Combination Starters and Distribution Units Several different kinds of combination starters and distribution units can be put into a MCC. Typical com- bination starters and units are listed below with their standard abbreviations: Figure 1 - 6” High Density Unit Figure 2 - Standard Unit FVNR Full Voltage Non Reversing ............................................................................... D2-D5 DFVNR Dual Full Voltage Non-Reversing ....................................................................... D6-D7 FVC Full Voltage Contactor ...................................................................................... D8-D9 FVR Full Voltage Reversing ...................................................................................... D10-D11 2S1W Two Speed One Winding .................................................................................. D12-D13 2S2W Two Speed Two Winding .................................................................................. D14-D15 PW Part Winding .................................................................................................... D16-D17 RVAT Reduced Voltage Auto-Transformer .................................................................. D18-D19 YDC Reducing Voltage Wye Delta Closed Transition ................................................. D20-D21 YDO Reducing Voltage Wye Delta Open Transition ................................................... D22-D23 FCB Feeder Circuit Breaker ..................................................................................... D24 DFCB Dual Feeder Circuit Breaker ............................................................................. D24 FDS FeederDisconnect Switch ................................................................................ D24 DFDS Dual Feeder Disconnect Switch ....................................................................... D24 XFMR Transformer (lighting) ...................................................................................... D25 PNLBD Panel Board ..................................................................................................... D26 RVSS Reduced Voltage Soft Start .............................................................................. D26 VFD Variable Frequency Drive ................................................................................. D26 HFVNR High Density Full Voltage Non-Reversing .......................................................... D26 SFIM-7002B-0608 Section D, June, 2008 D1 Siemens Energy & Automation, Inc.
26
Embed
Combination Starters and Distribution Units - · PDF fileCombination Starters and Distribution Units Several different kinds of combination starters and distribution units can be put
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Combination Starters and DistributionUnits
Several different kinds of combination starters anddistribution units can be put into a MCC. Typical com-bination starters and units are listed below with theirstandard abbreviations:
Figure 1 - 6” High Density Unit
Figure 2 - Standard Unit
FVNR Full Voltage Non Reversing ............................................................................... D2-D5 DFVNR Dual Full Voltage Non-Reversing ....................................................................... D6-D7 FVC Full Voltage Contactor ...................................................................................... D8-D9 FVR Full Voltage Reversing ...................................................................................... D10-D11 2S1W Two Speed One Winding .................................................................................. D12-D13 2S2W Two Speed Two Winding .................................................................................. D14-D15 PW Part Winding .................................................................................................... D16-D17 RVAT Reduced Voltage Auto-Transformer .................................................................. D18-D19YDC Reducing Voltage Wye Delta Closed Transition ................................................. D20-D21 YDO Reducing Voltage Wye Delta Open Transition ................................................... D22-D23 FCB Feeder Circuit Breaker ..................................................................................... D24 DFCB Dual Feeder Circuit Breaker ............................................................................. D24 FDS FeederDisconnect Switch ................................................................................ D24 DFDS Dual Feeder Disconnect Switch ....................................................................... D24 XFMR Transformer (lighting) ...................................................................................... D25PNLBD Panel Board ..................................................................................................... D26 RVSS Reduced Voltage Soft Start .............................................................................. D26 VFD Variable Frequency Drive ................................................................................. D26 HFVNR High Density Full Voltage Non-Reversing .......................................................... D26
SFIM-7002B-0608Section D, June, 2008
D1Siemens Energy & Automation, Inc.
Combination Starter Ratings andDimensions
FVNR - Full Voltage Non-Reversing Unit WithFusible Switch or Circuit Breaker
Standard Features• Plug-in unit, Sizes 0 - 5.
• Circuit Breaker Sizes 0 - 5.
• Fusible Switch Sizes 0 - 4. Molded case switch, Sizes 5 and 6. Fuse clips for Class R fuses.
* Either/or but not both ** Oversized for additional equipment 1 Fixed mounted unit 2 Fixed mounted unit - space behind not available 3 Starter supplied with interposing relay(s)
200, 230V applications
SFIM-7002B-0608Section D, June, 2008
D3Siemens Energy & Automation, Inc.
