go to top
The World's Leading Online Marketplace for Used, New, and Surplus Industrial Machinery & Equipment ℠
Electrical & Power > Circuit Breakers > Circuit Breakers - Parts, Accessories and Trip Units

Circuit Breakers - Parts, Accessories and Trip Units

warning
1001 - 1050 of first 10000 listings

Basler Be1-951 Over Current Solid State Relay 125/250vac/dc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-95 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-51 Three Phase Time Over Current Solid State Relay 125vdc, Toc 0.75-12, Ioc 1-40x

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-51 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-51/27r Time Over Current Solid State Relay 24vdc, With Voltage Restraint,60 Hz 3p3w 0.5-12 Amps Toc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-51/27R Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-50/51b Over Current Solid State Relay 0.5-15.9 Amps Toc, 1-99 Amps Ioc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model 50/51 Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Moc-2199 Motor Operated Control Input 125vac/ Dc, 0.3 Amps Max

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family MOC Protective Relay Function MOTOR Protective Relay Model Shipping Width 12 in Shipping Height 9 in Shipping Depth 12 in Shipping Weight 10 lb.

Get email updates for newly added Circuit Breakers - Parts, Accessories and Trip Units

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.

Basler Ssr 63-12 Static Voltage Regulator Sensing 120-600vac, Output 63 Volts DC 12 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family SSR Protective Relay Function VOLTAGE Protective Relay Model SSR Shipping Width 12 in Shipping Height 9 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-59n Ground Fault Over Voltage Solid State Relay New 24 Volts DC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function GROUND Protective Relay Model BE1-59 Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 8 lb.

Basler Be1-51/27r Time Over Current Solid State Relay New 24vdc, With Voltage Restraint,60 Hz 3p3w 0.5-12 Amps Toc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-51 Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 40 lb.

Basler Electric Radio Frequency Interface Filter

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

Basler Be1-50/51b Over Current Solid State Relay For WH Co Relay, Ft-21 Case

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-50/51 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-50/51b Over Current Solid State Relay 0.5-15.9 Amps Toc, 1-99 Amps Ioc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-50/51 Shipping Width 17 in Shipping Height 10 in Shipping Depth 17 in Shipping Weight 12 lb.

Basler El-200 Minimum Maximum Excitation Limiter Input 90-660vac, Field Current Input 7 Amps Max

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family EL Protective Relay Function EXCITATION Protective Relay Model EL 200 Shipping Width 12 in Shipping Height 9 in Shipping Depth 12 in Shipping Weight 8 lb.

Basler Be1-79a Reclosing Solid State Relay New 125vac/dc, 250vac/dc, Acr Retrofit With Hold Up Circuit

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function RECLOSER Protective Relay Model BE1-79A Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 8 lb.

Basler Be-1-25 Sync Check Solid State Relay New 125 Volts DC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function SYNCHRONOUS Protective Relay Model BE1-25 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-59n Ground Fault Over Voltage Solid State Relay 24 Volts DC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function GROUND Protective Relay Model BE1-59 Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 8 lb.

Basler Be3-27t Under Voltage Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE3 Protective Relay Function UNDER VOLTAGE Protective Relay Model BE3-27T Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

Basler Be1-25 Sync Check Solid State Relay New

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function SYNCHRONOUS Protective Relay Model BE1-25 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-51 Three Phase Time Over Current Solid State Relay New 125vdc/120vac, 3ph, .5-12a

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-51 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Isolated Contact Sensing Module New For Be1 Relay, 1 Contact Input

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer BASLER Product Family BE1 RELAY For Equipment Type BE1 RELAY MCP Type SENSOR MODULE Control Voltage 240VAC Control Voltage 250VDC Shipping Width 9 in Shipping Height 9 in Shipping Depth 9 in Shipping Weight 3 lb.

