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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 501-550 of 892.
    SIEMENS 3RV1031-4DA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1031-4DA10

    DISCONTINUED BY MANUFACTURER 10/01/2020, CIRCUIT BREAKER, SIZE S2, CLASS 10 AMP / RELEASE 18...25 AMP / SHORT CIRCUIT RELEASE: 325 AMP, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, FOR MOTOR ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$202.22
    CAN$202.22
    Repair Yours CAN$360.00
    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 CAN$217.21
    CAN$217.21
    Repair Yours CAN$360.00
    SIEMENS BE120

    SIEMENS

    ITE SIEMENS

    BE120

    CIRCUIT BREAKER, TYPE BLE, GFCI 30MA, 20AMP, 1 POLE, 120VAC, 10KA
    ✓ IN STOCK!
    CAN$220.00 Buy Surplus As Low As CAN$138.50
    CAN$138.50
    Repair Yours CAN$250.00
    SIEMENS BQ3B020

    SIEMENS

    ITE SIEMENS

    BQ3B020

    MOLDED CASE THERMAL MAGNETIC. BQ FRAME. 240 VAC AT 60 HZ. 20 AMPERE AT 40 DEG C. 3 POLE. INTERRUPTING RATING 10 KILOAMPERE. TERMINAL LOAD LUG. SIZE 3 INCH W X 3 INCH D X 3-3/4 INCH H. BQ MOD ...
    ✓ IN STOCK!
    CAN$185.24 Buy Surplus As Low As CAN$111.14
    CAN$111.14
    Repair Yours Contact Us
    EATON CORPORATION QBGF1020

    EATON CORPORATION

    CUTLER HAMMER

    QBGF1020

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 20AMP, 1POLE, 120VAC, GROUND FAULT
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$227.74
    CAN$227.74
    Repair Yours CAN$362.15
    EATON CORPORATION WMS-3C40

    EATON CORPORATION

    CUTLER HAMMER

    WMS-3C40

    CIRCUIT BREAKER, 40AMP, 3POLE, 480 VAC
    ✓ IN STOCK!
    CAN$134.01 Buy Surplus As Low As CAN$95.56
    CAN$95.56
    Repair Yours CAN$360.00
    GENERAL ELECTRIC SRPF250A150

    GENERAL ELECTRIC

    SRPF250A150

    CIRCUIT BREAKER RATING PLUG, 150AMP
    ✓ IN STOCK!
    CAN$413.44 Buy Surplus As Low As CAN$248.06
    CAN$248.06
    GENERAL ELECTRIC SRPF250A200

    GENERAL ELECTRIC

    SRPF250A200

    RATING PLUG, 200 AMP, 480 V AC, 3-POLE, SPECTRA F
    ✓ IN STOCK!
    CAN$406.00 Buy Surplus As Low As CAN$182.96
    CAN$182.96
    GENERAL ELECTRIC TED134015WL

    GENERAL ELECTRIC

    TED134015WL

    CIRCUIT BREAKER, E150-LINE STYLE, TED TYPE, THERMAL MAGNETIC TRIP, 3 POLE, 15 AMP, 3 PHASE, 480 VAC/250 VDC RATING, 18KA@480V
    ✓ IN STOCK!
    CAN$956.39 Buy Surplus As Low As CAN$573.83
    CAN$573.83
    Repair Yours CAN$393.61
    GENERAL ELECTRIC TEY320

    GENERAL ELECTRIC

    TEY320

    CIRCUIT BREAKER, Q-LINE, TYPE TEY, 3 POLE, 3 PHASE, 20 AMP, 277/480V, 14KAIC @ 480V, STANDARD INTERRUPT, BOLT-ON, THERMAL MAGNETIC
    ✓ IN STOCK!
    CAN$431.29 Buy Surplus As Low As CAN$258.77
    CAN$258.77
    GENERAL ELECTRIC TEY330

    GENERAL ELECTRIC

    TEY330

    CIRCUIT BREAKER, 30 AMP, 3 POLE, 480 VAC / 277 VAC, Q-LINE, TYPE TEY, 3P, 3PH, 30A, 277/480V, 14KA@480V, STANDARD INTERRUPTING CAPACITY, 40C, BOLT-ON, THERMAL MAGNETIC MOLDED CASE CIRCUIT BR ...
    ✓ IN STOCK!
    CAN$805.01 Buy Surplus As Low As CAN$483.01
    CAN$483.01
    GENERAL ELECTRIC THED136030WL

    GENERAL ELECTRIC

    THED136030WL

    CIRCUIT BREAKER, 30 AMP, 3 POLE, 600 VAC, W/LUGS
    ✓ IN STOCK!
    CAN$846.26 Buy Surplus As Low As CAN$507.76
    CAN$507.76
    Repair Yours CAN$362.15
    EATON CORPORATION GD3035

