables allowed in cable trays. With that in mind, take care to properly size a cable tray. C.E.R. will provide you with information upon request.

Ampacity Rating Of Cables In Cable TraysOne of the many advantages of using cable tray is that it may allow a free-air ampacity rating of cables and as a result offer a cost reduction versus over sizing of cables. Free-air rating in cable trays will be adversely affected by cable mix, cable spacing, tray bottom, or the use of covers. Please refer to the C.E.C. Rule 12-2212 for full details, or contact the factory.

BarriersThe purpose of barrier or divider strips is to separate cables carrying dissimilar voltages, as per C.E.C.

Rule 12-904(2) barrier strips are the same height as the load depth of trays and complete with mounting hardware. Barriers for horizontal and vertical fittings are also available.

GroundingThe Canadian Electrical Code (C.E.C.) specifies under Rule 12-2210 when a cable tray can be considered bonded to ground.

Rule 12-2210 Provisions to Bonding

1. Where metal supports for metal cable trays are bolted to the tray and are in good electrical contact with the grounded structural frame of a building, the tray shall be deemed to be bonded to ground.

2. Where the conditions of Sub Rule (1.) do not apply, the metal cable tray shall be adequately bonded at intervals not exceeding 15m and the size of bonding conductors shall be based on the maximum rating or setting of an over current device in the circuits carried by the cable tray in accordance with the requirements of Rule 10-814.

Ground continuity is maintained with the use of bonding jumpers. A bonding jumper should be used (one on each side rail) at all expansion connectors, vertical or adjustable connectors, or where bridging a discontinuity in the tray run.

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THERMAL CONTRACTION & EXPANSIONIt is important to consider thermal contraction and expansion when installing cable tray systems. If you need expansion connectors, refer to Figure 3.0 and 4.0 for maximum spacing.

Securely fix the cable tray at the support nearest to its’ midpoint between the expansion connectors and secure by expansion guides at all other support locations. The cable tray should be permitted longitudinal movement in both directions from that fixed point towards the expansion connectors.

Accurate gap setting at the time of installation is necessary for the proper operation of the expansion connectors. The following procedure should help installers determine the correct gap:

Step 1: Plot the highest expected cable tray metal temperature on the maximum vertical axis. Example’s value = 100° F (See Figure 3.0).

Step 2: Plot the lowest expected cable tray metal temperature on the minimum temperature vertical axis. Example’s value = -28° F

Step 3: Draw a line between these maximum and minimum temperature points on the two vertical axis.

Step 4: To determine the required expansion joint gap setting:

• Plot the cable tray metal temperature at the time of the cable tray installation on the maximum temperature vertical axis. (Example’s value = 50° F).

• Project over from the 50° F point on the maximum temperature vertical axis to an intersection with the line between the maximum and minimum cable tray metal temperatures.

• From this intersection point, project down to the gap setting horizontal axis to find the correct gap setting value (Example’s value = 3/8 inch gap setting.

• This is the length of the gap to set between the cable tray sections at the expansion joint splice plate location.

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MAXIMUM DISTANCE BETWEEN EXPANSION JOINTS(For 1” Movement)

Temperature Differential Steel Aluminum°F °C Feet Meters Feet Meters

25 -4 512 156 260 79.2

50 10 256 78 130 39.6

75 24 171 52.1 87 26.5

100 38 128 39 65 19.8

125 51 102 30.1 52 15.8

150 65 85 25.5 43 13.1

175 79 73 22.2 37 11.3

Figure 4.0

SIMPLIFIED THERMAL EXPANSION & CONTRACTION SOLUTIONC.E.R. has designed a unique expansion plate with a 2” long slot. Setting the bolt in the center position will allow for an inch of expansion and contraction in both directions, eliminating the need for calculating the gap.

ELECTRICAL GROUNDING CAPACITYAlthough all C.E.R. products are CSA approved, the Canadian Electrical code does not address the equipment grounding through cable tray.

C.E.R. cable trays meet the requirements of the National Electrical Code Article 392.7 based on the cross sectional area of each side-rail as per the table below.

