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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.

• Starters: Innova/Plus, Sizes 0 - 4

• Bimetallic Ambient Compensated Overload

• Electrical starter seal-in contact for 3-wire control: Size 0 - 1, NO only. Sizes 2 - 4, SPST. Size 5 - 6, SPDT.

• 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


D2 Siemens Energy & Automation, Inc.

Available Features - Standard Unit Size

• Control power transformer with fused secondary and Surge suppressor. Dual fused primary.

• Solid state overloads.

• Pull-apart control terminals.

• Pull-apart load terminals, Sizes 0 - 2. seal-in contact.

• Thermal magnetic circuit breaker.

• 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 below for maximum size control power transformers, relays, and timer addition.

• Communicating devices (ASi, SIMICODE-PRO)

Auxiliary ContactsStarter Extra Contacts Size Per Starter Type0 - 1 4 SPST NO or NC 2 - 4 3 SPST NO or NC 5 - 6 3 SPDT NO & NC

FVNR with ITE 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

3 3 5 0 125 12 1 50 150 1* 1*7 1/2 7 1/2 10 1 125 12 1 50 150 1* 1*10 15 25 2 125 12 1 50 150 1* 1*25 20 50 3 125 18 1 1/2 150 250 1* 1*25 20 50 3 125 24** 2 150 250 2 140 50 100 4 125/250 24 2 150 250 2 175 100 200 5 400 36 3 50 150 1 -

150 200 400 6 600 48 4 150 250 2 1

FVNR with 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

3 3 5 0 30 30 12 1 50 150 1* 1*7 1/2 7 1/2 10 1 30 30 12 1 50 150 1* 1*

10 15 25 2 60 60 12 1 50 150 1* 1* 25 30 50 3 100 100 24 2 150 250 1* 1*40 50 100 4 200 200 42 3 1/2 150 250 2 1 75 100 200 5 400 600 721 6 503 1503 2 2

150 200 400 6 600 600 722 6 150 250 1 1

* 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



Combination Starter Ratings andDimensions

FVNR-High Density Full Voltage Non-Reversing Unit With Circuit Breaker

Standard Features• Plug-in unit, Sizes 0 - 1.

• Circuit Breakers Sizes 0 - 1.

• Starters: Innova/Plus, Sizes 0 - 1, ESP100 Overload

• Electrical starter seal-in contact for 3-wire control: Size 0 - 1, NO only.

• Control circuit terminals: Unit stationary terminal blocks.

Typical Schematic



Available Features - Standard Unit Size

• Control power transformer with fused secondary and dual fused primary.

• Thermal magnetic circuit breaker. • 2 pilot devices mounted on unit device panel. • Surge suppressor. • Internal Circuit Breaker Interlock.

• Extra starter auxiliary contacts in addition to NO seal-in contact.

• Clips. • Refer to tables below for maximum size control power

transformer, relays, and timer addition. • Communicating devices (ASi, SIMOCODE-DP), (AS-i or

SIMOCODE not available on high density units with control power transformer.

Auxiliary ContactsStarter Extra Contacts

Size Per Starter Type 0 - 1 2 SPSTNO orNC

FVNR 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 3 3 5 0 125 6 1/2 50 50 0 0

7 1/2 7 1/2 10 1 125 6 1/2 50 50 0 0



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



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

contact. • Communicating devices (ASi, SIMOCODE-PRO)

Auxiliary ContactsStarter Extra Contacts Size Per Starter Type 0 - 1 4 SPST NO or NC

Dual FVNR 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

3 3 5 0 125 18 1 1/2 50 50 - - 1/2 7 1/2 10 1 125 18 1 1/2 50 50 - -



Combination Contactor Ratings and Dimensions With Fusible Switch or Circuit Breaker

Standard Features• Thermal magnetic circuit breaker. • Plug-in unit, Sizes 0 - 5. • Fusible Switch Sizes 0 - 4. Molded case switch,

Sizes 5 and 6. Fuse clips for Class R fuses. • Contactor: Innova/Plus, Sizes 0 - 4 • Electrical starter seal-in contact for 3-wire control:

Size 0 - 1, NO only. Size 2 - 4, SPST. Size 5 - 6, SPDT.

