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    Industrial Circuit Breakers & Protection Devices

    Ensure electrical safety and operational continuity with our robust selection of air breakers, vacuum circuit breakers, and DIN rail-mounted solutions. Designed to provide dependable circuit protection across industrial power systems and critical infrastructure.

    Safeguard your electrical systems with our comprehensive range of circuit breakers. Our comprehensive range features air breakers, ground & test devices, DIN rail mount circuit breakers, vacuum circuit breakers, and panel mount circuit breakers to meet your circuit protection needs. Whether you're safeguarding critical electrical systems, upgrading industrial equipment, or maintaining power distribution networks, our circuit breakers provide the reliable protection and control you need for optimal performance and safety. Shop now for reliable circuit breakers to protect your electrical systems.

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    Results 251-300 of 872.
    SIEMENS QF120

    SIEMENS

    ITE SIEMENS

    QF120

    GROUND-FAULT CIRCUIT INTERRUPTER, CIRCUIT BREAKER ACCESSORY, 120 V, 20 AMP
    ✓ IN STOCK!
    $59.65 Buy Surplus As Low As $49.71
    $49.71
    SIEMENS P1520

    SIEMENS

    ITE SIEMENS

    P1520

    CIRCUIT BREAKER 20AMP 1POLE 120V PUSHMATIC
    ✓ IN STOCK!
    $101.88 Buy Surplus As Low As $61.13
    $61.13
    Repair Yours $300.00
    SIEMENS P120

    SIEMENS

    ITE SIEMENS

    P120

    CIRCUIT BREAKER, P120, 20AMP, 1POLE, 120/240VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $44.11
    $44.11
    SIEMENS JD63F400

    SIEMENS

    ITE SIEMENS

    JD63F400

    CIRCUIT BREAKER, 400AMP, 3POLE, 600VAC, FRAME ONLY, NO LUGS, NO TRIP UNIT
    ✓ IN STOCK!
    $900.00 Buy Surplus As Low As $649.22
    $649.22
    Repair Yours $539.00
    GENERAL ELECTRIC DLTGBCP4

    GENERAL ELECTRIC

    DLTGBCP4

    BUS BAR COUPLING SET 1BAR W/4CONNECTORS
    ✓ IN STOCK!
    $106.00 Buy Surplus As Low As $40.53
    $40.53
    EEC AEG MSS-AU024

    EEC AEG

    MSS-AU024

    DISCONTINUED BY MANUFACTURER, THERMISTOR TRIPPING UNIT 1CHANGE-OVER 24V
    ✓ IN STOCK!
    Buy Surplus As Low As $188.98
    $188.98
    Repair Yours $300.00
    EEC AEG ME81S-C13

    EEC AEG

    ME81S-C13

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 13AMP, 1POLE, C-CURVE, 10KA
    ✓ IN STOCK!
    Buy Surplus As Low As $21.47
    $21.47
    SIEMENS ED61B015

    SIEMENS

    ITE SIEMENS

    ED61B015

    ED61B015 CIRCUIT BREAKER, 15A, ED, CIRCUIT BREAKER, 347V, 15 AMP
    ✓ IN STOCK!
    $1,391.17 Buy Surplus As Low As $695.28
    $695.28
    Repair Yours $582.99
    SIEMENS ED22B015

    SIEMENS

    ITE SIEMENS

    ED22B015

    CIRCUIT BREAKER, 15 AMP, 2 POLE, 240 VAC
    ✓ IN STOCK!
    $275.99 Buy Surplus As Low As $137.55
    $137.55
    Repair Yours $300.00
    SIEMENS B370

    SIEMENS

    ITE SIEMENS

    B370

    BREAKER, 70AMP, 3POLE, 240V, BLACK
    ✓ IN STOCK!
    $117.85 Buy Surplus As Low As $70.71
    $70.71
    Repair Yours $300.00
    WESTINGHOUSE FDB3015

    WESTINGHOUSE

    FDB3015

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 15AMP, 3POLE. 600VAC. 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $450.98
    $450.98
    Repair Yours $370.60
    WESTINGHOUSE FA3015

    WESTINGHOUSE

    FA3015

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, MOLDED, 15AMP, 3POLE, 600VAC, 3 PHASE, BOLT-ON CONNECTION, THERMAL MAGNETIC, LONG-TIME AND INSTANTANEOUS, 14KA@480V
    ✓ IN STOCK!
    Buy Surplus As Low As $204.42
    $204.42
    SIEMENS 3VU13011MM00

