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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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Urc AC Pro Solid State Programmer Lsig New For Ak-50, Vertical Mount, With Communications, 9v Lithium Battery

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Allis-Chalmers
Manufacturer Utility Relay Type AC PRO Functions LONG TIME, SHORT TIME, INSTANTANEOUS, GROUND FAULT Targets Yes Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Time Mark Model 295 Capacitor Trip Device New 120 Volts AC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Allis-Chalmers
Manufacturer Time Mark Product Family 295 For Equipment Type SWITCHGEAR MCP Type CAPACITOR TRIP Control Voltage 120VAC Shipping Width 5 in Shipping Height 9 in Shipping Depth 4 in Shipping Weight 2 lb.

Urc AC Pro 1 Amps Solid State Programmer Lsig Horizontal Mount, 9 Volt Lithium Battery

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Allis-Chalmers
Manufacturer Utility Relay Type AC PRO Functions LONG TIME, SHORT TIME, INSTANTANEOUS, GROUND FAULT Targets Yes Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 2 lb.

Als 125 Volts DC Shunt Trip Coil New For Alstom Vah 13.8-63-50-27,15 KV Generator Brkr

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Alstom
Manufacturer Alstom Product Family VAH For Equipment Type ALSTOM VAH Type of Coil TRIP Control Voltage 125VDC Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 5 lb.

Als 125 Volts DC Close Coil New For Alstom Vah 13.8-63-50-27,15 KV Generator Brkr

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Alstom
Manufacturer Alstom Product Family VAH For Equipment Type ALSTOM VAH Type of Coil CLOSE Control Voltage 125VDC Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 5 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.

Ametek Substation Reflash Annunciator New 125 Volts DC

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Ametek
Manufacturer Ametek For Equipment Type SWITCHGEAR MCP Type ANNUNCIATOR Control Voltage 125VDC Shipping Width 18 in Shipping Height 18 in Shipping Depth 18 in Shipping Weight 20 lb.

Ametek Panalarm Alert Panel 24vdc, 1.0 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Ametek
Manufacturer Ametek For Equipment Type SWITCHGEAR MCP Type ANNUNCIATOR Control Voltage 24VDC Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 2 lb.

Ametek Panalarm Alert Panel 120vac, 0.2 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Ametek
Manufacturer Ametek For Equipment Type SWITCHGEAR MCP Type ANNUNCIATOR Control Voltage 120VAC Shipping Width 6 in Shipping Height 6 in Shipping Depth 12 in Shipping Weight 3 lb.

Square D Arc Blade Assembly New For Hvl Switch

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family HVL Type of Current Carrying Part ARC BLADE Unit Amperage 1200A Unit Amperage 600A For Equipment Type HVL SWITCH Shipping Width 6 in Shipping Height 24 in Shipping Depth 6 in Shipping Weight 2 lb.

GE Arc Chute Retainer For Akr-30 / Akr-50 With Molded Type Arc Chute

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Electric Product Family AKR For Equipment Type AKR-30 For Equipment Type AKR-50 Type of Frame Part RETAINER Shipping Width 12 in Shipping Height 9 in Shipping Depth 12 in Shipping Weight 2 lb.

Merlin Gerin Arc Chute Assembly For Masterpact Mc / Mp

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Merlin Gerin Product Family MASTERPACT For Equipment Type MC For Equipment Type MP KA/MVA Rating 65KA Construction Type STANDARD Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 10 lb.

Ss 362 KV Arc Horn Assembly New For Ev-2 Switch

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Miscellaneous Other Manufacturers Product Family EV-2 Type of Current Carrying Part ARC HORN Unit Amperage 2000A For Equipment Type EV-2 Shipping Width 18 in Shipping Height 18 in Shipping Depth 18 in Shipping Weight 25 lb.

Square D Arc Chute Assemebly For Type Bp Bolt Loc Switch, 3000 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family BOLT-LOC For Equipment Type 9810 Unit Amperage 3000A Construction Type NON-ASBESTOS Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 3 lb.