• 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



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

Resistance Heating Leads Contactor Frame Unit Space Transformer Transformer 200V 230V 460V 575V Size Size Height Factor VA VA Relay Timer 6.92 8.0 15.9 19.9 0 125 12 1 50 150 1* 1*10.4 11.9 23.9 29.8 1 125 12 1 50 150 1* 1*24.2 27.8 55.7 69.6 2 125 12 1 50 150 1* 1* 43.3 50.0 99.4 124 3 125 18 1 1/2 150 250 1* 1* 43.3 50.0 99.4 124 3 125 24** 2 150 250 2 1 67.5 77.6 155 194 4 125/250 24 2 150 250 2 1 121 139 278 348 5 400 36 3 503 1503 1 - 162 210 415 515 6 600 482 4 150 250 2 1

Full Voltage Contactor with Fusible Switch (refer to Pg E4): Disconnect Ratings and Space Requirements


Maximum Horsepower Contactor Switch Clip Unit Space Transformer Transformer 200V 230V 460V 575V Size Size Size Height Factor VA VA Relay Timer 6.92 8.0 15.9 19.9 0 30 30 12 1 50 150 1* 1* 10.4 11.9 23.9 29.8 1 30 60 12 1 50 150 1* 1* 24.2 27.8 55.7 69.6 2 60 60 12 1 50 150 1* 1*31.1 35.8 71.6 89.5 3 100 100 24 2 50 250 1* 1* 43.3 50.0 99.4 124 3 100 100 24 2 150 250 1* 1* 67.5 77.6 155 194 4 200 200 42 3 150 250 2 1 121 139 278 348 5 400 600 721 5 503 1503 2 2 162 210 415 515 6 600 600 722 6 150 250 1 1

* 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



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

fusible switch. • Circuit Breakers Sizes 0 - 5. • Fusible switches, Sizes 0 - 4. Molded case switches

Sizes 5 - 6. Fuse clips for Class R fuses. • Electrical starter seal-in contact for 3-wire control:

Size 0 - 1, NO only. Size 2 - 4, SPST. Size 5 - 6, SPDT. NC reversing electrical interlock per contac-tor.

• Mechanical interlock on contactors. • Bimetallic Ambient Compensated Overload

• Starter: Innova/Plus, Sizes 0 - 1 with vertical mechanical interlock. Innova/Plus, Sizes 2 - 4 with horizontal mechanical interlock. Bimetallic OL

• 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



Available Features-Standard Unit Size • Control power transformer with fused secondary

and dual fused primary. • Solid state overload. • Pull-apart control terminals. • Pull-apart load terminals, Sizes 0 - 2. • Thermal magnetic circuit breakers. • 4-pilot devices mounted on unit device panel. • Control relay (2).

• Surge suppressors. • ETM. • Handle interlocks operate with handle. • Extra starter auxiliary contacts in addition to NO main-

taining seal-in contact and NC electrical interlock. • Class J fuse clips. • Refer to tables below for maximum size control power

tranformer, relays, and timer additions. • Communicating devices (ASi, SIMOCODE-PRO)


Size Per Starter Type 0 - 1 3 SPST NO or NC 2 - 4 2 SPST NO or NC 5 - 6 2 SPDT NO & NC

FVR 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 3 3 5 0 125 18 1 1/2 50 150 1* 1*

7 1/2 7 1/2 10 1 125 18 1 1/2 50 150 1* 1* 10 15 25 2 125 24 2 50 250 2 1 25 30 50 3 125 30 2 1/2 150 250 2 1 40 50 100 4 125/250 36 3 150 250 2 1 75 100 200 5 400 721 6 503 2503 3 1

150 200 400 6 600 722 6 150 250 2 1

FVR with 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 3 3 5 0 30 30 18 1 1/2 50 150 2 * 1 *

7 1/2 7 1/2 10 1 30 60 18 1 1/2 50 150 2 * 1 * 10 15 25 2 60 60 24 2 50 150 2 1 25 30 50 3 100 100 36 3 150 250 2 1 40 50 100 4 200 200 541 4 1/2 150 250 2 1 75 100 200 5 400 600 30x721 6 503 1503 2 2

* Either/or but not both a• Fixed mounted unit • Fixed mounted unit-space behind not available • Starter supplied with interposing relay(s)

200-230V applications



Combination Starter Ratings and Dimensions 2S1W - Two Speed - One Winding Reconnectable Consequent Pole Unit with Fusible Switch or Circuit Breaker

Standard Features • Plug-in unit, Sizes 0 - 4 with MCP, Sizes 0 - 3 with

fusible switch. • Circuit Breaker, Sizes 0 - 5. • Fusible switch Sizes 0 - 4. Molded case switch size

5. Fuse clips for Class R fuses. • Electrical starter interlocks-interlock supplied as

required for selective control and to electrically interlock starters. seal-in contact. Size 0 - 1, NO only. Sizes 2 - 4, SPST. Size 5 SPDT.