    EATON CORPORATION

    CUTLER HAMMER

    GD3035

    MOLDED CASE CIRCUIT BREAKER, G FRAME, TYPE GD, 22 KAIC AT 480 VAC, 3 POLE, 35 AMP RATING
    ✓ IN STOCK!
    CAN$831.00 Buy Surplus As Low As CAN$499.00
    CAN$499.00
    Repair Yours CAN$416.00
    EATON CORPORATION GFCB220

    EATON CORPORATION

    CUTLER HAMMER

    GFCB220

    TYPE BR 5 MA GFI BREAKER 20A/2 POLE 120/240V 10K
    ✓ IN STOCK!
    CAN$312.00 Buy Surplus As Low As CAN$187.00
    CAN$187.00
    Repair Yours CAN$250.00
    EATON CORPORATION HMCP100R3

    EATON CORPORATION

    CUTLER HAMMER

    HMCP100R3

    CIRCUIT BREAKER, SERIES C, 100 AMP, 3 POLE, 600 VAC, 250 VDC
    ✓ IN STOCK!
    CAN$2,526.72 Buy Surplus As Low As CAN$541.77
    CAN$541.77
    Repair Yours CAN$383.94
    FUJI ELECTRIC BU-ECA-3030

    FUJI ELECTRIC

    BU-ECA-3030

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 30 AMP, 3 POLE, 240 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$38.32
    CAN$38.32
    FUJI ELECTRIC BU-ESB3030

    FUJI ELECTRIC

    BU-ESB3030

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 30 AMP, 3 POLE, 600 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$169.31
    CAN$169.31
    FUJI ELECTRIC EG203B-125

    FUJI ELECTRIC

    EG203B-125

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 125AMP, 3POLE, 100-200-415V, 15-30KA
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$347.21
    CAN$347.21
    Repair Yours CAN$358.64
    EATON CORPORATION BAB1020S

    EATON CORPORATION

    CUTLER HAMMER

    BAB1020S

    CIRCUIT BREAKER, THERMAL MAGNETIC, QUICKLAG, 20 AMP, 120/240V, 10 KAIC, SINGLE POLE, W/ SHUNT TRIP, - 120/208/240 VAC, - (2.6A-120VAC / 11A-24VDC)
    ✓ IN STOCK!
    CAN$193.74 Buy Surplus As Low As CAN$114.03
    CAN$114.03
    Repair Yours CAN$360.00
    EATON CORPORATION CH2125

    EATON CORPORATION

    CUTLER HAMMER

    CH2125

    (PRICE/EA) TYPE CH BREAKER 125A/2 POLE 120/240V 10K
    ✓ IN STOCK!
    CAN$343.01 Buy Surplus As Low As CAN$236.89
    CAN$236.89
    Repair Yours CAN$250.00
    EATON CORPORATION CHB115GF

    EATON CORPORATION

    CUTLER HAMMER

    CHB115GF

    CIRCUIT BREAKER, 15AMP, 1POLE, GROUND FAULT INTERRUPT
    ✓ IN STOCK!
    CAN$260.00 Buy Surplus As Low As CAN$198.00
    CAN$198.00
    Repair Yours CAN$250.00
    EATON CORPORATION EHD3015

    EATON CORPORATION

    CUTLER HAMMER

    EHD3015

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 480 VAC, 250 VDC, 3-POLE, 15 AMP, LOAD SIDE LUGS ONLY
    ✓ IN STOCK!
    CAN$864.74 Buy Surplus As Low As CAN$518.84
    CAN$518.84
    Repair Yours CAN$457.00
    FEDERAL PACIFIC ELECTRIC NEF431100

    FEDERAL PACIFIC ELECTRIC

    NEF431100

    CIRCUIT BREAKER, VOLTAGE RATING: 480VAC, CURRENT RATING: 100AMP, 3 POLE
    ✓ IN STOCK!
    CAN$1,201.73 Buy Surplus As Low As CAN$686.71
    CAN$686.71
    Repair Yours CAN$513.60
    FEDERAL PACIFIC ELECTRIC NJL631400

    FEDERAL PACIFIC ELECTRIC

    NJL631400

    DISCONTINUED BY MANUFACTURER, MOLDED CASE CIRCUIT BREAKER, 400AMP, 3POLE, 600VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$109.76
    CAN$109.76
    Repair Yours CAN$360.00
    GENERAL ELECTRIC V37310

    GENERAL ELECTRIC

    V37310

    CIRCUIT BREAKER VLINE 3POLE
    ✓ IN STOCK!
    CAN$273.21 Buy Surplus As Low As CAN$166.79
    CAN$166.79
    Repair Yours Contact Us
    SIEMENS 3RV1011-0EA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1011-0EA10

