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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 751-800 of 840.
    SCHNEIDER ELECTRIC QOB2401021

    SCHNEIDER ELECTRIC

    SQUARE D

    QOB2401021

    MINIATURE CIRCUIT BREAKER, QO SERIES, 120/240 VAC, 40 A, BOLT-ON, 2 POLE, AC SHUNT TRIP
    ✓ IN STOCK!
    CAN$381.05 Buy Surplus As Low As CAN$182.90
    CAN$182.90
    Repair Yours Contact Us
    SCHNEIDER ELECTRIC QO2100

    SCHNEIDER ELECTRIC

    SQUARE D

    QO2100

    CIRCUIT BREAKER, MINIATURE, QO SERIES, 100 AMP, 2 POLE, 120/240 VAC, 10 KA, PLUG IN MOUNT
    ✓ IN STOCK!
    CAN$148.85 Buy Surplus As Low As CAN$88.75
    CAN$88.75
    WOHNER 32412

    WOHNER

    32412

    BUSBAR ADAPTER, 45 AMP, 2 ADJUSTABLE MOUTING RAILS, SYSTEM: 60 CLASSIC, FOR BUSBARS 12/15/20/25/30X 5/10 AND SECTION BUSBARS , 32412
    ✓ IN STOCK!
    CAN$202.00 Buy New CAN$202.00
    CAN$134.00
    EATON CORPORATION FAZ-C20/3-NA

    EATON CORPORATION

    FAZ-C20/3-NA

    EATON MINIATURE CIRCUIT BREAKER, CURRENT-LIMITING, 20A, 480Y/277 VAC/96 VDC, 3-POLE, C CURVE, THERMAL MAGNETIC, 14KA @ 480Y/277 VAC INTERRUPTING RATING, 35MM DIN RAIL MOUNT.
    ✓ IN STOCK!
    CAN$384.83 Buy Surplus As Low As CAN$98.95
    CAN$98.95
    SCHNEIDER ELECTRIC EDB34020

    SCHNEIDER ELECTRIC

    SQUARE D

    EDB34020

    CIRCUIT BREAKER, THERMAL MAGNETIC, MINIATURE, E-FRAME, 20 AMP, 480Y/277 VAC, 3 POLE, BOLT ON
    ✓ IN STOCK!
    CAN$652.28 Buy Surplus As Low As CAN$340.42
    CAN$340.42
    EATON CORPORATION BAB3020H

    EATON CORPORATION

    CUTLER HAMMER

    BAB3020H

    CIRCUIT BREAKER, TYPE BA, 20 AMP, 240V AC, 3 POLE, BOLT-ON MOUNTING
    ✓ IN STOCK!
    CAN$521.99 Buy Surplus As Low As CAN$208.80
    CAN$208.80
    Repair Yours Contact Us
    EATON CORPORATION GHB3020

    EATON CORPORATION

    CUTLER HAMMER

    GHB3020

    MOLDED CASE CIRCUIT BREAKER, G FRAME, TYPE GHB, 14 KAIC AT 480Y/277 VAC, 3 POLE, 20 AMP RATING
    ✓ IN STOCK!
    CAN$706.00 Buy Surplus As Low As CAN$424.00
    CAN$424.00
    Repair Yours Contact Us
    SIEMENS ED63S100A

    SIEMENS

    ITE SIEMENS

    ED63S100A

    CIRCUIT BREAKER, MOLDED CASE, W/ MAGNETIC ONLY TRIP UNIT, 100 AMP, 3 POLE, 600 V, 18 KA, ED FRAME, W/ STANDARD BREAKING CAPACITY
    ✓ IN STOCK!
    CAN$1,171.00 Buy Surplus As Low As CAN$562.40
    CAN$562.40
    Repair Yours Contact Us
    SIEMENS ED43B040