• Mechanically interlocked starters. Innova/Plus, Sizes 0 - 4.


• 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.


• 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



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)

Auxiliary Contacts Extra Contact Extra Contact

Starter Constant or Variable Torque Constant Horsepower Size High/Low High/Low Type 0 - 1 0/2 2/0 SPSTNO orNC 2 - 4 4/2 2/4 SPSTNO orNC 5 4/2 2/4 SPDT NO & NC

2S1W with MCP Type Breaker: Disconnect Ratings and Space Requirements

Standard Maximum Constant or Variable Constant MCP Unit Control Control

Torque Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V 460-575V 200V 230V 460-575V Size Size Height Factor VA VA Relay Timer

3 3 5 2 2 3 0 125 24 2 50 250 2 17 1/2 7 1/2 10 5 5 7 1/2 1 125 24 2 50 250 2 1

10 15 25 7 1/2 10 20 2 125 24 2 150 250 1 1 25 30 50 20 25 40 3 125 36 3 150 250 2 - 40 50 100 30 40 75 4 125/250 48 4 503 2503 2 175 100 200 60 75 150 5 400 30x721 6 503 2503 2 2

2S1W with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements

Maximum Standard MaximumConstant orVariable Constant Fuse Unit Control Control

Torque Horsepower Starter Switch Clip Unit Space Transformer Transformer200V 230V 460-575V 200V 230V 460-575V Size Size Size Height Factor VA VA Relay Timer

3 3 5 2 2 3 0 30 30 24 2 50 150 2 17 1/2 7 1/2 10 5 5 7 1/2 1 30 60 24 2 50 150 2 1

10 15 25 7 1/2 10 20 2 60 60 24 2 150 250 1 1 25 30 50 20 25 40 3 100 100 48 4 150 250 2 1 40 50 100 30 40 75 4 200 200 721 6 503 2503 4 1 75 100 200 60 75 150 5 400 600 30x721 5 503 2503 2 1

1 Fixed mounted unit 3 Starter supplied with interposing relay(s)

200 & 230V applications



Combination Starter Ratings and Dimensions 2S2W - Two Speed - Two Winding Unit With Fusible Switch or Circuit Breaker

Standard Features • Plug-in unit, Sizes 0 - 4 with circuit breakers, Sizes

0 - 3 with fusible switch. • Circuit Breaker, Sizes 0 - 5. • Fusible switch Sizes 0 - 4. Molded case switches,

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.


• 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



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)


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

200V 230V 460-575V 200V 230V 460-575V Size Size Height Factor VA VA Relay Timer 3 3 5 2 2 3 0 125 24 2 50 250 2 1

7 1/2 7 1/2 10 5 5 7 1/2 1 125 24 2 50 250 2 1 10 15 25 7 1/2 10 20 2 125 24 2 50 250 2 1 25 30 50 20 25 40 3 125 30 2 1/2 150 250 2 1 40 50 100 30 40 75 4 125/250 36 3 503 2503 2 1 75 100 200 60 75 150 5 400 30x721 6 503 2503 2 1

2S2W with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements

Maximum Standard MaximumConstant or Variable Fuse Unit Control Control

Torque Constant Horsepower Starter Switch Clip Unit Space Transf. Transf. 200V 230V 460-575V 200V 230V 460-575V Size Size Size Height Factor VA VA Relay 55BA

3 3 5 2 2 3 0 30 30 24 2 50 150 2 1 7 1/2 7 1/2 10 5 5 7 1/2 1 30 60 24 2 50 150 2 1 10 15 25 7 1/2 10 20 2 60 60 24 2 50 150 2 1 25 30 50 20 25 40 3 100 100 36 3 150 250 2 1 40 50 100 30 40 75 4 200 200 541 4 1/2 503 2503 1 1 75 100 200 60 75 150 5 400 600 30x721 6 503 2503 2 2





Combination Starter Ratings And Dimensions PW - Full Voltage Part Winding Unit with Fusible Switch or Circuit Breaker

Standard Features • Plug-in units.• Sizes 0 - 4, circuit breaker. Sizes 0 - 4, fusible

switch.• Thermal magnetic breaker, Sizes 0 - 5.• Fusible switches.

Sizes 0 - 3. Molded case switches, Sizes 4 -5.Molded case switch,

Size 4, on 230V.Fuse clips for Class R fuses.• Starters: Innova/Plus: 0 - 4.• Bimetallic Ambient Compensated Overload

• Electrical starter interlocks-NO interlock supplied on 1M for 3 wire control. Sizes 1, NO only. Sizes 2 - 4, SPST. Sizes 5, SPDT.


• Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0 - 3, stationary blocks. Sizes 4 - 5 connect to starter.

Typical Schematic



Available Features-Standard Unit Size • Control power transformer-Fused secondary and

dual fused primary. • Pull-apart control terminals. • Solid state overload. • 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. • Communicating devices (ASi, SIMOCODE-PRO)


Size Per Starter Type 0 - 1 3 SPST NO or NC 2 - 4 2 SPST NO or NC

5 3 SPST NO or NC

PW with Circuit Breaker: Disconnect Ratings and Space Requirements Circuit Standard Maximum

Breaker Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer Timer

200V 230V 460-575V Size Size Height Factor VA VA Relay 55BA 10 10 15 1 125 24 2 150 250 2 1 20 25 40 2 125 24 2 150 250 2 1 40 50 75 3 125 30 2 1/2 150 250 2 1 40 50 75 3 250 36 3 150 250 2 1 75 75 150 4 400 36 3 503 1503 2 1

150 150 350 5 600 721 6 503 2503 2 1

PW 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 Timer

200V 230V 460-575V Size Size Size Height Factor VA VA Relay 55BA 10 10 15 1 60 60 24 2 150 250 2 1 20 25 40 2 100 100 30 2 1/2 150 250 2 1 40 50 75 3 200 200 48 4 150 250 2 1 75 75 150 4 400 400 721 6 503 2503 1 1

150 150 350 5 600 600 30x721 6 503 2503 2 2





Combination Starter Ratings and Dimensions RVAT - Reduced Voltage Auto-Transformer Unit with Fusible Switch or Circuit Breaker

Standard Features• Fixed mounted units, Sizes 2 - 6. • Fusible switch Sizes 0 - 4. • Molded case switches, Sizes 5 - 6. Fuse clips sized

for time delay fuses. Class R. • Starter: Innova/Plus, Sizes 2 - 4. Starter (R) and con-

tactor (1S) with mechanical interlock. 3 pole con-tactor (2S).

• Bimetallic Ambient Compensated Overloads. • Auto Transformer

NEMA medium duty 3 coil: 50%, 65%, 80% taps. Class F insulation (minimum). Mounted across bot-tom of structure.

• Electrical starter interlocks-NO on (2S); (R) for 3 wire con-trol. Sizes 2 - 4, SPST. Sizes 5 - 6, SPDT.


• 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



Available Features-Standard Unit Size • Control power transformer-fused secondary and

dual fused primary. • Pull-apart control terminal. • Pull-apart load terminals, Sizes 0 - 2. • Solid state overload. • Thermal-magnetic circuit breakers.

• 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

10 15 25 2 125 421 3 1/2 150 250 2 1 25 30 50 3 125 421 3 1/2 150 250 1 1 40 50 100 4 125/250 481 4 503 2503 2 1 75 100 200 5 400 30X722 6 503 2503 1 -

150 200 400 6 600 30X722 6 503 2503 2 2 - - 400 6 800 30X722 6 503 2503 2 2

RVAT with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements


Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V 460-575V Size Size Size Height Factor VA VA Relay Timer

10 15 25 2 60 60 421 3 1/2 150 250 2 1 25 30 50 3 100 100 481 4 150 250 2 1 40 50 100 4 200 200 601 6 503 2503 - - 75 100 200 5 400 600 30x722 6 503 2503 1 1

150 200 350 6 600 600 30x722 6 503 2503 2 - - - 400 6 800 800 50x7224 6 503 2503 - -

1 Fixed mounted unit 2 Fixed mounted unit - space behind not available 3 Starter supplied with interposing relay(s) 4 Requires 20” deep structure




Combination Starter Ratings And Dimensions YDC - Reduced Voltage Wye Delta Closed Transition

Standard Features• Plug-in units.• Sizes 0 - 6, circuit breaker. Sizes 0 - 5, fusible

switch.• Fusible switches.

Sizes 0 - 3. Molded case switches, Sizes 4 - 5. • Starters: Innova/Plus: 0 - 4. • Bimetallic Ambient Compensated Overloads • Control circuit terminals:

Type A-Connect to component terminal.Type Bd, Bt, C-Unit stationary terminal blocks.

• Electrical starter interlocks-NO interlock For 3 wire control. Sizes 2 - 4, SPST. Sizes 5 - 6, SPDT.