Combination Starter Ratings andDimensions
FVNR-High Density Full Voltage Non-Reversing Unit With Circuit Breaker
Combination Starter Ratings and Dimensions Dual FVNR-Full Voltage Non-Reversing Unit With Fusible Switch or Circuit Breaker
Standard Features • Plug-in unit • Size 0 and 1 • MCP or thermal magnetic circuit breaker • Innova/Plus Starters - Bimetallic OL Relay • Control circuit terminals:
Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary terminal blocks
• Load power terminals: Type A, Bd, Bt, C
• Electrical starter seal-in contact for 3-wire control: Size 0 - 1, NO only.
Qualifications • Extra capacity control power transformer not available. • Current limiter attachment not available. • No room for relays or timers. • Maximum of four pilot devices per dual unit. • Maximum of 12 control and 3 power terminal points per
starter • Circuit breaker type disconnect only. Fusible disconnect
not available.
TYPICAL SCHEMATIC
SFIM-7002B-0608Section D, June, 2008
D6 Siemens Energy & Automation, Inc.
Available Features - Standard Unit Size • Ambient Compensated Bimetal Overloads.• Standard capacity control power transformer with
fused primary and secondary. • Solid state overload. • Pull-apart control terminals. • Pull-apart load terminals.
• Thermal magnetic circuit breaker. Barrier between starters.
• Surge suppressors. Handle interlocks operate with handle.• Extra starter auxiliary contacts in addition to NO seal-in
• Control circuit terminals: Type A - Connect to component terminals. Type Bd, Bt, C - Unit stationary terminal blocks.
• Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0 - 3, stationary blocks. - Sizes 4 - 6, connect to starter terminals.
TYPICAL SCHEMATIC
SFIM-7002B-0608Section D, June, 2008
D8 Siemens Energy & Automation, Inc.
Available Features - Standard Unit Size • Control power transformer with fused secondary,
and dual fused primary. • Pull-apart control terminals. • Pull-apart load terminals, Sizes 0 - 2. • 4 pilot devices mounted on unit device panel. • Control relay. • Surge suppressor.
• ETM• Handle interlocks operate with handle.• Extra starter auxillary contacts in addition to NO seal-in
contact.• Class J fuse clips.• Refer to tables for maximum size control power trans-
former, relays, and timer addition.• Communicating devices (ASi, SIMOCODE-PRO)
Auxiliary Contacts Starter Extra Contacts
Size Per Starter Type 0 - 1 4 SPST NO or NC 2 - 4 3 SPST NO or NC 5 - 6 3 SPDT NO & NC
Full Voltage Contactor with Circuit Breaker Disconnect Ratings and Space Requirements
Circuit Standard Maximum Maximum KW Breaker Unit Control Control
* Either/or but not both ** Oversized for additional equipment 1 Fixed mounted unit 2 Fixed mounted unit - Space behind not available 3 Starter supplied with interposing relay(s)
200, 230V applications
SFIM-7002B-0608Section D, June, 2008
D9Siemens Energy & Automation, Inc.
Combination Starter Ratings and Dimensions FVR-Full Voltage Reversing Unit With Fusible Switch or Circuit Breaker
Standard Features • Plug-in unit, Sizes 0 - 4 with HMCP, Sizes 0 - 3 with
• 5-pole starter and 3-pole starter horizontally interlocked. Size 2 vertical reversing starter and separate starter. Size 3 - 4 horizontal reversing starter and separate starter.
• Control circuit terminals: Type A-Connect to component terminal. Type Bd, Bt, C-Unit stationary terminal blocks.
• Load power terminals: Type A, Bd-Connect to starter terminals. Type Bt, C-Sizes 0 - 3, stationary blocks. Size 4 and larger, connect to starter terminals.
Typical Schematic
SFIM-7002B-0608Section D, June, 2008
D12 Siemens Energy & Automation, Inc.
Available Features-Standard Unit Size • Solid state overload.• Control power transformer with fused secondary
and dual fused primary. • Pull-apart control terminals. • Pull-apart load terminals Size 0 - 2. • Thermal magnetic circuit breakers. • 4-pilot devices mounted on unit device panel. • Handle interlock operates with handle. • Extra starter auxiliary contacts vary per size of
starter. Relays will be supplied if number of avail-able contacts is exceeded.
• Compelling control starts on low speed only. Push “Stop” before transferring from higher to lower speed.
• ETM. • Progressive control. Automatic starting on low speed and
automatic transfer to fast; stops before transferring from fast to slow.