Basler Be1-87g Variable Percentage Differential Solid State Relay New 125vdc, Three Phase

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function DIFFERENTIAL Protective Relay Model BE1-87G Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-50 Instantaneous Over Current Solid State Relay Targets

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-50 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-851 Over Current Solid State Relay 48/125vac/dc, With S1 Case

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-851 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-951 Over Current Solid State Relay New

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-95 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-59n Ground Fault Over Voltage Solid State Relay 120vac/dc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function GROUND Protective Relay Model BE1-59 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-851 Over Current Solid State Relay 125/250vac/dc Control

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-851 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-50/51b Over Current Solid State Relay 0.5-15.9 Amps Toc, 1-99 Amps Ioc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-50/51 Shipping Width 15 in Shipping Height 15 in Shipping Depth 15 in Shipping Weight 15 lb.

Basler Be1-51a Time Over Current Solid State Relay 1-12 Amps Toc, 1-40 Amps Ioc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE1 Protective Relay Function OVER CURRENT Protective Relay Model BE1-51 Shipping Width 14 in Shipping Height 16 in Shipping Depth 12 in Shipping Weight 14 lb.

Beckwith #M-3425, Power Relays, Generator Protection, IEEE C37.102

Aucto | San Francisco, CA
Seller: Aucto
Location: El Paso, TX
Mfr: Beckwith
THE BECKWITH M-3425 IS A MICROPROCESSOR-BASED COMPREHENSIVE INTEGRATED PROTECTION SYSTEM DESIGNED FOR GENERATOR APPLICATIONS OF ALL SIZES, CAPABLE OF PROTECTING ANY PRIME MOVER, GROUNDING, OR CONNECTION TYPE. IT EXCEEDS IEEE C37.102 STANDARDS FOR GENERATOR PROTECTION. THIS POWER RELAY SYSTEM INCORPORATES A FULL SUITE ...more

Dranetz Bmi Voltage Module For Datanode Series 5500

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Bmi
Manufacturer Miscellaneous Other Manufacturers Product Family TSX For Equipment Type SWGR MSSP Type POWER MODULE Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

Dranetz Bmi Current Module For Datanode Series 5500

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Bmi
Manufacturer Miscellaneous Other Manufacturers Product Family TSX For Equipment Type SWGR MSSP Type POWER MODULE Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

Boltswitch 120 Volts AC Capacitor Trip Device New

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Boltswitch
Manufacturer BOLTSWITCH Product Family BOLTSWITCH For Equipment Type SWITCH MCP Type CAPACITOR TRIP Control Voltage 120VAC Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 3 lb.

Boltswitch 30 Amps Dead Front Fuse Holder Unused Surplus 2 Pole, 250vac/dc, For Class H Fuse

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Boltswitch
Manufacturer BOLTSWITCH For Equipment Type SWITCHGEAR MCP Type FUSE HOLDER Control Voltage 240VAC Control Voltage 250VDC Shipping Width 15 in Shipping Height 17 in Shipping Depth 13 in Shipping Weight 12 lb.

Boltswitch 120 Volts AC Capacitor Trip Device New

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Boltswitch
Manufacturer BOLTSWITCH Product Family BOLTSWITCH For Equipment Type SWITCH MCP Type CAPACITOR TRIP Control Voltage 120VAC Shipping Width 22 in Shipping Height 24 in Shipping Depth 20 in Shipping Weight 50 lb.

Boltswitch Ground Fault Relay New 120vac, 100-1200 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Boltswitch
Manufacturer Boltswitch Product Family GFR Protective Relay Function GROUND Protective Relay Model GFR Shipping Width 7 in Shipping Height 7 in Shipping Depth 7 in Shipping Weight 1 lb.

GE Non Baffled Box Barrier Vent Cap For Am 13.8-500-6 / Am 13.8-750 Tall Boy

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Boy
Manufacturer Electric Product Family MAGNE-BLAST For Equipment Type AM 13.8-500 For Equipment Type AM 13.8-750 Type of Insulator VENT Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 3 lb.

