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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 902.
    GENERAL ELECTRIC TEML36050

    GENERAL ELECTRIC

    TEML36050

    CIRCUIT BREAKER, 3POLE, 50AMP, 600VAC, MAG-BREAK
    ✓ IN STOCK!
    CAN$2,258.20 Buy Surplus As Low As CAN$579.36
    CAN$579.36
    Repair Yours Contact Us
    SIEMENS 3RV2111-0AA10

    SIEMENS

    3RV2111-0AA10

    CIRCUIT BREAKER SIZE S00 FOR MOTOR PROTECTION, CLASS 10 WITH OVERLOAD RELAY FUNCTION A-RELEASE 0.11...0.16 A N-RELEASE 2.1 A SCREW TERMINAL STANDARD SWITCHING CAPACITY , 3RV21110AA10
    ✓ IN STOCK!
    CAN$268.00 Buy Surplus As Low As CAN$161.00
    CAN$161.00
    Repair Yours Contact Us
    SIEMENS 3RV2121-4CA10

    SIEMENS

    3RV2121-4CA10

    CIRCUIT BREAKER SIZE S0 FOR MOTOR PROTECTION, CLASS 10 WITH OVERLOAD RELAY FUNCTION A-RELEASE 16...22 A N-RELEASE 286 A SCREW TERMINAL STANDARD SWITCHING CAPACITY , 3RV21214CA10
    ✓ IN STOCK!
    CAN$346.00 Buy Surplus As Low As CAN$208.00
    CAN$208.00
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    SIEMENS 3RV2121-4DA10

    SIEMENS

    3RV2121-4DA10

    CIRCUIT BREAKER, SIZE S0, FOR MOTOR PROTECTION, CLASS 10, WITH OVERLOAD RELAY FUNCTION, A-RELEASE 18-25 AMP, N-RELEASE 325 AMP, SCREW TERMINAL, STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$381.00 Buy Surplus As Low As CAN$290.00
    CAN$290.00
    Repair Yours Contact Us
    SIEMENS 3RV23111AC10

    SIEMENS

    3RV23111AC10

    CIRCUIT BREAKER, SIZE S00, FOR STARTER COMBINATION, RATED CURRENT 1.6 A, N-RELEASE 21 A, SCREW TERMINAL, STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$174.00 Buy Surplus As Low As CAN$133.00
    CAN$133.00
    SIEMENS 3RV2311-1FC10

    SIEMENS

    3RV2311-1FC10

    CIRCUIT-BREAKER, SIZE S00, RATED CURRENT: 5 AMP, N RELEASE: 65 AMP, SCREW CONNECTION, STANDARD SWITCHING CAPACITY, REPLACES: 3RV1321-1FC10 , 3RV23111FC10 , 3RV23111FC10
    ✓ IN STOCK!
    CAN$178.00 Buy Surplus As Low As CAN$118.00
    CAN$118.00
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    SIEMENS 3RV23111GC10

    SIEMENS

    3RV23111GC10

    CIRCUIT BREAKER, SIZE S00, FOR STARTER, COMBINATION RATED CURRENT 6.3 A, N-RELEASE 82 A, SCREW TERMINAL, STANDARD SWITCHING CAPACITY
    ✓ IN STOCK!
    CAN$178.00 Buy Surplus As Low As CAN$107.00
    CAN$107.00
    SIEMENS 3RV2311-1JC20

    SIEMENS

    3RV2311-1JC20

    CIRCUIT-BREAKER S00 10A NO OVERLOAD, CIRCUIT-BREAKER SZ S00, FOR STARTER COMBINATION, RATED CURRENT 10A, N-RELEASE 130A, SPRING-L. CONNECTION, STANDARD SW. CAPACITY
    ✓ IN STOCK!
    CAN$196.00 Buy Surplus As Low As CAN$118.00
    CAN$118.00
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    SIEMENS 3RV2311-4AC20

    SIEMENS

    3RV2311-4AC20

    CIRCUIT-BREAKER S00 16A NO OVERLOAD, CIRCUIT-BREAKER SZ S00, FOR STARTER COMBINATION, RATED CURRENT 16A, N-RELEASE 208A, SPRING-L. CONNECTION, STANDARD SW. CAPACITY
    ✓ IN STOCK!
    CAN$196.00 Buy Surplus As Low As CAN$118.00
    CAN$118.00
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    SIEMENS 3RV2321-4AC10

    SIEMENS

    3RV2321-4AC10

    CIRCUIT BREAKER, FOR MOTOR PROTECTION, SIZE S0, 16 AMP, 690 VAC, 50/60 HZ, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -20 TO +60 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$206.00 Buy Surplus As Low As CAN$124.00
    CAN$124.00
    SIEMENS 3RV2321-4EC10

    SIEMENS

    3RV2321-4EC10

    CIRCUIT BREAKER, SIZE S0, FOR STARTER COMBINATION, 32 AMP RATED CURRENT, 400 AMP N-RELEASE, STANDARD SWITCHING CAPACITY, SCREW TERMINAL
    ✓ IN STOCK!
    CAN$316.00 Buy Surplus As Low As CAN$162.11
    CAN$162.11
    SIEMENS 3RV2321-4PC10

    SIEMENS

    3RV2321-4PC10

    CIRCUIT BREAKER, FOR STARTER COMBINATION, 36 AMP RATED CURRENT, 432 AMP N-RELEASE, SIZE S0, SCREW TERMINAL, STANDARD SWITCHING CAPACITY, DIN RAIL MOUNTING
    ✓ IN STOCK!
    CAN$374.00 Buy Surplus As Low As CAN$247.00
    CAN$247.00
    SIEMENS 3RV2411-1EA20