    SIEMENS

    3VU13011MM00

    CIRC BREAKER
    ✓ IN STOCK!
    $255.00 Buy Surplus As Low As $169.00
    $169.00
    Repair Yours $300.00
    SIEMENS LL3-F600

    SIEMENS

    ITE SIEMENS

    LL3-F600

    CIRCUIT BREAKER 600AMP 3POLE 600V
    ✓ IN STOCK!
    Buy Surplus As Low As $956.50
    $956.50
    Repair Yours $793.90
    SIEMENS FXD63B225

    SIEMENS

    ITE SIEMENS

    FXD63B225

    MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP UNIT. STANDARD 40 DEG C BREAKER FD FRAME WITH STANDARD BREAKING CAPACITY AND NON INTERCHANGEABLE TRIP. MEETS UL 489 / IEC 60947-2 STA ...
    ✓ IN STOCK!
    $1,062.61 Buy Surplus As Low As $654.14
    $654.14
    Repair Yours $419.00
    SIEMENS EE3-B030

    SIEMENS

    ITE SIEMENS

    EE3-B030

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, TYPE EE, 30 AMP, 3 POLE, 3 PHASE, 10 KA @ 240 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $128.45
    $128.45
    SIEMENS ED42B020

    SIEMENS

    ITE SIEMENS

    ED42B020

    CIRCUIT BREAKER, MOLDED CASE, SENTRON SERIES, 2 POLE, 20 AMPS, 18 KA AT 480 VAC, 50/60 HZ, FIXED, 3 PHASE
    ✓ IN STOCK!
    $489.04 Buy Surplus As Low As $290.20
    $290.20
    Repair Yours $240.87
    SIEMENS ED41B050L

    SIEMENS

    ED41B050L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 480 VAC, 1 POLE, STANDARD 40 DEGREES C BREAKER, 50 AMP
    ✓ IN STOCK!
    $173.09 Buy Surplus As Low As $103.85
    $103.85
    Repair Yours $300.00
    SIEMENS MBKQJ3

    SIEMENS

    ITE SIEMENS

    MBKQJ3

    CIRCUIT BREAKER MOUNTING KIT, QJ FRAME, 3 PHASE, 600 V, 225 A, ALUMINUM
    ✓ IN STOCK!
    $995.18 Buy Surplus As Low As $514.51
    $514.51
    Repair Yours $495.60
    SIEMENS EH3-B030

    SIEMENS

    ITE SIEMENS

    EH3-B030

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 30AMP, 3POLE, 480VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $287.57
    $287.57
    Repair Yours $253.93
    SIEMENS Q360H

    SIEMENS

    Q360H

    Q360H CIRCUIT BREAKER, 60A, Q, CIRCUIT BREAKER, 240V, 60 AMP
    ✓ IN STOCK!
    $95.76 Buy Surplus As Low As $57.45
    $57.45
    Repair Yours $300.00
    SIEMENS 3RV1031-4EA10

    SIEMENS

    3RV1031-4EA10

    DISCONTINUED BY MANUFACTURER 10/01/2020, CIRCUIT BREAKER, SIZE S2, MOTOR PROTECTION, CLASS 10, 22-32 AMP RELEASE, SCREW TERMINALS, STANDARD SWITCHING CAPACITY, (SUCCESSOR: 3RV2031-4EA10)
    ✓ IN STOCK!
    Buy Surplus As Low As $142.47
    $142.47
    Repair Yours $200.00
    NORDSON 274585B

    NORDSON

    274585B

    CIRCUIT BREAKER, 30 AMP, 3 POLE, COIL 24V
    ✓ IN STOCK!
    $198.72 Buy Surplus As Low As $110.10
    $110.10
    Repair Yours $300.00
    GENERAL ELECTRIC TJC-36600G

    GENERAL ELECTRIC

    TJC-36600G

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 600AMP, 3POLE, 600VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,147.32
    $1,147.32
    Repair Yours $952.27
    GENERAL ELECTRIC THFK236F000

    GENERAL ELECTRIC

    THFK236F000

    CIRCUIT BREAKER, HI-BREAK FRAME ONLY, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, TFK FRAME TYPE, 225 AMP, 600 VAC, 3 POLE, 3 PHASE, 25KAIC@480V, BOLT-ON
    ✓ IN STOCK!
    $2,489.39 Buy Surplus As Low As $927.82
    $927.82
    Repair Yours $600.00
    GENERAL ELECTRIC AC361RG