• Automatic deceleration. • Class J fuse clips. • Refer to tables below for maximum size control power
transformer, relays, and timer additions. • Control relay (1). • Surge suppressors. • Communicating devices (ASi, SIMOCODE-PRO)
Sizes 5. Fuse clips for Class R fuses. • Electrical starter interlocks - supplied as required
for selective control and to electrically interlock starters. Seal-in contact: Sizes 0 - 1, NO only. Sizes 2 - 4, SPST. Size 5, SPDT.
• Bimetallic Ambient Compensated Overload
• Mechanical interlock on starters. Starters: Innova/Plus, Sizes 0 - 4. Sizes 0 - 4: Innova/Plus consisting of 2 starters horizontal-ly interlocked. Sizes 5: 2 starters with vertical mechanical interlock.
• Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary - terminal blocks.
• Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0 - 3, stationary blocks. Size 4 and larger, connect to starter terminals.
Typical Schematic
SFIM-7002B-0608Section D, June, 2008
D14 Siemens Energy & Automation, Inc.
Available Features - Standard Unit Size• Solid state overload.• Control power transformer with fused secondary,
and dual fused primary. • Pull-apart control terminals. • Pull-apart load terminals. Sizes 0 - 2. • Thermal magnetic circuit breakers. • 4 pilot devices mounted on unit device panel. • Handle interlock operates with handle. • Extra starter auxiliary contacts vary per size of
starter. Relays will be supplied if number of avail-able auxiliary contacts are exceeded.
• Compelling control starts on low speed only. Push “Stop” before transferring from high to low speed.
• Progressive control. Automatic starting on low speed and automatic transfer to fast. Stops before transferring from fast to slow.
• Automatic deceleration. • Class J fuse clips. • Refer to tables below for maximum size control power
transformer, relays, and timer additions. • Control relay (1). • Surge suppressors. • ETM. • Communicating devices (ASi, SIMOCODE-PRO)
Auxiliary Contacts Starter Extra Contacts
Size Hi/Low Type 0 - 1 3/3 SPST NO or NC 2 - 4 2/2 SPST NO or NC
5 2/2 SPDT NO & NC
2S2W with MCP Type Breaker: Disconnect Ratings and Space RequirementsStandard Maximum
Constant or Variable MCP Unit Control Control Torque Constant Horsepower Starter Frame Unit Space Transformer Transformer
• Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary terminal blocks.
• Load power terminals. Type A, Bd - connect to starter terminals. Type Bt, C - Sizes 0 - 3, stationary blocks. Sizes 4 - 6, connect to starter terminals.
Typical Schematic
SFIM-7002B-0608Section D, June, 2008
D18 Siemens Energy & Automation, Inc.
Available Features-Standard Unit Size • Control power transformer-fused secondary and
• Extra starter auxiliary contacts, 2S or R (relay used). • Surge suppressors. • Class J fuse clips. • Refer to tables below for maximum size control power
transformer, relays, and timer additions. • Communicating devices (ASi, SIMOCODE-PRO)
RVAT with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum
MCP Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V 460-575V Size Size Height Factor VA VA Relay Timer
• Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0 - 3, stationary blocks. Sizes 4 - 6 connect to starter.
TYPICAL SCHEMATIC
SFIM-7002B-0608Section D, June, 2008
D20 Siemens Energy & Automation, Inc.
Available Features-Standard Unit Size • Control power transformer-Fused secondary and
dual fused primary. • Pull-apart control terminals. • Solid state overload. • Phase Failure Relay • Pull-apart load terminals, SIzes 0 - 2. • 4 pilot devices mounted on unit device panel.
• Handle interlock operates with handle.• Control relay.• Surge suppressors.• Extra starter auxiliary contacts in addition to NO seal-in
contact. • Class J fuse clips. • Refer to tables below for maximum size control power
transformer, relays, and timer additions.
Auxiliary ContactsStarter Extra Contacts Size Per Starter Type 2 - 4 3 SPST NO or NC 5 - 6 3 SPST NO or NC
YDC with Circuit Breaker: Disconnect Ratings and Space RequirementsCircuit Standard Maximum
Breaker Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V 460-575V Size Size Height Factor VA VA Relay Timer
YDC with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum
Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V 460-575V Size Size Size Height Factor VA VA Relay Timer
• Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0 - 3, stationary blocks. Sizes 4 - 6 connect to starter.