Square D Arc Chute Assembly For Masterpact Mc / Mp

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family MASTERPACT For Equipment Type MC For Equipment Type MP Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Square D Type S Arc Chute Assembly For Masterpact Nw

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family MASTERPACT For Equipment Type NW Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Square D Stationary Arc Contact Assembly For Type Bp Bolt Loc Switch, 3000 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family BOLT-LOC Type of Current Carrying Part STATIONARY ARCING Unit Amperage 3000A For Equipment Type 9810 Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 1 lb.

Square D Arc Chute Assemebly For Hvl Switch, All Kv Ratings

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family POWER ZONE For Equipment Type HVL SWITCH Unit Amperage 1200A Unit Amperage 600A Construction Type MOLDED Shipping Width 14 in Shipping Height 24 in Shipping Depth 14 in Shipping Weight 25 lb.

Square D Arc Chute Assembly Unused Surplus For Masterpact Mtz2 / Mtz3 Type L1

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family MASTERPACT For Equipment Type MTZ Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Square D Arc Chute Assembly New For Hvl Switch, All Kv Ratings

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family POWER ZONE For Equipment Type HVL SWITCH Unit Amperage 1200A Unit Amperage 600A Construction Type MOLDED Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 3 lb.

Square D Type G Arc Chute Assembly Unused Surplus For Masterpact Nw

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family MASTERPACT For Equipment Type NW Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Square D Arc Blade Assembly For Hvl Switch

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family HVL Type of Current Carrying Part ARC BLADE Unit Amperage 1200A Unit Amperage 600A For Equipment Type HVL SWITCH Shipping Width 6 in Shipping Height 24 in Shipping Depth 6 in Shipping Weight 2 lb.

Square D Arc Chute Assembly Unused Surplus For Masterpact Mtz2 / Mtz3 Type N1/na/hf, Type H1/h2/ha (mtz2 08 To Mtz2 40)

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family MASTERPACT For Equipment Type MTZ Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Square D Type S Arc Chute Assembly Unused Surplus For Masterpact Nw

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Square D Product Family MASTERPACT For Equipment Type NW Shipping Width 10 in Shipping Height 10 in Shipping Depth 10 in Shipping Weight 5 lb.

Urc Arc Chute Hood New For Kb-600, Steel Back

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Arc Specialties
Manufacturer Utility Relay Product Family K For Equipment Type KB-600 Type of Insulator COVER Shipping Width 6 in Shipping Height 6 in Shipping Depth 6 in Shipping Weight 2 lb.

Asco Synchropower Generator Sensing Panel

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Asco
Manufacturer ASCO Product Family POWER SENSOR For Equipment Type SWGR MSSP Type SENSOR Shipping Width 12 in Shipping Height 12 in Shipping Depth 12 in Shipping Weight 8 lb.

Baldor 230/460 Volts AC Pump Motor 3 Hp New 3450 Rpm, 182t Frame, Class F, 7.2/3.6 A

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Baldor
Manufacturer Miscellaneous Other Manufacturers Product Family PUMP For Equipment Type PUMP Motor Type PUMP Motor Voltage 230VAC Motor Voltage 460VAC Shipping Width 24 in Shipping Height 24 in Shipping Depth 24 in Shipping Weight 150 lb.

Barber Colman 115/230 Volts AC Logic Controller

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Barber-Colman
Manufacturer Miscellaneous Other Manufacturers Product Family DYN2 For Equipment Type SWITCHGEAR MCP Type CONTROLLER Control Voltage 115/230VAC Shipping Width 15 in Shipping Height 25 in Shipping Depth 15 in Shipping Weight 15 lb.