    GENERAL ELECTRIC

    AC361RG

    BUS PLUG, 3 PHASE, 3 WATT, 600V, 30 AMP
    ✓ IN STOCK!
    $3,083.59 Buy Surplus As Low As $1,234.38
    $1,234.38
    EATON CORPORATION EHD2020L

    EATON CORPORATION

    CUTLER HAMMER

    EHD2020L

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 480 VAC, 250 VDC, 2-POLE, 20 AMP, LINE AND LOAD TERMINALS
    ✓ IN STOCK!
    $727.00 Buy Surplus As Low As $410.88
    $410.88
    Repair Yours $319.00
    EATON CORPORATION CH8L125RP

    EATON CORPORATION

    CUTLER HAMMER

    CH8L125RP

    CH MAIN LUG LOADCENTERS, COVER INCLUDED, MAIN LUG ONLY, 125A, 7R, COPPER, NEMA 3R, METALLIC, OVERHEAD, CH, 8, 8, THREE-WIRE, SINGLE-PHASE, 120240 V, 208 Y120, 240 V, 6-10 AWG
    ✓ IN STOCK!
    $194.70 Buy Surplus As Low As $86.91
    $86.91
    Repair Yours $300.00
    GENERAL ELECTRIC AB37B

    GENERAL ELECTRIC

    AB37B

    PANEL BOARD A-SERIES BOX , AB37B
    ✓ IN STOCK!
    $399.24 Buy Surplus As Low As $106.52
    $106.52
    Repair Yours $300.00
    FUJI ELECTRIC EA203B/225

    FUJI ELECTRIC

    EA203B/225

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 225 AMP, 3 POLE
    ✓ IN STOCK!
    Buy Surplus As Low As $715.41
    $715.41
    Repair Yours $698.00
    FUJI ELECTRIC BU-ECA2050

    FUJI ELECTRIC

    BU-ECA2050

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 50AMP, 240VAC, 2-POLE, 50/60HZ
    ✓ IN STOCK!
    $216.00 Buy New $216.00
    $86.40
    Repair Yours $300.00
    EATON CORPORATION MCP331000CR

    EATON CORPORATION

    CUTLER HAMMER

    MCP331000CR

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, MCP SERIES,100 AMP, 3 POLE, 600 V, BOLT-ON, W/ MANUAL TRIP MAGNETIC RANGE 275-1000 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $109.99
    $109.99
    Repair Yours $300.00
    EATON CORPORATION KPRL4FD

    EATON CORPORATION

    CUTLER HAMMER

    KPRL4FD

    CONNECTOR KIT, FOR TWIN MTD, 3 POLE, EHD/FD/FDB/HFD/FDC BREAKERS, PRL4
    ✓ IN STOCK!
    $461.29 Buy Surplus As Low As $274.00
    $274.00
    EATON CORPORATION HMCPS003A0C

    EATON CORPORATION

    CUTLER HAMMER

    HMCPS003A0C

    CIRCUIT BREAKER, MOLDED CASE, SERIES C, 600 VAC MAX, 250 VDC MAX, 3-POLE, 3 AMP, THERMAL MAGNETIC
    ✓ IN STOCK!
    $821.86 Buy Surplus As Low As $414.57
    $414.57
    Repair Yours $358.49
    EATON CORPORATION HMCPE100R3C

    EATON CORPORATION

    CUTLER HAMMER

    HMCPE100R3C

    CIRCUIT BREAKER, SERIES G, 3 POLE, 3 PHASE, 480V, 100A, 14KAIC @ 400V, FEED-THRU, INSTANTANEOUS TRIP, MAGNETIC ONLY
    ✓ IN STOCK!
    $750.00 Buy Surplus As Low As $490.00
    $490.00
    Repair Yours $390.00
    EATON CORPORATION HFD3070

    EATON CORPORATION

    CUTLER HAMMER

    HFD3070

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 600 VAC, 250 VDC, 3-POLE, 70 AMP, LOAD SIDE LUGS ONLY
    ✓ IN STOCK!
    $1,400.38 Buy Surplus As Low As $669.19
    $669.19
    Repair Yours $554.14
    EATON CORPORATION FI3100

    EATON CORPORATION

    CUTLER HAMMER

    FI3100

    (PRICE/EA) FI UNIVERSAL BKR 3P 14KA 100A WITH LINE AND LOAD METRIC END
    ✓ IN STOCK!
    Buy Surplus As Low As $429.83
    $429.83
    Repair Yours $300.00
    GENERAL ELECTRIC THED136150

