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Electrical & Power > Circuit Breakers > Circuit Breakers - Parts, Accessories and Trip Units

Circuit Breakers - Parts, Accessories and Trip Units

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1201 - 1250 of first 10000 listings

Century Spring New For 5hk250 Ground Truck

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Century
Manufacturer Miscellaneous Other Manufacturers Product Family HK For Equipment Type HK Type of Frame Part SPRING Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

1600 Amps ITE Current Limiting Fuse Cordon Type Cp

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Chicago Pneumatic
Manufacturer ABB / ITE / BBC Product Family CP Kind of Fuse CURRENT Type of Fuse CP Fuse Rating (V) 600 Fuse Rating (A) 1600A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 3 lb.

1600 Amps ITE Current Limiting Fuse Cordon Type Cp

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Chicago Pneumatic
Manufacturer ABB / ITE / BBC Product Family CP Kind of Fuse CURRENT Type of Fuse CP Fuse Rating (V) 600 Fuse Rating (A) 1600A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 3 lb.

Victor Station Post Insulator 14 Inch Tr 208 3 Bolt Circle, Bil 150

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Circle
Manufacturer VICTOR Product Family SWITCHGEAR For Equipment Type SWITCHGEAR Type of Insulator STAND OFF Shipping Width 14 in Shipping Height 16 in Shipping Depth 12 in Shipping Weight 23 lb.

Square D Merlin Gerin St-cm1 Solid State Programmer Li For Cm Frame

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cm
Manufacturer Square D Product Family CM Product Family ST Type ST Functions LONG TIME, INSTANTANEOUS Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

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Circuit Breakers - Parts, Accessories, and Trip Units enhance circuit breaker functionality and reliability in electrical systems. Commonly used in industrial, commercial, and utility applications, these components provide customizable protection, enable remote control, and ensure efficient system monitoring and control.

Square D Merlin Gerin St206d Solid State Programmer Li For Cm Frame

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cm
Manufacturer Square D Product Family CM Product Family ST Type ST206D Functions LONG TIME, INSTANTANEOUS Targets No Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Square D Merlin Gerin Auxiliary Switch 2no/2nc Form C For Cm

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cm
Manufacturer Merlin Gerin Manufacturer Square D Product Family CM For Equipment Type CM Auxiliary Switch Stages 2 Type of Auxiliary Switch FORM C Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

Consolidated Bearing Close Spring Prop Bearing New For Magne-blast With Ml-13 Mechanism

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Consolidated
Manufacturer Consolidated Manufacturer Electric Product Family MAGNE-BLAST For Equipment Type ML-13 MECH Misc Mechanism Part Type BEARING Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

65 Amps Cooper X-limiter Indoor / Outdoor Fuse 5.5 KV

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family X-LIMTER Kind of Fuse POWER Type of Fuse X-LIMITER Fuse Rating (V) 5.5KV Fuse Rating (A) 65A Shipping Width 18 in Shipping Height 24 in Shipping Depth 18 in Shipping Weight 50 lb.

Cooper Sidewall Mount Outer Tube Unused Surplus With Contacts And Gasket

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family SWGR Type of Current Carrying Part FUSE HOLDER Shipping Width 6 in Shipping Height 6 in Shipping Depth 24 in.

65 Amps Cooper Capacitor Bank Fuse New 4.3kv, 50k Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family IVBTB Kind of Fuse CURRENT Type of Fuse IVBTB Fuse Rating (V) 4.3KV Fuse Rating (A) 65A Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 in Shipping Weight 5 lb.

Cooper 2 Point Terminal Stud Block 600v, 250amp

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family SWITCHGEAR MCP Type TERMINAL BLOCK Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 2 lb.

15 Amps Cooper Fuse Link Type T Removable Head

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family Kind of Fuse POWER Type of Fuse T Fuse Rating (V) 27KV Fuse Rating (A) 15A Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 in Shipping Weight 5 lb.

Cooper Bayonet Fuse Link New 40a, Type B

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family SWGR Type of Current Carrying Part FUSE HOLDER Shipping Width 6 in Shipping Height 6 in Shipping Depth 24 in Shipping Weight 10 lb.

