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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 801-850 of 840.
    GENERAL ELECTRIC THQB32020

    GENERAL ELECTRIC

    THQB32020

    CIRCUIT BREAKER, THQB, 10 KA, 20 AMP, 3 POLE, 240 V, RC
    ✓ IN STOCK!
    CAN$138.22 Buy Surplus As Low As CAN$80.65
    CAN$80.65
    Repair Yours Contact Us
    SIEMENS 3RV2021-1AA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV2021-1AA10

    CIRCUIT BREAKER, SIZE S0, FOR MOTOR PROTECTION, 3 POLE, 1.1 TO 1.6 AMP, 1.1 KW, 20-690 VAC, 50/60 HZ, CLASS 10, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -50 TO +80 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$175.00 Buy Surplus As Low As CAN$105.00
    CAN$105.00
    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
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    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 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 FD63T225

    SIEMENS

    ITE SIEMENS

    FD63T225

    TRIP FOR FD6 3P 600V 225A, SIEMENS LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER. THERMAL - MAGNETIC TRIP UNIT FOR FD FRAME 225A 3-POLE 600V BREAKERS.
    ✓ IN STOCK!
    CAN$944.00 Buy Surplus As Low As CAN$588.43
    CAN$588.43
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    SIEMENS ED43B100L

    SIEMENS

    SIEMENS INDUSTRY

    ED43B100L

    CIRCUIT BREAKER, SENTRON, TYPE ED, 3 POLE, 100 AMP, 480 VAC, 18 KAIC, FEED-THRU, LINE & LOAD SIDE LUGS, THERMAL MAGNETIC
    ✓ IN STOCK!
    CAN$654.00 Buy Surplus As Low As CAN$432.00
    CAN$432.00
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    SIEMENS A01MN64

    SIEMENS

    A01MN64

    AUXILIARY SWITCH, SENTRON SERIES, TYPE A01, 1 SWITCH, 480 VAC / 250 VDC
    ✓ IN STOCK!
    CAN$548.00 Buy Surplus As Low As CAN$329.00
    CAN$329.00
    SIEMENS Q380

    SIEMENS

    ITE SIEMENS

    Q380

    CIRCUIT BREAKER, TYPE QP, 10KA, 80AMP, 3POLE, 240VAC
    ✓ IN STOCK!
    CAN$288.00 Buy Surplus As Low As CAN$173.00
    CAN$173.00
    Repair Yours Contact Us
    SIEMENS BF130

    SIEMENS

    ITE SIEMENS

    BF130

    BF130 CIRCUIT BREAKER, 30A, BF, CIRCUIT BREAKER, 120V, 30 AMP
    ✓ IN STOCK!
    CAN$161.00 Buy Surplus As Low As CAN$97.00
    CAN$97.00
    Repair Yours Contact Us
    SIEMENS ED23B080

    SIEMENS

    ITE SIEMENS

    ED23B080

    CIRCUIT BREAKER, ENTRON SERIES, TYPE ED, 3-POLE, 3 PHASE, 80AMP, 240V, 10KA @ 240V, STANDARD INTERRUPTING CAPACITY, BOLT-ON, COMPLETE WITH LI - LONG-TIME AND INSTANTANEOUS TRIP FUNCTIONS, LO ...
    ✓ IN STOCK!
    CAN$502.00 Buy Surplus As Low As CAN$302.00
    CAN$302.00
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    SIEMENS BQ2B020

    SIEMENS

    BQ2B020

    CIRCUIT BREAKER, TYPE BQ, THERMAL MAGNETIC, 20 AMP, 2 POLE, 120/240 VAC, BOLT ON
    ✓ IN STOCK!
    CAN$79.28 Buy Surplus As Low As CAN$34.75
    CAN$34.75
    Repair Yours Contact Us
    SIEMENS 3RV2021-4BA10

    SIEMENS

    3RV2021-4BA10

    CIRCUIT BREAKER, SIZE S0, FOR MOTOR PROTECTION, CLASS 10 A-RELEASE, 13-20 AMP, N-RELEASE, 260 AMP, SCREW TERMINAL STANDARD SWITCHING CAPACITY, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$341.00 Buy Surplus As Low As CAN$205.00
    CAN$205.00
    SIEMENS 3RV2011-1JA20

    SIEMENS

    3RV2011-1JA20

    CIRCUIT BREAKER, 3RV2 SERIES, MOTOR PROTECTION, A-RELEASE 7 TO 10 AMP, N RELEASE 130 AMP, SPRING-TYPE TERMINAL, STANDARD SWITCHING CAPACITY, DIN RAIL MOUNTING, CLASS 10
    ✓ IN STOCK!
    CAN$406.00 Buy Surplus As Low As CAN$244.00
    CAN$244.00
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    SIEMENS 3RV2011-1HA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV2011-1HA10