    SIEMENS

    ED43B040

    CIRCUIT BREAKER, FRAME TYPE ED, THERMAL MAGNETIC, INSTANTANEOUS TRIP, 18 KA, 40 AMP, 3 POLE, 480 VAC, SIDE LUG TERMINAL, BOLT-ON , ED43B040 , ED43B040
    ✓ IN STOCK!
    CAN$1,271.83 Buy Surplus As Low As CAN$425.87
    CAN$425.87
    Repair Yours Contact Us
    SIEMENS ED22B020

    SIEMENS

    ED22B020

    CIRCUIT BREAKER, SENTRON SERIES, TYPE ED2, 2 POLE, 20 AMP, 240 VAC, 10 KA, LD LUG , ED22B020
    ✓ IN STOCK!
    CAN$235.00 Buy Surplus As Low As CAN$141.00
    CAN$141.00
    EATON CORPORATION QBHW3030H

    EATON CORPORATION

    CUTLER HAMMER

    QBHW3030H

    MOLDED CASE CIRCUIT BREAKER, QUICKLAG SERIES, THERMAL MAGNETIC, 30 AMP, 240V AC, 3 POLE, BOLT-ON
    ✓ IN STOCK!
    CAN$446.99 Buy Surplus As Low As CAN$268.19
    CAN$268.19
    Repair Yours Contact Us
    SIEMENS HED43B020

    SIEMENS

    ITE SIEMENS

    HED43B020

    THERMAL MAGNETIC. 3 POLE. 480 VAC. 20 AMPERE AT 40 DEG C. INTERRUPTING RATING 100 KILOAMPERE AT 240 VAC 42 KILOAMPERE AT 480 VAC (UL). LUG LOAD TERMINAL TERMINAL. WIRE SIZE 12 TO 10 AWG (ALU ...
    ✓ IN STOCK!
    CAN$931.00 Buy Surplus As Low As CAN$559.00
    CAN$559.00
    Repair Yours Contact Us
    SIEMENS ED23B030L

    SIEMENS

    ITE SIEMENS

    ED23B030L

    BRKR ED2 3P 240V 30A LUG, ED STD INTER TM BRKR, MOLDED CASE CIRCUIT BREAKERS , ED23B030L , ED23B030L
    ✓ IN STOCK!
    CAN$320.00 Buy Surplus As Low As CAN$192.00
    CAN$192.00
    Repair Yours Contact Us
    EATON CORPORATION CHB120

    EATON CORPORATION

    CUTLER HAMMER

    CHB120

    EATON CH THERMAL MAGNETIC CIRCUIT BREAKER,GROUND FAULT CIRCUIT BREAKER,5 MA GROUND FAULT,20 A,10 KAIC,SINGLE\-POLE,120/240 V,\#14\-8 AWG,CHB,CH LOADCENTERS ## ATTRIBUTES |-----------|----- ...
    ✓ IN STOCK!
    CAN$39.93 Buy Surplus As Low As CAN$22.00
    CAN$22.00
    Repair Yours Contact Us
    EATON CORPORATION GHB3080

    EATON CORPORATION

    CUTLER HAMMER

    GHB3080

    MOLDED CASE CIRCUIT BREAKER, G FRAME, 14 KAIC AT 480Y/277 VAC, 3 POLE, 80 AMP RATING
    ✓ IN STOCK!
    CAN$914.00 Buy Surplus As Low As CAN$695.00
    CAN$695.00
    Repair Yours Contact Us
    SIEMENS FD63T200

    SIEMENS

    ITE SIEMENS

    FD63T200

    THERMAL MAGNETIC. FD FRAME. 3 POLE. 200 AMPERE. MAGNETIC TRIP ADJUSTMENT. SPEEDFAX[T BRAND. FD6 MODEL, SIEMENS LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER. THERMAL - MAGNETIC TRIP UNIT F ...
    ✓ IN STOCK!
    CAN$944.00 Buy Surplus As Low As CAN$519.59
    CAN$519.59
    Repair Yours Contact Us
    SIEMENS ED63B025L