35 Amps Cooper Nx Power Fuse Unused Surplus 4.3kv, 50k Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family NX Kind of Fuse POWER Type of Fuse NX Fuse Rating (V) 4.3KV Fuse Rating (A) 35A Shipping Width 12 in Shipping Height 12 in Shipping Depth 17 in Shipping Weight 3 lb.

Cooper Power Well Bushing New For Transformer

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family TRANSFORMER For Equipment Type TRANSFORMER Type of Insulator BUSHING Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 3 lb.

50 Amps Cooper Nx Power Fuse 5 KV

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family NX Kind of Fuse POWER Type of Fuse NX Fuse Rating (V) 5KV Fuse Rating (A) 50A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

40 Amps Cooper Nx Power Fuse

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family NX Kind of Fuse POWER Type of Fuse NX Fuse Rating (V) 8KV Fuse Rating (A) 40A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

Cooper Power Deadbreak Junction 2 Pt, "u" Strap, 353kv, 600 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family SWGR Type of Current Carrying Part STRAP Unit Amperage 600A Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 in Shipping Weight 10 lb.

25 Amps Cooper Capacitor Bank Fuse New 4.3kv, 50k Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family IVBTB Kind of Fuse POWER Type of Fuse IVBTB Fuse Rating (V) 4.3KV Fuse Rating (A) 25A Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 in Shipping Weight 5 lb.

Cooper Power Kme Control Recloser Power Supply New For Form 4c

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Cooper
Manufacturer Cooper Product Family KME For Equipment Type SWITCHGEAR MCP Type POWER SUPPLY Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 5 lb.

Crompton 252 Phase Balance Relay With Under Voltage 480vac, 0-10 Sec Delay, 15% Uv

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 252 Protective Relay Function PHASE BALANCE Protective Relay Model 252 Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 2 lb.

Crompton 252 Current Transition Relay New 120 Volts AC 5 Amps, 0-10 Seconds, 40-120%

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 252 Protective Relay Function TRANSFER Protective Relay Model 252 Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

Crompton 252 Differential Relay New 120vac, 0v Range 100-125%, Diff Range 1-15%

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 252 Protective Relay Function DIFFERENTIAL Protective Relay Model 252 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Crompton 252 Phase Balance Relay With Under Voltage New 208vac, 0-10 Sec Delay, 15% Uv

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 252 Protective Relay Function PHASE BALANCE Protective Relay Function UNDER VOLTAGE Protective Relay Model 252 Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

Crompton 252 Phase Balance Relay With Undervoltage New 120vac, 5 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 252 Protective Relay Function UNBALANCE Protective Relay Function UNDER VOLTAGE Protective Relay Model 252 Shipping Width 9 in Shipping Height 9 in Shipping Depth 9 in Shipping Weight 3 lb.

Crompton 239 Switchboard Voltmeter Relay 0-300vac, .3-20 Seconds

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 239 Protective Relay Function MONITOR Protective Relay Model 239 Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 2 lb.

Crompton 239 Switchboard Voltmeter Relay Unused Surplus 0-300vac, With Hi/lo Switch

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 239 Protective Relay Function MONITOR Protective Relay Model 239 Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 1 lb.

Crompton 256 Series Watt Transducer New 3 Phase 3 Wire Unbalanced, 120vac, 5a/120 Volts AC Input

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 256 Protective Relay Function TRANSDUCER I/O Protective Relay Model TWMU Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Crompton 256 Protector Trip Relay New 5a, 120 Volts AC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 256 Protective Relay Function FEEDER Protective Relay Model PLLU Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Crompton 253 Protector Trip Relay New 5a, 120 Volts AC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crompton
Manufacturer Crompton Product Family 253 Protective Relay Function FEEDER Protective Relay Model PVMU Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Square D I-line Upper Crown Cover For Ma Mccb

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Crown
Manufacturer Square D Product Family I-LINE For Equipment Type MA36800 Type of Insulator COVER Shipping Width 8 in Shipping Height 8 in Shipping Weight 2 lb.

Nss Current Transformer Spacer For Vcp-w Swgr

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Miscellaneous Other Manufacturers Product Family VCP-W For Equipment Type VCP-W Type of Frame Part SPACER Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 2 lb.