    CIRCUIT BREAKER, SIZE S00 FOR MOTOR PROTECTION, 3 POLE, 0.28-0.4 AMP A-RELEASE, 5.2 AMP N-RELEASE, CLASS 10, SCREW TYPE TERMINAL, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$169.00 Buy Surplus As Low As CAN$91.26
    CAN$91.26
    SIEMENS 3RV1011-1DA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1011-1DA10

    CIRCUIT BREAKER, 2.2-3.2 AMP, 690 VAC, 3 POLE, 1.1 KW S00 FOR MOTOR PROTECTION CLASS 10
    ✓ IN STOCK!
    CAN$425.69 Buy Surplus As Low As CAN$208.91
    CAN$208.91
    Repair Yours CAN$250.00
    SIEMENS 3RV1011-1GA10

    SIEMENS

    3RV1011-1GA10

    CIRCUIT BREAKER, FOR MOTOR PROTECTION, SIZE: S00, 3 POLE, 4.5-6.3 AMP, 690 VAC, 50/60 HZ, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -20 TO +60 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$187.00 Buy Surplus As Low As CAN$113.00
    CAN$113.00
    SIEMENS 3RV1021-1KA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1021-1KA10

    DISCONTINUED BY MANUFACTURER 10/01/2019, CIRCUIT BREAKER, MOTOR PROTECTOR, 9/12.5 AMP, 3 POLE, 400/690 VAC, 50/60 HZ, SIZE S0, SUCCESSOR IS SIRIUS 3RV2, PREFERRED SUCCESSOR TYPE IS 3RV2011-1 ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$178.54
    CAN$178.54
    Repair Yours CAN$360.00
    SIEMENS 3RV1021-4AA10

    SIEMENS

    3RV1021-4AA10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SIZE S0, MOTOR PROTECTION, CLASS 10, 11-16 AMP, SCREW TERMINALS, (SUCCESSOR 3RV2021-4AA10)
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$138.81
    CAN$138.81
    SIEMENS BQD320

    SIEMENS

    BQD320

    CIRCUIT BREAKER, TYPE BQD, 3 POLE, 3 PHASE, 20 AMP, 277/480V, 14KAIC @ 480V, BOLT-ON, THERMAL MAGNETIC, GREY
    ✓ IN STOCK!
    CAN$499.40 Buy Surplus As Low As CAN$306.08
    CAN$306.08
    SIEMENS ED43B050

    SIEMENS

    ITE SIEMENS

    ED43B050

    THERMAL MAGNETIC. 3 POLE. 480 VAC. 50 AMPERE AT 40 DEG C. INTERRUPTING RATING 65 KILOAMPERE AT 240 VAC 18 KILOAMPERE AT 480 VAC (UL). LUG LOAD TERMINAL TERMINAL. WIRE SIZE 10 TO 1/0 AWG (ALU ...
    ✓ IN STOCK!
    CAN$559.00 Buy Surplus As Low As CAN$336.00
    CAN$336.00
    Repair Yours CAN$279.00
    SIEMENS EH3B015

    SIEMENS

    ITE SIEMENS

    EH3B015

    DISCONTINUED BY MANUFACTURER, MOLDED CASE CIRCUIT BREAKER, EH SERIES, 15 AMP, 3 POLE, 480 VAC, 3 PHASE, BOLT-ON, COMPLETE WITH NON-INTERCHANGEABLE TRIP
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$242.39
    CAN$242.39
    Repair Yours CAN$360.00
    SIEMENS EH3-B030

    SIEMENS

    ITE SIEMENS

    EH3-B030

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 30AMP, 3POLE, 480VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$438.44
    CAN$438.44
    Repair Yours CAN$360.00
    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 CAN$435.09
    CAN$435.09
    Repair Yours CAN$360.00
    SIEMENS MBKQJ3

    SIEMENS

    ITE SIEMENS

    MBKQJ3

    CIRCUIT BREAKER MOUNTING KIT, QJ FRAME, 3 PHASE, 600 V, 225 A, ALUMINUM
    ✓ IN STOCK!
    CAN$203.01 Buy Surplus As Low As CAN$183.01
    CAN$183.01
    Repair Yours CAN$250.00
    SIEMENS MLKA3

    SIEMENS

    MLKA3

    LUG KIT, MAIN OR FEED-THRU, ALUMINUM, FOR ORIGINAL P1 INTERIOR PANELBOARD, SUITABLE FOR 3-PHASE SYSTEM RATED (250A), WIRE RANGE: NO.6 AWG - 350KCMIL (CU/AL), NOT SUITABLE FOR USE WITH REVISE ...
    ✓ IN STOCK!
    CAN$123.00 Buy Surplus As Low As CAN$94.00
    CAN$94.00
    SIEMENS CQD3100