    SIEMENS

    ITE SIEMENS

    ED63B025L

    BRKR ED6 3P 600V 25A LUG, ED STD INTER TM BRKR, MOLDED CASE CIRCUIT BREAKERS , ED63B025L , ED63B025L
    ✓ IN STOCK!
    CAN$638.00 Buy Surplus As Low As CAN$485.00
    CAN$485.00
    Repair Yours Contact Us
    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 Contact Us
    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!
    CAN$137.00 Buy Surplus As Low As CAN$83.00
    CAN$83.00
    Repair Yours Contact Us
    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 Contact Us
    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 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$88.91
    CAN$88.91
    Repair Yours Contact Us
    EATON CORPORATION A8NES800T1

    EATON CORPORATION

    CUTLER HAMMER

    A8NES800T1

    RATING PLUG FOR 800/600/500/400A ADJ ND
    ✓ IN STOCK!
    CAN$322.00 Buy Surplus As Low As CAN$194.00
    CAN$194.00
    EATON CORPORATION 2LCL150

    EATON CORPORATION

    CUTLER HAMMER

    2LCL150

    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY RATING PLUG
    ✓ IN STOCK!
    CAN$281.00 Buy Surplus As Low As CAN$169.00
    CAN$169.00
    EATON CORPORATION 8MC600

    EATON CORPORATION

    CUTLER HAMMER

    8MC600

    (PRICE/EA), RATING PLUG, TYPE MC, FIXED, 600A, 8MC600
    ✓ IN STOCK!
    CAN$250.00 Buy Surplus As Low As CAN$150.00
    CAN$150.00
    SIEMENS CQD370

    SIEMENS

    CQD370

    CIRCUIT BREAKER, CQD SERIES, TYPE CQD, THERMAL MAGNETIC, STANDARD INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 70 AMP, 277/480 VAC , CQD370 , CQD370
    ✓ IN STOCK!
    CAN$783.00 Buy Surplus As Low As CAN$470.00
    CAN$470.00
    Repair Yours Contact Us
    SIEMENS Q370

    SIEMENS

    Q370

    MOLDED CASE CIRCUIT BREAKER, STANDARD INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 240 VAC, 70 AMP, PLUG-IN CONNECTION TYPE, LI- LONG-TIME & INSTANTANEOUS TRIP FUNCTIONS , Q370 , Q370
    ✓ IN STOCK!
    CAN$283.23 Buy Surplus As Low As CAN$169.94
    CAN$169.94
    Repair Yours Contact Us
    SIEMENS Q360H

    SIEMENS

    Q360H

    Q360H CIRCUIT BREAKER, 60A, Q, CIRCUIT BREAKER, 240V, 60 AMP
    ✓ IN STOCK!
    CAN$355.00 Buy Surplus As Low As CAN$213.00
    CAN$213.00
    Repair Yours Contact Us
    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 Contact Us
    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$110.80
    CAN$110.80
    Repair Yours Contact Us
    SIEMENS CQD220

    SIEMENS

    CQD220

    BREAKER CQD 2P 20A 480/277V 14KA DIN, CIRCUIT BREAKER BQ & HB , CQD220 , CQD220
    ✓ IN STOCK!
    CAN$326.00 Buy Surplus As Low As CAN$248.00
    CAN$248.00
    Repair Yours Contact Us
    SIEMENS CQD215

    SIEMENS

    ITE SIEMENS

    CQD215

    CIRCUIT BREAKER, 15AMP, 2 POLE, 480/277V, 14KA, DIN
    ✓ IN STOCK!
    CAN$326.00 Buy Surplus As Low As CAN$196.00
    CAN$196.00
    Repair Yours Contact Us
    SIEMENS 3RV2711-1CD10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV2711-1CD10