Maximum Fuse Ampere Rating, Circuit Breaker Ampere Trip Setting, or Circuit Breaker Protective Relay

Ampere Trip Setting for Ground Fault Protection of any Cable

Circuit in the Cable Tray System

Minimum Cross-Sectional Area of Metal in Square Inches

Steel Cable Trays Aluminum Cable Trays60 0.20 0.20

100 0.40 0.20

200 0.70 0.20

400 1.00 0.40

600 1.50 0.40

1,000 - 0.60

1,200 - 1.00

1,600 - 1.50

Table 392.7 (B) (2): Metal Area Requirements for Cable Trays and Associated Fittings Used as Equipment Grounding Conductors

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TECHNICAL DATA: CORROSION CHART FOR CABLE TRAY (PART 1 OF 2)

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TECHNICAL DATA: CORROSION CHART FOR CABLE TRAY (PART 2 OF 2)

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Ladder and Ventilated Tray

Straight Section Numbering System

L C A 4 3 - (Width) – (Rung)

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Ladder (L) or Ventilated (V)

CSA Load Class:(C)(D) or (E)

Material: Aluminum

Sidewall Height: 4”

Length:3m or 6m*

Width: (6”,12”,18”,24”,30”,36”) or (custom)

Rung Spacing Ladder: (6”,9”,12”)Ventilated tray:(Leave Blank)**

NOTES:* CSA Class C trays are available in 6m (20ft) sections by special order only – please consult factory.* CSA Class D and E trays available in 3m or 6m sections.** CSA Ventilated tray has a rung spacing of 4” (fixed)

C.E.R. Series Side Rail Dimensions Span Ft.Design Factor for

Two Rails

10 65 Area = 0.88 in.2

8 80 Sz = 1.10 in.3

6.5 110 lx = 2.06 in.4

5 173

10 120 Area = 1.00 in.2

Sz = 1.24 in.3

lx = 2.51 in.4

20 66.97 Area = 1.20 in.2

16 81.85 Sz = 1.55 in.3

13 113.1 lx = 3.24 in.4

10 120

10 200 Area = 1.762 in.2

Sz = 2.32 in.3

lx = 4.92 in.4

20 75 Area = 1.762 in.2

16 93 Sz = 2.32 in.3

13 127 lx = 4.92 in.4

10 200

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LCA43

LDA43

LDA46

LEA43

LEA46

LoadsLbs. Per Ft. Kg. per M

96.73

119.05

163.7

257.45

178.58

45

55

76

178.58

297.63

111.61

138.4

189

297.63


Two Rails

10 20 Area = 1.21 in.2

Sz = 1.70 in.3

Ix = 4.12 in.4

20 45 Area = 1.286 in.2

15 55 Sz = 1.89 in.3

13 76 Ix = 4.64 in.4

10 120

10 200 Area = 1.568 in.2

Sz = 2.38 in.3

Ix = 5.98 in.4

20 75 Area = 1.85 in.2

16 93 Sz = 2.82 in.3

13 127 Ix = 7.14 in.4

10 200

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LDA53

LDA56

LEA53

LEA56

Loads

Lbs per ft. Kg per M

29.76

66.97

81.85

113.1

178.58

297.63

111.61

138.4

189

297.63


Two Rails

10 65 Area = 1.12 in.2

8 80 Sz = 1.73 in.3

6.5 110 lx = 4.92 in.4

5 173

10 120 Area = 1.289 in.2

Sz = 2.18 in.3

Ix = 6.54 in.4

20 45 Area = 1.42 in.2

16 55 Sz = 2.64 in.3

13 76 lx = 7.74 in.4

10 120

10 200 Area = 2.09 in.2

Sz = 3.92 in.3

Ix = 12.21 in.4

20 75 Area = 2.09 in.2

16 93 Sz = 3.92 in.3

13 127 Lx = 12.21 in.4

10 200

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LCA63

LDA63

LDA66

LEA63

LEA66

Kg. Per M

Loads

Lbs. Per Ft.