TYPICAL SCHEMATIC



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

20 25 40 2 125 42 3 1/2 150 250 2 2 40 50 75 3 125 42 3 1/2 150 250 2 2 40 50 75 3 125 48 4 150 250 2 1 60 75 150 4 250 48 4 503 1503 2 1

150 150 300 5 600 30x721 6 503 2503 4 2 300 350 700 6 600 40x721 6 503 2503 2 1 300 350 700 6 800 40x721 6 503 2503 2 1

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

20 25 40 2 100 100 48 4 150 250 2 2 40 50 75 3 200 200 60 5 150 250 2 1 60 75 150 4 400 400 721 6 503 2503 2 1

150 150 300 5 600 600 30x721 6 503 2503 4 2

1 Fixed mounted unit2 Starter supplied with interposing relay(s)



Combination Starter Ratings And DimensionsYDO - Reduced Voltage Wye Delta Open Transition Standard Features • Sizes 0 - 6, circuit breaker. Sizes 0 - 5, fusible

switch. • Fusible switches.

Sizes 0 - 3. Molded case switches, Sizes 4 - 5. • Starters: Innova/Plus: 0 - 4. • Bimetal Ambient Compensated Overloads


• Electrical starter interlocks-NO interlock For 3 wire control. Sizes 2 - 4, SPST. Sizes 5 - 6, SPDT.


TYPICAL SCHEMATIC



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

20 25 40 2 125 30 2 1/2 150 250 3 1 40 50 75 3 125 30 2 1/2 150 250 3 1 60 75 150 4 250 36 3 503 1503 2 1

150 150 300 5 600 30x721 6 503 2503 4 2 300 350 700 6 600 40x721 6 503 2503 2 1 300 350 700 6 800 40x721 6 503 2503 2 1

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

20 25 40 2 100 100 36 3 150 250 2 1 40 50 75 3 200 200 48 4 150 250 2 1

60 75 150 4 400 400 721 6 503 2503 2 1

150 150 300 5 600 600 30x721 6 503 2503 4 2

1 Fixed mounted unit3 Starter supplied with interposing relay(s)



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

Max. Height Switch Clip Height Frame Trip Rating Size

Size Amps 1CB 2CB (A.) Amps 1 Sw. 2 SW. 125 125 12 12 30 30 122 122

60 60 122 122

100 100 18 - 250 250 18 - 200 200 30 -

400 400 2413 - 400 400 4213 -

600 600 2413 - 600 600 4213 -

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



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).

Description of Standard Transformers

Single Phase Transformers 1KVA thru 2KVA

240/480V Primary 120V Secondary 50/60 Hz

3KVA thru 5KVA 240/480V Primary 240/120V Secondary 50/60 Hz

7 1/2, 10, 15, 25, 30KVA 240/480V Primary with (2) 2 1/2% FCAN and (4) 2 1/2% FCBM Taps 240/120V Secondary, 60 Hz 220C insulation, 150C rise

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%

FCBN taps 208/120V “Y” - connected Secondary 220C insulation, 150C rise

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

Rating Height * 240V 480V3.0 12 20 15 5.0 12 30 15 7.5 18 40 20 10 18 50 30 15 18 70 40 25 24 125 60

Primary Breaker KVA Unit Size Trip Amps

Rating Height * 480V 9 12 15

15 18 25 25 18 30 30 18 45 45 24 70

Note:No vertical bus behind or below.5.0KVA and larger.20KVA or larger requires 20” deep structures.* Does not include 6” bottom wireway space.

Note: All three phase transformers require 20” deep structures and20” wide doors.



Panel Board

Panel BoardsFull size bolt-on breakers - 1, 2, and 3 pole - 15 to100A.

1 phase 3 wire - 120/240 voltor

3 phase 4 wire - 120/208 volt3 phase 4 wire - 380/220 volt 3 phase 4 wire - 480/277 volt

Aluminum bus - 100 and 225A depending on numberof circuits.

Main lug only - 100 and 225A

Main circuit breaker - 100 and 225A - 12 to 42 cir-cuits.

10,000A 240V short circuit rating. UL listed.

Disconnect Ratings and Space Requirements:Circuit Breaker Panel Boards

Main Bus Unit Number Breaker Rating HeightCircuits Type (Amps) (Amps) (Inches)

18 1Ø-3W - 100 30 30 1Ø-3W - 225 36 42 1Ø-3W - 225 4218 3Ø-4W - 100 30 30 3Ø-4W - 225 36 42 3Ø-4W - 225 4218 1Ø-3W 100 100 3030 1Ø-3W 225 225 36 42 1Ø-3W 225 225 36 18 3Ø-4W 100 100 30 30 3Ø-4W 225 225 36 42 3Ø-4W 225 225 42



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