1200 Amps Sa Current Transformer, Static Trip Iii For Rl-3200

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Siemens / Allis Chalmers Product Family RL Product Family STATIC TRIP III Type of Programmer CT SINGLE RATIO For Programmer Type STATIC TRIP III For Breaker Type RL Primary Amperage Rating 1200A Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

ABB 10 Point Ft-1 Flexitest Switch 8 Current, Clear Cover

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer ABB / ITE / BBC Product Family FLEXITEST For Equipment Type SWITCHGEAR Tool Type TEST PLUG Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 2 lb.

1600-3200 Amps Urc AC Pro Multi Ratio Current Transformer

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Utility Relay Co Product Family AC PRO Type of Programmer CT MULTI RATIO For Programmer Type AC PRO For Breaker Type Primary Amperage Rating 1600A-3200A Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

6 Amps Gould/shawmut Current Limiting Fuse Class J

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer ABB / ITE / BBC Product Family A4J Kind of Fuse CURRENT Type of Fuse A4J Fuse Rating (V) 600 Fuse Rating (A) 6A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

Basler Be1-67n Ground Directional Over Current Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Basler Product Family BE1 Protective Relay Function DIRECTIONAL Protective Relay Model BE1-67N Shipping Width 18 in Shipping Height 28 in Shipping Depth 18 in Shipping Weight 15 lb.

2000 Amps Brush Current Limiting Fuse

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer BRUSH Product Family LCL Kind of Fuse CURRENT Type of Fuse LCL Fuse Rating (V) 600 Fuse Rating (A) 2000A Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 3 lb.

800 Amps Brush Current Limiting Fuse Class L, Time Delay For Rl

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer BRUSH Product Family LCL Kind of Fuse CURRENT Type of Fuse LCL Fuse Rating (V) 600 Fuse Rating (A) 800A Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 5 lb.

6 Amps Limitron Current Limiting Fuse Class J

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Bussman Product Family JKS Kind of Fuse CURRENT Type of Fuse JKS Fuse Rating (V) 600 Fuse Rating (A) 6A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

400 Amps Hi-cap Current Limiting Fuse Time Delay, Class L

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Bussman Product Family CL Kind of Fuse CURRENT Type of Fuse CL Fuse Rating (V) 600 Fuse Rating (A) 400A Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 2 lb.

400 Amps Cefco Current Limiting Fuse Class Rk5

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer CEFCO Product Family RK5 Kind of Fuse CURRENT Type of Fuse CRS-R Fuse Rating (V) 600 Fuse Rating (A) 400A Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 4 lb.

10 Amps Fusetron Current Limiting Fuse

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Cooper Product Family FNM Kind of Fuse CURRENT Type of Fuse FNM Fuse Rating (V) 250 Fuse Rating (A) 10A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

5 Amps Fusetron Current Limiting Fuse

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Cooper Product Family FNM Kind of Fuse CURRENT Type of Fuse FNM Fuse Rating (V) 250 Fuse Rating (A) 5A Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

1200 Amps Econolim Current Limiting Fuse Class L

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Econolim Product Family LCL Kind of Fuse CURRENT Type of Fuse LCL Fuse Rating (V) 600 Fuse Rating (A) 1200A Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 5 lb.

GE Mif P Time Over Current Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Electric Product Family M Protective Relay Function OVER CURRENT Protective Relay Model MIF P Shipping Width 14 in Shipping Height 16 in Shipping Depth 12 in Shipping Weight 15 lb.

GE Ifc Time Over Current Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Electric Product Family IFC Protective Relay Function OVER CURRENT Protective Relay Model IFC Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

GE Iac Time Over Current Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Electric Product Family IAC Protective Relay Function OVER CURRENT Protective Relay Model IAC Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

800-2000 Amps Iti Multi Ratio Current Transformer Mvt / Entelliguard For GE Akrt-50 / Wp-20

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Current
Manufacturer Instrument Transformer Product Family AKR Product Family ENTELLIGUARD Product Family MVT Product Family WAVE PRO Type of Programmer CT MULTI RATIO For Programmer Type ENTELLIGUARD For Programmer Type MVT For Breaker Type AKRT-50 For Breaker Type WP-20 Primary Amperage Rating 2000A Primary Amperage Rating ...more