96.73

119.05

163.7

257.45

178.58

66.97

81.85

113.1

178.58

297.63

111.61

138.4

189

297.63

C.E.R. Series Side Rail Dimensions Span Ft.Load Design Factor for

Two Rails

10 120 Area = 1.681 in.2

Sz = 3.29 in.3

lx = 10.53 in.4

20 45 Area = 1.681 in.2

16 55 Sz = 3.29 in.3

13 76 lx = 10.53 in.4

10 120

10 120 Area = 2.471 in.2

Sz = 4.93 in.3

Ix = 17.62 in.4

20 75 Area = 2.471 in.2

16 93 Sz = 4.93 in.3

13 127 lx = 17.62 in.4

10 200

20

LDA73

LDA76

LEA73

LEA76

Lbs. Per Ft. Kg. per M

178.58

66.97

81.85

113.1

178.58

178.58

111.61

138.4

189

297.63

ALUMINUM TRAY ACCESSORIESUniversal Splice Plates

• Used to join cable tray & fittings• Supplied in pairs with hardware• Included with tray & fittings

Catalog Number

Height

In mmA4C 4 101

A5C 5 127

A6C 6 152

A7C 7 178

Expansion Splice Joints• Expansion Plates allow for 1” expansion or contraction of the cable tray run• Also use where expansion joints occur in the supporting structure• Supplied in pairs with hardware• Bonding jumpers are required (order separately)

Catalog Number

Height

In mmA4EXP 4 101

A5EXP 5 127

A6EXP 6 152

A7EXP 7 178

Vertical Adjustable Splice Plates• Used to provide changes in elevation that do not conform with standard

vertical elbows• Supplied in a set of 4 plates (1 set) with hardware

Catalog Number

Height

In mmA4ADJ 4 101

A5ADJ 5 127

A6ADJ 6 152

A7ADJ 7 178

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Step Down Splice Plates• Used for connecting side rails of different heights• Supplied in pairs with hardware

Catalog Number

Height

In mm

A5SDS 5 127

A6SDS 6 152

A7SDS 7 178

Horizontal Adjustable Plates• Used to provide changes in direction in a horizontal plane that do not conform

with horizontal fittings

Catalog Number

Height

In mmA4HADJ 4 101

A5HADJ 5 127

A6HADJ 6 152

A7HADJ 7 178

Reducing Plates• Used when joining 2 cable trays having different widths• Use in pairs for a straight reduction• Use with a standard splice plate for an offset reduction• Supplied as a single plate with hardware• * Specify reduction in inches as a suffix to part number (3, 6, 9, 12, 18, or 24)

Catalog Number

Height

In mmA4SQR* 4 101

A5SQR* 5 127

A6SQR* 6 152

A7SQR* 7 178

Barrier Splice• Plastic splice holds adjoining barriers in place• Catalog No. AB-BPS

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* Specify Reduction in inches as a suffix of the part number

Hold Down Clamp• Used to hold tray rail to strut or wall bracket• Supplied singularly, no hardware supplied• Catalog No. A-HDC

Side Securing Clip• Used to secure tray side-rail• No hardware supplied

Catalog Number

Height

In mmA4SC 4 101

A5SC 5 127

A6SC 6 152

A7SC 7 178

Center Hanging Support• Allows cable to be laid in from both sides of tray• Eliminates cable pulling and cutting of supports• Use with ½” rod (not supplied)• For use with tray widths up to and including 24”• Load capacity 700 lbs.• Eccentric loading not to exceed 60% vs. 40% load differential•

*Add width of tray•

Catalog No. A*CH

Wall Bracket•

* Specify tray widths in inches•

Catalog No. SB200-X

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*Specify tray type or tray being used as a prefix (tray type then SC to be used)

Cantilever Wall Bracket• * Specify tray width in inches• Catalog No. WB200-X

Box Connector Plate• Used to attach end of tray to a box or control panel• Supplied in pairs with hardware

Catalog Number

Height

In mmA4F 4 101

A5F 5 127

A6F 6 152

A7F 7 178

Frame Box Connector• Used to attach the end of tray to a box or control panel• Reinforces box at entry point• Supplied with tray connection hardware• * Specify tray width

Catalog Number

Height

In mmA4BC* 4 101

A5BC* 5 127

A6BC* 6 152

A7BC* 7 178

End Blank• Forms a closure ending a cable tray run• Supplied with hardware• * Insert tray width

Catalog Number

Height

In mmA4-*EB 4 101

A5-*EB 5 127

A6-*EB 6 152

A7-*EB 7 178

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TRAY HARDWAREStandard Hardware Kit

• Consists of ⅜ x ¾ steel carriage bolt (zinc chromate)• ⅜ steel serrated flanged nut zinc plated (zinc chromate)• Catalog No. HDRZ

Optional Hardware• Consists of ⅜ x ¾ stainless steel (316) carriage bolt• ⅜ stainless steel (316) serrated nut• Catalog No. HDDRSS