    CIRCUIT BREAKER, SIZE S00, FOR SYSTEM PROTECTION WITH APPROVAL CIRCUIT BREAKER UL 489, CSA C22.2, 2.5 A N-RELEASE 33 A SCREW TERMINAL STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$372.00 Buy Surplus As Low As CAN$224.00
    CAN$224.00
    Repair Yours Contact Us
    SIEMENS 3RV2011-1BA15

    SIEMENS

    3RV2011-1BA15

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, 26 AMP, 690 VAC, 1 NO/NC, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -50 TO +80 DEGREE C, IP20, SUCCESSOR TO 3RV1021-1BA15
    ✓ IN STOCK!
    CAN$215.00 Buy Surplus As Low As CAN$129.00
    CAN$129.00
    SIEMENS 3RV2021-4DA10

    SIEMENS

    3RV2021-4DA10

    CIRCUIT BREAKER, FOR MOTOR PROTECTION, CLASS 10, 18-25 AMP A-RELEASE, 325 AMP N-RELEASE, SIZE S0, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, SUCCESSOR FOR 3RV1021-4DA10
    ✓ IN STOCK!
    CAN$266.02 Buy Surplus As Low As CAN$159.80
    CAN$159.80
    SIEMENS 3RV2021-1HA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV2021-1HA10

    CIRCUIT BREAKER, 5.5 - 8 AMP, 50HZ, SIZE S0, FOR MOTOR PROTECTION, CLASS 10 AMP RELEASE, 104 A SCREW TERMINAL, STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$182.00 Buy Surplus As Low As CAN$110.00
    CAN$110.00
    Repair Yours Contact Us
    SIEMENS 3RV2711-1GD10

    SIEMENS

    3RV2711-1GD10

    CIRCUIT BREAKER, THERMAL MAGNETIC, 6.3 AMP, 3 POLE, 600/347V, 50/60HZ, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$372.00 Buy Surplus As Low As CAN$178.74
    CAN$178.74
    Repair Yours Contact Us
    SIEMENS 3RV2011-1CA10

    SIEMENS

    3RV2011-1CA10

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, 3 POLE, 1.8-2.5 AMP, 690 VAC, 50/60 HZ, 100 KA, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -20 TO +60 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$231.00 Buy Surplus As Low As CAN$139.00
    CAN$139.00
    SIEMENS 3RV2011-1AA15

    SIEMENS

    3RV2011-1AA15

    CIRCUIT BREAKER MOTOR PROTECTOR 3RV2 SERIES SIZE S00 SCREW TERMINAL DESIGN 3 PHASE 50/60 HZ 690 VAC DIN RAIL MOUNT, SWITCH_MOTOR -3RV2011-1AA15
    ✓ IN STOCK!
    CAN$207.00 Buy Surplus As Low As CAN$125.00
    CAN$125.00
    SIEMENS 3RV2011-0GA20

    SIEMENS

    3RV2011-0GA20

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, CLASS 10, A-RELEASE 0.45-0.63 AMP, N-RELEASE 8.2 AMP, SPRING-TYPE TERMINAL, STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$159.00 Buy Surplus As Low As CAN$81.57
    CAN$81.57
    SIEMENS 3RV2011-1AA10

    SIEMENS

    3RV2011-1AA10

    CIRCUIT BREAKER, 1.1-1.6 AMP, 3 POLE, 240 VAC, SUCCESSOR TO: 3RV1021-1AA10
    ✓ IN STOCK!
    CAN$252.00 Buy Surplus As Low As CAN$152.00
    CAN$152.00
    SIEMENS 3RV2011-0JA20

    SIEMENS

    3RV2011-0JA20

    CIRCUIT BREAKER, FOR MOTOR PROTECTION, CLASS 10 A-RELEASE, 0.7 TO 1 A N-RELEASE, 13 A, SPRING-TYPE TERMINAL, STANDARD SWITCHING CAPACITY, SIZE S00, REPLACES 3RV1011-0JA20
    ✓ IN STOCK!
    CAN$169.00 Buy Surplus As Low As CAN$112.00
    CAN$112.00
    Repair Yours Contact Us
    SIEMENS 3RV2021-4DA15