Bbc 27h Circuit Shield Instantaneous Under Voltage (uv) Relay 120vac, Range 60-110v, 2 Form C Contacts, Standard Case

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family CIRCUIT SHIELD Protective Relay Function UNDER VOLTAGE Protective Relay Model 27H Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 10 lb.

2000 Amps Bbc Current Transformer Lss For Lk-20

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LK Product Family LSS Type of Programmer CT SINGLE RATIO For Programmer Type LSS For Breaker Type LK-20 Primary Amperage Rating 2000A Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 4 lb.

800 Amps Bbc Lk Drawout Substructure For Lk-8, Manually Or Electrically Operated Breaker

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LK For Equipment Type LK-8 Substructure Amperage 800A Shipping Width 24 in Shipping Height 24 in Shipping Depth 29 in Shipping Weight 100 lb.

Bbc Stationary Secondary Disconnect 12 Pt For 38h KV Switchgear

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family HK For Equipment Type 38HK SWGR Number of points on Secondary 12 PT Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 2 lb.

3200 Amps Bbc Current Transformer For Lk-32

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LK Product Family LSS Type of Programmer CT SINGLE RATIO For Programmer Type LSS For Breaker Type LK-32 Primary Amperage Rating 3200A Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Bbc Power Shield Lss4 Solid State Programmer Lsg With Targets And Ground

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family POWER SHIELD Type LSS4 Functions LONG TIME, SHORT TIME, GROUND FAULT Targets Yes Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 in Shipping Weight 10 lb.

1600 Amps Bbc Current Transformer Power Shield For La-1600

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LA Product Family POWER SHIELD Type of Programmer CT SINGLE RATIO For Programmer Type POWER SHIELD For Breaker Type LA-1600 Primary Amperage Rating 1600A Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Bbc Vacuum Interrupter Bottle Assembly For 38hkv1500

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family HVK Product Type BOTTLE For Equipment Type 38HKV Unit Amperage 1200A Unit Amperage 2000A Vacuum Bottle Number RVI-RP-728 Shipping Width 24 in Shipping Height 24 in Shipping Depth 24 in Shipping Weight 25 lb.

Bbc Mechanism Motor Link For Lk8 / Lk20

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LK For Equipment Type LK Misc Mechanism Part Type LINK Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 5 lb.

Bbc Gr-5 Ground Shield Ground Fault Relay 120vac, 5-50 Amps Toc, 2-24 Cycles

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family GROUND SHIELD Protective Relay Function GROUND Protective Relay Model GR Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 5 lb.

Bbc Power Shield Lss4 Solid State Programmer Lsg With Targets And Ground

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family POWER SHIELD Type LSS4 Functions LONG TIME, SHORT TIME, GROUND FAULT Targets Yes Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 in Shipping Weight 10 lb.

Bbc 51y Circuit Shield Three Phase Over Current Relay Unused Surplus 120vac, 1.5-6 Amps Toc, 2-20 Amps Ioc

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family CIRCUIT SHIELD Protective Relay Function OVER CURRENT Protective Relay Model 51Y Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 10 lb.

800 Amps Bbc Current Transformer Lss For Lk-8

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LK Product Family LSS Type of Programmer CT SINGLE RATIO For Programmer Type LSS For Breaker Type LK-8 Primary Amperage Rating 800A Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

3200 Amps Bbc Lk Drawout Substructure For Lk-32, Manually Or Electrically Operated Breaker

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family LK For Equipment Type LK-32 Substructure Amperage 3200A Shipping Width 30 in Shipping Height 30 in Shipping Depth 35 in Shipping Weight 175 lb.

Bbc 27h Circuit Shield Instantaneous Under Voltage (uv) Relay 120vac, Range 60-110v, 2 Form C Contacts, Test Case

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Brown Boveri
Manufacturer ABB / ITE / BBC Product Family CIRCUIT SHIELD Protective Relay Function UNDER VOLTAGE Protective Relay Model 27H Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 10 lb.