Drop Out• Drop outs provide a rounded surface width with a 4” radius to protect cable

as it exists the cable tray• Drop outs attach to any cable tray rung• * Insert tray width and specify tray type

Catalog Number

Height

In mmA4-*DO 4 101

A5-*DO 5 127

A6-*DO 6 152

A7-*DO 7 178

Barrier Straight Sections• Supplied in 10 ft. lengths• Supplied with four #10 x ½” self drilling screws

Catalog Number

Height

In mmA4Bx10 4 101

A5Bx10 5 127

A6Bx10 6 152

A7Bx10 7 178

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Barrier Flexible Sections• Will conform to any horizontal bend radius• Supplied in 5 ft. lengths• Cut to length as required• Supplied with three #10 x ½” self drilling screws

Catalog Number

Height

In mmA4FBx5 4 101

A5FBx5 5 127

A6FBx5 6 152

A7FBx5 7 178

Barrier Vertical Bends• Preformed to conform to a specific vertical fitting• * Insert 30, 45, 60, or 90 for degrees• ** Insert 12, 24, or 36 for radius (Specify IV or OV)• Supplied with three #10 x ½” self drilling screws

Underfloor Support•

* Specify tray width in inches•

Catalog No. UFS*

Vertical Hanger Splice Plate• 15 lb. design load• Supplied as a pair. No hardware supplied.

Catalog Number

Height

In mmAVSP4 4 101

AVSP5 5 127

AVSP6 6 152

AVSP7 7 178

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Catalog Number Barrier IV or OV Degree Radius

Tray type

LCA4 B IV 90 24

Ground Clamp• Catalog No. A-GRND

Cable Range #6 – 250 MCM

Bonding Jumper• Rated for 600 amp. 12” long.• Catalog No. BJ600-12

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Aluminum Tray CoversFull range of covers is available for straight tray lengths and fittings.

• Solid covers should be used for maximum enclosure of the tray and when no accumulation of heat is expected.

• Tray covers, up to 36” wide are manufactured from 0.040 thick aluminum (all except 2” & 3” pitch peaked covers).

• Ventilated covers provide a cable shield while allowing heat to escape.• Flanged covers have a 1⁄2” flange.• Peaked covers are flanged. Standard peak is 3⁄4”, peaked covers with special pitches are available

upon request.• Cover clamps are not included with tray cover and must be ordered separately.• C.E.R. recommends vertical runs of cable tray are covered to a minimum height of 6 ft. above

floor level to isolate cables from personnel.

Aluminum Cover Part Number System

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Tray Series C C for Cover F is for FlangedP is for Peaked

S for SolidV for Ventilated

Width in Inches

LCA4 C P S 12

Aluminum Tray Fittings

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Fitting Part Numbering

LDA6-24 H90-24

SeriesLCALDALEA

Height4=4”5=5”6=6”7=7”

Width06=6” (152)09=9” (228)12=12” (305)18=18” (457)24=24” (609)30=30” (762)36=36” (914)

TypeH =Horizontal BendHT =Horizontal TeeX =CrossIV =Vertical Inside BendOV =Vertical Outside BendLR = Left ReducerSR = Straight ReducerRR = Right Reducer

Angle30=30°45=45°60=60°90=90°

Radius12=12” (305)24=24” (609)36=36” (905)

You must specify width 1 to width 2

VT = Vertical Tee

Horizontal Bends 90°,60°,45°,30°

30

H90°H60°

H45° H30°H90° H60°

1 PR Splice plate with Hardware Included

Horizontal Tee (HT) 2 pair splice plates with hardware included.

31

Cross (x) 3 pair splice plates with hardware included.

Must specify tray series. (ex. LEA66 before catalogue number)

Reducer1 Pair splice plates with hardware included

32

LDA6-24-RR 18Width 2FittingWidth 1Series

Left Reducer Straight Reducer Right Reducer


LR SR RR

Vertical Bend 90° (OV,IV)1 pair splice plates with hardware included.

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Outside Vertical(OV) Inside Vertical

(IV)



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Outside Vertical(OV)

Inside Vertical(IV)



35

Outside VerticalOV

Inside VerticalIV



36

Outside VerticalOV

Inside VerticalIV


CER Aluminum Ladder Tray Nomenclature

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