Basler Es-27 Undervoltage Relay New

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family ES Protective Relay Function UNDER VOLTAGE Protective Relay Model ES-27 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-59nc Neutral Over Voltage 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 VOLTAGE Protective Relay Model BE1-59 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Be1-27/59 Under/over Voltage Solid State Relay 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 UNDER/OVER VOLTAGE Protective Relay Model BE1-27/59 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-67 Phase Directional Over Current Relay 3 Phase

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

Basler Be1-59 Over Voltage Solid State Relay 125vac/dc

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

Basler Be1-87t Transformer Differential Solid State Relay 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 DIFFERENTIAL Protective Relay Model BE1-87 Shipping Width 15 in Shipping Height 15 in Shipping Depth 12 in Shipping Weight 10 lb.

Basler Edm-200 Exciter Diode Monitor Input 120-600vac, 10 Amps

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family EDM Protective Relay Function MONITOR Protective Relay Model Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 4 lb.

Basler 120/240 Volts AC Esd Capacitor Trip Device New Electronic Storage Device

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer BASLER Product Family ESD For Equipment Type SWITCHGEAR MCP Type CAPACITOR TRIP Control Voltage 120/240VAC Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

Basler Be1-87t Transformer Differential Solid State Relay New 48 Volts DC

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 BE1-87 Shipping Width 17 in Shipping Height 10 in Shipping Depth 17 in Shipping Weight 10 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 12 in Shipping Height 12 in Shipping Depth 13 in Shipping Weight 15 lb.

Basler Digital Excitation Control System New 125vac/dc, Voltage Regulator Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family DESC Protective Relay Function EXCITATION Protective Relay Model DECS-250 Shipping Width 18 in Shipping Height 18 in Shipping Depth 18 in Shipping Weight 23 lb.

Basler Be1-51/27c Time Over Current 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 OVER CURRENT Protective Relay Model BE1-51/27C Shipping Width 14 in Shipping Height 14 in Shipping Depth 14 in Shipping Weight 16 lb.

Basler Be3-51 Over Current Relay Unused Surplus

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE3 Protective Relay Function OVER CURRENT Protective Relay Model BE3-51 Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

Basler 2/4:1/2 Control Power Transformer 240/480:120/240

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer BASLER Product Family BE1 For Equipment Type SWGR Primary Voltage 240 Primary Voltage 480 Secondary Voltage 120 Secondary Voltage 240 VA / KVA RATING.88KVA VA / KVA RATING 1000VA Ratio 2:1 Ratio 4:1 Shipping Width 14 in Shipping Height 16 in Shipping Depth 12 in Shipping Weight 38 lb.

Basler Be3-27 Under Voltage Relay 3 Phase, 480 Volts AC

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 BE3-27 Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 3 lb.

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

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 Be3-47n/27 Phase Balance With Under Voltage (uv) Digital Relay 120vac, 5-15%, 0-10 Sec, 3phase / 3wire

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE3 Protective Relay Function PHASE BALANCE Protective Relay Model BE3-47/27 Shipping Width 12 in Shipping Height 12 in Shipping Depth 9 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 10 lb.

Basler Be1-51 Three Phase Time Over Current Solid State Relay 0.5-12 Amps Toc, 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 OVER CURRENT Protective Relay Model BE1-51 Shipping Width 14 in Shipping Height 16 in Shipping Depth 12 in Shipping Weight 16 lb.

Basler 120/240 Volts AC Esd Capacitor Trip Device Electronic Storage Device

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer BASLER Product Family ESD For Equipment Type SWITCHGEAR MCP Type CAPACITOR TRIP Control Voltage 120/240VAC Shipping Width 8 in Shipping Height 8 in Shipping Depth 8 in Shipping Weight 2 lb.

Basler Be3-25a Auto Synchronizer Relay

National Switchgear - Parts | Lewisville, TX
Seller: National Switchgear - Parts
Location: Lewisville, TX
Mfr: Basler
Manufacturer Basler Product Family BE3 Protective Relay Function SYNCHRONOUS Protective Relay Model BE3-25A 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 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 14 in Shipping Height 16 in Shipping Depth 12 in Shipping Weight 15 lb.

Basler Be1-59nc Neutral Over Voltage Solid State Relay 125vac/dc

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