    SIEMENS

    ITE SIEMENS

    CQD3100

    CIRCUIT BREAKER, CQD TYPE, 3 POLE, 100 AMP, 277 V AC, 50/60 HZ
    ✓ IN STOCK!
    CAN$783.00 Buy Surplus As Low As CAN$470.00
    CAN$470.00
    Repair Yours CAN$390.10
    SIEMENS CQD315

    SIEMENS

    ITE SIEMENS

    CQD315

    CIRCUIT BREAKER, CQD, 3P, 15A, 480/277V, 14KA DIN
    ✓ IN STOCK!
    CAN$581.00 Buy Surplus As Low As CAN$349.00
    CAN$349.00
    Repair Yours CAN$290.00
    SIEMENS CQD320

    SIEMENS

    ITE SIEMENS

    CQD320

    CIRCUIT BREAKER, CQD TYPE, 3 POLE, 20 AMP, 480Y/277V, 14KA
    ✓ IN STOCK!
    CAN$581.00 Buy Surplus As Low As CAN$349.00
    CAN$349.00
    Repair Yours CAN$290.00
    SIEMENS CQD350

    SIEMENS

    ITE SIEMENS

    CQD350

    CIRCUIT BREAKER, 50AMP, 3POLE, 480/277V, 14KA,
    ✓ IN STOCK!
    CAN$581.00 Buy Surplus As Low As CAN$349.00
    CAN$349.00
    Repair Yours CAN$290.00
    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!
    CAN$426.00 Buy Surplus As Low As CAN$256.00
    CAN$256.00
    Repair Yours CAN$250.00
    SIEMENS ED43B025L

    SIEMENS

    ED43B025L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 480 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 25 AMP , ED43B025L , ED43B025L
    ✓ IN STOCK!
    CAN$559.00 Buy New CAN$559.00
    CAN$569.99
    Repair Yours CAN$279.00
    SIEMENS 3RV1021-4CA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1021-4CA10

    DISCONTINUED BY MANUFACTURER 01/10/2019, CIRCUIT BREAKER, FOR MOTOR PROTECTION, 17-22 AMP SHORT-CIRCUIT RELEASE, CLASS 10, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, REPLACED BY 3RV2021-4C ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$305.81
    CAN$305.81
    Repair Yours CAN$360.00
    SIEMENS 3RV1021-4DA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1021-4DA10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, STARTER MOTOR PROTECTOR, SIZE S0, CLASS 10, 20-25 AMP, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, SUCCESSOR IS 3RV2021-4DA10
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$272.20
    CAN$272.20
    Repair Yours CAN$360.00
    SIEMENS 3RV1421-1GA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1421-1GA10

    DISCONTINUED BY MANUFACTURER 10/01/2019, CIRCUIT BREAKER, SIZE S0, FOR TRANSFORMER PROTECTION A-RELEASE, 4.5-6.3 AMP, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, 3RV1421-1GA10 IS REPLACED B ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$288.42
    CAN$288.42
    SIEMENS P2100

    SIEMENS

    ITE SIEMENS

    P2100

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 100AMP, 2 POLE, PUSHMATIC
    ✓ IN STOCK!
    CAN$432.63 Buy Surplus As Low As CAN$260.60
    CAN$260.60
    Repair Yours CAN$360.00
    SIEMENS P250

    SIEMENS

    ITE SIEMENS

    P250

    DISCONTINUED BY MANUFACTURER,CIRCUIT BREAKER, 50AMP, 2POLE, 240V, PUSHMATIC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$100.67
    CAN$100.67
    SIEMENS QE120

    SIEMENS

    ITE SIEMENS

    QE120

    QE120 CIRCUIT BREAKER, 20A, QE, CIRCUIT BREAKER, 240V, 20 AMP
    ✓ IN STOCK!
    CAN$186.00 Buy Surplus As Low As CAN$142.00
    CAN$142.00
    Repair Yours Contact Us
    SIEMENS ED63A100

    SIEMENS

    ITE SIEMENS

    ED63A100

    CIRCUIT BREAKER, SENTRON, TYPE ED, 3 POLE, 3 PHASE, 100 AMP, 600V, 25KA @ 480V, BOLT-ON, LUGS NOT INCLUDED, MOTOR PROTECTION, 315-1000A MAGNETIC , ED63A100 , ED63A100
    ✓ IN STOCK!
    CAN$1,022.02 Buy Surplus As Low As CAN$613.59
    CAN$613.59
    Repair Yours CAN$427.00
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