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, 690 VAC, 5.5-8 AMP, 50/60 HZ, SCREW TERMINALS, CLASS 10, -20 TO +60 DEGREES C, IP20, REPLACES: 3RV1021-1HA10
    ✓ IN STOCK!
    CAN$285.00 Buy Surplus As Low As CAN$171.00
    CAN$171.00
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    SIEMENS BQ2B030

    SIEMENS

    ITE SIEMENS

    BQ2B030

    CIRCUIT BREAKER, 30 AMP, 2 POLE, 120/240 VAC, 10K, WITH LOAD SIDE LUGS, COMMON-TRIP
    ✓ IN STOCK!
    CAN$304.41 Buy Surplus As Low As CAN$86.53
    CAN$86.53
    SIEMENS 3RV1011-1CA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1011-1CA10

    CIRCUIT BREAKER, SIRIUS 3RV RANGE, FOR MOTOR PROTECTION, 1.8-2.5 AMP, 3 POLE, 690 VAC, 50/60 HZ, 100 KA, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -20 TO +60 DEGREES
    ✓ IN STOCK!
    CAN$187.00 Buy Surplus As Low As CAN$113.00
    CAN$113.00
    SIEMENS 3RV1011-1AA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1011-1AA10

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, 1.1-1.6 AMP A-RELEASE, 21 AMP N-RELEASE, 3 PHASE, 690 VAC, 0.55 KW, SCREW TERMINAL, CLASS 10
    ✓ IN STOCK!
    CAN$179.00 Buy Surplus As Low As CAN$108.00
    CAN$108.00
    SIEMENS B350H

    SIEMENS

    ITE SIEMENS

    B350H

    CIRCUIT BREAKER, 3POLE, 50AMP, 240VAC, 60HTZ, 3PHASE, B-FRAME TYPE
    ✓ IN STOCK!
    CAN$216.00 Buy Surplus As Low As CAN$129.99
    CAN$129.99
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    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
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    SIEMENS 3RV2011-0DA10

    SIEMENS

    3RV2011-0DA10

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, 0.22-0.32 AMP A-RELEASE, 4.2 AMP N-RELEASE, CLASS 10, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$157.00 Buy Surplus As Low As CAN$95.00
    CAN$95.00
    SIEMENS 3RV2011-1FA20

    SIEMENS

    3RV2011-1FA20

    CIRCUIT BREAKER, SIZE S00, FOR MOTOR PROTECTION, CLASS 10, 3.5-5 AMP A-RELEASE, 65 AMP N RELEASE, SPRING-TYPE TERMINAL, STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$271.90 Buy Surplus As Low As CAN$115.95
    CAN$115.95
    EATON CORPORATION 6LES300T

    EATON CORPORATION

    CUTLER HAMMER

    6LES300T

    (PRICE/EA) LES RATING PLUGS
    ✓ IN STOCK!
    CAN$251.01 Buy Surplus As Low As CAN$144.00
    CAN$144.00
    EATON CORPORATION 8NES800T

    EATON CORPORATION

    CUTLER HAMMER

    8NES800T

    CIRCUIT BREAKER RATING PLUGS, TYPE 8NES, 800A
    ✓ IN STOCK!
    CAN$416.79 Buy Surplus As Low As CAN$143.94
    CAN$143.94
    GENERAL ELECTRIC TED134035

    GENERAL ELECTRIC

    TED134035

    DISCONTINUED BY MANUFACTURER, BREAKER, 20 AMP, 3-POLE, 480 VOLT AC, 250 VOLT DC, 5 KAIC, MOLDED CASE, THERMAL MAGNETIC
    ✓ IN STOCK!
    CAN$699.20 Buy Surplus As Low As CAN$404.12
    CAN$404.12
    Repair Yours Contact Us
    SIEMENS 5SU1356-7KK06

    SIEMENS

    5SU1356-7KK06

    CIRCUIT BREAKER, RESIDUAL CURRENT, 6 AMP INPUT, 1 POLE + NEUTRAL, 230 VAC, C-CURVE, 30 MA, TYPE A, -25 TO 55 DEGREE C
    ✓ IN STOCK!
    CAN$372.00 Buy Surplus As Low As CAN$224.00
    CAN$224.00
    SIEMENS 3RV1431-4FA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1431-4FA10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SIZE S2, 28-40 AMP, SHORT CIRCUIT RELEASE
    ✓ IN STOCK!
    CAN$668.00 Buy Surplus As Low As CAN$401.00
    CAN$401.00
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    SIEMENS ED63B025