    GENERAL ELECTRIC

    THED136150

    CIRCUIT BREAKER, 150 AMP, 3 POLE, 600 VAC , THED136150
    ✓ IN STOCK!
    $2,220.17 Buy Surplus As Low As $926.46
    $926.46
    Repair Yours $768.97
    GENERAL ELECTRIC THED136070WL

    GENERAL ELECTRIC

    THED136070WL

    CIRCUIT BREAKER, 70 AMP, 3 POLE, 600VAC, W/ LINE/LOAD LUGS , THED136070WL
    ✓ IN STOCK!
    $1,034.08 Buy Surplus As Low As $572.18
    $572.18
    Repair Yours $514.97
    GENERAL ELECTRIC THED136070

    GENERAL ELECTRIC

    THED136070

    CIRCUIT BREAKER, MOLDED CASE, THERMAL MAGNETIC, 70 AMP, 600 VAC, 250 VDC, 3 POLE, W/LOAD LUGS
    ✓ IN STOCK!
    $1,076.25 Buy Surplus As Low As $582.38
    $582.38
    Repair Yours $420.00
    GENERAL ELECTRIC TEY380

    GENERAL ELECTRIC

    TEY380

    CIRCUIT BREAKER ,80AMP, 3POLE, 480V
    ✓ IN STOCK!
    $291.67 Buy Surplus As Low As $175.00
    $175.00
    Repair Yours $300.00
    GENERAL ELECTRIC TED136050

    GENERAL ELECTRIC

    TED136050

    CIRCUIT BREAKER, MOLDED CASE, 3 POLE, 600 VAC, 50 AMP , TED136050
    ✓ IN STOCK!
    $1,463.85 Buy Surplus As Low As $868.66
    $868.66
    Repair Yours $300.00
    SIEMENS 3VE1015-2DU00

    SIEMENS

    ITE SIEMENS

    3VE1015-2DU00

    DISCONTINUED BY MANUFACTURER, MOTOR STARTER, 0.25/0.4 AMP, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $165.49
    $165.49
    SIEMENS JXD63B200

    SIEMENS

    ITE SIEMENS

    JXD63B200

    CIRCUIT BREAKER, 200-AMP, JXD SERIES, 600V
    ✓ IN STOCK!
    $3,049.51 Buy Surplus As Low As $2,012.68
    $2,012.68
    Repair Yours $1,518.65
    SIEMENS HHED63B070

    SIEMENS

    ITE SIEMENS

    HHED63B070

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SENTRON, 70 AMPS, THERMAL MAGNETIC, EXTRA HIGH INTERRUPT, ED FRAME, 600 VAC, 3 POLE, 40C
    ✓ IN STOCK!
    Buy Surplus As Low As $980.78
    $980.78
    Repair Yours $460.13
    SIEMENS EE3B070

    SIEMENS

    ITE SIEMENS

    EE3B070

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, TYPE EE, 3 POLE, 3 PHASE, 70 AMP, 240V, 10KAIC, STANDARD INTERRUPT, BOLT-ON, LOAD SIDE LUGS, THERMAL MAGNETIC
    ✓ IN STOCK!
    Buy Surplus As Low As $296.97
    $296.97
    Repair Yours $246.49
    SIEMENS EE3-B020

    SIEMENS

    ITE SIEMENS

    EE3-B020

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 20AMP, 3POLE, 240VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $251.50
    $251.50
    SIEMENS LL3-B600

    SIEMENS

    ITE SIEMENS

    LL3-B600

    CIRCUIT BREAKER 600AMP 3POLE 600VAC
    ✓ IN STOCK!
    $3,974.40 Buy Surplus As Low As $1,619.35
    $1,619.35
    Repair Yours $1,344.06
    SIEMENS HE3B050

    SIEMENS

    ITE SIEMENS

    HE3B050

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, HE SERIES, THERMAL MAGNETIC, 50AMP, 3POLE, 600VAC, BOLT-ON
    ✓ IN STOCK!
    Buy Surplus As Low As $299.64
    $299.64
    Repair Yours $300.00
    SIEMENS EH3-B020

    SIEMENS

    ITE SIEMENS

    EH3-B020

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 20 AMP, 3 POLE, 240/480 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $529.00
    $529.00
    Repair Yours $439.07
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