TYPICAL SCHEMATIC
SFIM-7002B-0608Section D, June, 2008
D22 Siemens Energy & Automation, Inc.
Available Features-Standard Unit Size • Control power transformer-fused secondary and
dual fused primary. • Pull-apart control terminals. • Solid state overload.• Phase Failure Relay • Pull-apart load terminals, SIzes 0 - 2. • 4 pilot devices mounted on unit device panel. • Handle interlock operates with handle.
• Control relay• Surge suppressors. • Extra starter auxiliary contacts in addition to NO seal-in
contact.• Class J fuse clips.• Refer to tables below for maximum size control power
transformer, relays, and timer additions.
Auxiliary ContactsStarter Extra Contacts
Size Per Starter Type 2 - 4 3 SPSTNO orNC 5 - 6 3 SPSTNO orNC
YDO with Circuit Breaker: Disconnect Ratings and Space Requirements Circuit Standard Maximum
Breaker Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V 460-575V Size Size Height Factor VA VA Relay Timer
YDO with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space RequirementsMaximum Standard Maximum
Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V 460-575V Size Size Size Height Factor VA VA Relay Timer
1 Fixed mounted unit3 Starter supplied with interposing relay(s)
SFIM-7002B-0608Section D, June, 2008
D23Siemens Energy & Automation, Inc.
FeederTap Circuit Breakers These breakers are thermal magnetic type and feedlighting or power circuits. 125A and 250A framebreakers are mounted in plug-in units. Higher ratedbreakers are fixed mounted. (See chart on page G6for short circuit ratings and type of circuit breakersavailable.)
Dual mounted 125A frame breakers may be mountedin a 12” plug-in unit with a common door.
FeederTap Fusible Switches Fusible feeder switches, 30A through 200A, are mounted inplug-in units. Switches above 200A are fixed mounted andconsist of molded-case switches and separate fuse blocks.Dual-mounted fusible switches are available, 30A and 60A,with clips of same rating. Fuse clips are Class RK dimensionsfor 30-600A.
FeederTap Circuit Breakers and Fusible Switches: Disconnect Ratings and Space Requirements Unit Fuse Unit
1 Fixed mounted unit.2 Requires load terminal blocks.3 Stab opening at top of unit not available in rear.
Circuit breakers
Fusible disconnect switch
SFIM-7002B-0608Section D, June, 2008
D24 Siemens Energy & Automation, Inc.
Distribution Units
A Motor Control Center is principally intended tohouse multiple combination starters for the control ofelectrical motors. It is often convenient to include alimited number of power distribution units.
These units consist of the following: • Transformers • Feeder tap circuit breakers • Feeder tap fusible disconnects • Lighting panels
Transformer Protection - Lighting and MasterControl Primary protection is required, per NEC sizes as fol-lows: (lp = transformer primary currents.)
125% lp for lp greater than 9A. 167% lp for lp less than 9A. 300% lp for lp less than 2A.
In addition to primary protection, secondary protec-tion must be supplied if the transformer secondary is3 or 4 wire (dual voltage). Secondary protection isnot required if the transformer is 2 wire (single volt-age secondary).
Three Phase Transformer 6 to 15 KVA 480V Primary with (2) 5% FCBN taps 208/120V “Y” - connected Secondary 25-45 KVA 480V Primary with (2) 2 1/2% FCAN and (40) 2 1/2%
Transformer Ratings and Space Requirements Single Phase Transformers:1KVA and 2KVA sizes with 120V secondary can bemountedin a single 12” plug-in unit with a primarycircuit breaker or fusible disconnect.
3KVA and larger sizes are mounted in bottom of sec-tion. 20KVA or larger sizes require 20” deep sections.
3 Phase Transformers:All three phase transformers require 20” deep sections, mustbe mounted in the bottom, and will not have vertical bus inthat compartment. Refer to page B22 for conduit entry.
All 3KVA and larger single phase and all three phase trans-formers are mounted approximately 5 inches above thestructure base channel sills.
Single Phase Transformer 480/240V - 120/240V Secondary 60 Hz
Three Phase Transformer 480V Primary - 208/120V Secondary 60 Hz
Transformer Primary BreakerKVA Unit Size Trip Amps