    SIEMENS

    3RV2021-4DA15

    CIRCUIT BREAKER, SIZE SO, CLASS 10, A-RELEASE - 18-25 AMP, N-RELEASE - 325 AMP, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, TRANSVERSE AUX SWITCHES/1 NO & 1 NC, 6 KV SURGE VOLTAGE, REPLACES ...
    ✓ IN STOCK!
    CAN$300.00 Buy Surplus As Low As CAN$180.00
    CAN$180.00
    Repair Yours Contact Us
    SIEMENS 3RV2021-4CA10

    SIEMENS

    3RV2021-4CA10

    CIRCUIT BREAKER, FOR MOTOR PROTECTION, A-RELEASE, 16-22 AMP, N-RELEASE, SIZE S0, CLASS 10, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, SUCCESSOR FOR 3RV1021-4CA10
    ✓ IN STOCK!
    CAN$226.00 Buy Surplus As Low As CAN$136.00
    CAN$136.00
    Repair Yours Contact Us
    SIEMENS 3RV2011-1JA10

    SIEMENS

    3RV2011-1JA10

    CIRCUIT BREAKER, MOTOR STARTER/PROTECTION, SIZE S00, 3 POLE, 7-10 AMP, 690 VAC, 50/60 HZ, SCREW TYPE TERMINAL, DIN RAIL MOUNT, IP20
    ✓ IN STOCK!
    CAN$315.00 Buy Surplus As Low As CAN$189.00
    CAN$189.00
    SIEMENS 3RV1011-1JA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1011-1JA10

    CIRCUIT BREAKER, FOR MOTOR PROTECTION, 3 POLE, 7-10 AMP A-RELEASE, 130 AMP N RELEASE, 690 VAC, SIZE S00, CLASS 10, STANDARD SWITCHING CAPACITY, SCREW TERMINAL, DIN RAIL MOUNTING
    ✓ IN STOCK!
    CAN$482.66 Buy Surplus As Low As CAN$177.66
    CAN$177.66
    SIEMENS 3RV1011-0KA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1011-0KA10

    CIRCUIT BREAKER, SIZE S00, 0 FOR MOTOR PROTECTION, CLASS 10, 3 POLE, 0.9-1.25 AMP, 690 VAC, 50/60 HZ, SCREW TYPE TERMINAL, DIN RAIL MOUNT, IP20
    ✓ IN STOCK!
    CAN$179.00 Buy Surplus As Low As CAN$107.95
    CAN$107.95
    Repair Yours Contact Us
    GENERAL ELECTRIC TED134060

    GENERAL ELECTRIC

    TED134060

    CIRCUIT BREAKER, THERMAL MAGNETIC, 60AMP, 3POLE, 480VAC, BOLT-ON
    ✓ IN STOCK!
    CAN$963.62 Buy Surplus As Low As CAN$524.29
    CAN$524.29
    Repair Yours Contact Us
    SIEMENS QR22B200

    SIEMENS

    QR22B200

    MOLDED CASE CIRCUIT BREAKER, 2P, 200A, 240V, 10KA , QR22B200 , QR22B200
    ✓ IN STOCK!
    CAN$676.39 Buy Surplus As Low As CAN$357.14
    CAN$357.14
    Repair Yours Contact Us
    SIEMENS TA3K500

    SIEMENS

    ITE SIEMENS

    TA3K500

    LUG TERMINAL KIT, SINGLE LUG, LOW VOLTAGE, SENTRON MOLDED CASE CIRCUIT BREAKER ACCESSORY, ALUMINUM BODY LUG FOR 2/3-POLE 500A - 1200A LMD / MD / ND FRAME BREAKER, WIRE RANGE 1/0AWG - 500KCMI ...
    ✓ IN STOCK!
    CAN$199.00 Buy Surplus As Low As CAN$132.00
    CAN$132.00
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