    SIEMENS

    ITE SIEMENS

    ED63B025

    THERMAL MAGNETIC. 3 POLE. 600 VAC 500 VDC. 25 AMPERE AT 40 DEG C. INTERRUPTING RATING 65 KILOAMPERE AT 240 VAC 25 KILOAMPERE AT 480 VAC 18 KILOAMPERE AT 600 VAC/500 VDC (UL)-21F-0116X
    ✓ IN STOCK!
    CAN$638.00 Buy Surplus As Low As CAN$383.00
    CAN$383.00
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    SIEMENS BQD340

    SIEMENS

    BQD340

    MOLDED CASE CIRCUIT BREAKER, BQD SERIES, 40 AMP, 3 POLE, BOLT ON, 480 VAC, 14 KAIC, FIXED THERMAL-MAGNETIC TRIP
    ✓ IN STOCK!
    CAN$483.00 Buy Surplus As Low As CAN$312.92
    CAN$312.92
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    SIEMENS B215H

    SIEMENS

    ITE SIEMENS

    B215H

    CIRCUIT BREAKER, LOW VOLTAGE, MOLDED CASE, 15 AMP, 2-POLE, 120/240 VAC, 60 HZ, BLH TYPE, BOLT-ON CONNECTION, UL 489
    ✓ IN STOCK!
    CAN$89.00 Buy Surplus As Low As CAN$53.82
    CAN$53.82
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    SIEMENS 5SY44168

    SIEMENS

    5SY44168

    MINIATURE CIRCUIT BREAKER, SENTRON, 4 POLE, 16 AMP, 440 VAC, 60 VDC, 50/60 HZ, D CURVE, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -40 TO +70 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$279.00 Buy Surplus As Low As CAN$143.13
    CAN$143.13
    Repair Yours Contact Us
    SIEMENS Q330

    SIEMENS

    ITE SIEMENS

    Q330

    MOLDED CASE CIRCUIT BREAKER, SERIES QP, 240 VAC, 30 AMP, 3 POLE, 10K-AMP INTERRUPT RATING, PLUG-IN CONNECTION
    ✓ IN STOCK!
    CAN$156.49 Buy Surplus As Low As CAN$93.89
    CAN$93.89
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    EATON CORPORATION ED2225

    EATON CORPORATION

    CUTLER HAMMER

    ED2225

    THERMAL-MAGNETIC CIRCUIT BREAKER, WITH NON-INTERCHANGEABLE TRIP UNIT, 240 VAC / 125 VDC MAX, TYPE ED, 65 KAIC AT 240 VAC, 2 POLE, 225 AMP RATING
    ✓ IN STOCK!
    CAN$657.98 Buy Surplus As Low As CAN$394.79
    CAN$394.79
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    SIEMENS CQD115

    SIEMENS

    ITE SIEMENS

    CQD115

    CIRCUIT BREAKER, 15AMP 1POLE 277VAC 14KA DIN RAIL
    ✓ IN STOCK!
    CAN$152.00 Buy Surplus As Low As CAN$92.00
    CAN$92.00
    Repair Yours Contact Us
    SIEMENS BQ1B025

    SIEMENS

    ITE SIEMENS

    BQ1B025

    CIRCUIT BREAKER, THERMAL/MAGNETIC, TYPE BQ, 25 AMP, 1 POLE, 120/240 VAC, 10000A IR, PANELBOARD MOUNTING TYPE
    ✓ IN STOCK!
    CAN$34.00 Buy Surplus As Low As CAN$21.00
    CAN$21.00
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    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
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    SCHNEIDER ELECTRIC MG24524

    SCHNEIDER ELECTRIC

    MERLIN GERIN

    MG24524

    DISCONTINUED BY MANUFACTURER, SUPPLEMENTARY PROTECTOR, 480Y/277 V, 16-AMP, 2-POLE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$137.57
    CAN$137.57
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    SIEMENS EH3B070

    SIEMENS

    ITE SIEMENS

    EH3B070

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 70 AMP, 3 POLE, 3 PHASE, 480 VAC, 18KA @ 240V, 14KA @ 480V
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,000.14
    CAN$1,000.14
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    EATON CORPORATION CH230EPD

    EATON CORPORATION

    CUTLER HAMMER

    CH230EPD

    CH GFCI CIRCUIT BREAKER, GROUND FAULT EQUIPMENT PROTECTOR, 30 A, 10 KAIC, TWO-POLE, 120240 V, CH, COMMON, 14-6 AWG CUAL, TYPE CH LOADCENTERS, GROUND FAULT CIRCUIT INTERRUPTER, GFI
    CAN$748.00 Buy Surplus As Low As CAN$449.00
    CAN$449.00
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