    SIEMENS

    3RV2411-1EA20

    CIRCUIT BREAKER, TRANSFORMER PROTECTION, 2.8-4 AMP, 690V, S00
    ✓ IN STOCK!
    CAN$194.00 Buy Surplus As Low As CAN$148.00
    CAN$148.00
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    SIEMENS B250BP

    SIEMENS

    B250BP

    CIRCUIT BREAKER, 2 POLE, 50 AMP, 10 KA @ 240 VAC, BL FRAME, PANEL MOUNTED, THERMAL MAGNETIC , B250BP
    ✓ IN STOCK!
    CAN$200.18 Buy Surplus As Low As CAN$96.33
    CAN$96.33
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    SIEMENS Q250Z

    SIEMENS

    ITE SIEMENS

    Q250Z

    BREAKER, 50AMP, 2P, 120/240V, 10K QP
    ✓ IN STOCK!
    CAN$90.56 Buy Surplus As Low As CAN$30.25
    CAN$30.25
    MITSUBISHI CP30-BA-1P-1M-20A

    MITSUBISHI

    CP30-BA-1P-1M-20A

    CIRCUIT PROTECTOR, SINGLE POLE, 20 AMP, M CURVE, 220 VAC, 230 VAC @ 2.5 KA, 60 VDC @ 2.5 KA, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$88.81 Buy Surplus As Low As CAN$24.87
    CAN$24.87
    GENERAL ELECTRIC TEL136030WL

    GENERAL ELECTRIC

    TEL136030WL

    CIRCUIT BREAKER, EL SERIES, TYPE TEL, 3P, 3PH, 30A, 600V, 65KA@480V, HIGH INTERRUPTING CAPACITY, FEED-THRU, COMPLETE WITH NON-INTERCHANGEABLE TRIP, LONG-TIME AND INSTANTANEOUS TRIP FUNCTIONS ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$592.82
    CAN$592.82
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    NVENT HB01069

    NVENT

    HOFFMAN ENCLOSURES

    HB01069

    FLEX TERM 55MMX28 30X10 TT TTT
    CAN$180.59 Buy Surplus As Low As CAN$122.36
    CAN$122.36
    CHALLENGER NEF435030

    CHALLENGER

    NEF435030

    CHALLENGER, NEF435030,CIRCUIT BREAKER 30AMP 3POLE 480VAC, TYPE NEF
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$128.50
    CAN$128.50
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    WESTINGHOUSE HFB1020

    WESTINGHOUSE

    HFB1020

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 20AMP, 1POLE, 277VAC, 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$57.49
    CAN$57.49
    ASEA BROWN BOVERI 1SDA013865R1

    ASEA BROWN BOVERI

    1SDA013865R1

    CONNECTOR, FOR SHUNT OR UNDERVOLTAGE RELEASE, SOR-UVR S3-S4-S5-S6 F
    ✓ IN STOCK!
    CAN$54.56 Buy Surplus As Low As CAN$29.71
    CAN$29.71
    ASEA BROWN BOVERI GHS2710001R0504

    ASEA BROWN BOVERI

    GHS2710001R0504

    CIRCUIT BREAKER, 50AMP, 1POLE, TYPE C, 10KA, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$91.48
    CAN$91.48
    ASEA BROWN BOVERI GHS2720001R0104

    ASEA BROWN BOVERI

    GHS2720001R0104

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, C-CURVE, 10AMP, 2POLE, 380VAC, IP20, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$153.92
    CAN$153.92
    ASEA BROWN BOVERI GHS2137551V0000

    ASEA BROWN BOVERI

    GHS2137551V0000

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 40AMP, 3POLE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$239.58
    CAN$239.58
    WESTINGHOUSE FB3025L

    WESTINGHOUSE

    FB3025L

    MOLDED CASE CIRCUIT BREAKER, THERMAL MAGNETIC TRIP, 25 AMP, 3 POLE, TYPE FB, 600 VAC MAX, WITH LUGS
    ✓ IN STOCK!
    CAN$875.56 Buy Surplus As Low As CAN$265.07
    CAN$265.07
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    RITTAL SV-3080.000-EACH

    RITTAL

    SV-3080.000-EACH

    END COVER FOR SV3000.000 EACH
    ✓ IN STOCK!
    CAN$2.50 Buy Surplus As Low As CAN$0.90
    CAN$0.90
    ASEA BROWN BOVERI S272-K20A

    ASEA BROWN BOVERI

    S272-K20A

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 20 AMP, 2 POLE, 277/480VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$58.81
    CAN$58.81
    ASEA BROWN BOVERI S261-B13

    ASEA BROWN BOVERI

    S261-B13

    CIRCUIT BREAKER 13AMP 1POLE 277V
    ✓ IN STOCK!
    CAN$50.97 Buy Surplus As Low As CAN$19.07
    CAN$19.07
    ASEA BROWN BOVERI S201-Z2

    ASEA BROWN BOVERI

    S201-Z2

    CIRCUIT BREAKER, MINIATURE, Z CURVE, 2 AMP, 1 POLE, 50/60 HZ, 230/400 VAC, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$112.78 Buy Surplus As Low As CAN$39.80
    CAN$39.80
    Repair Yours Contact Us
    EATON CORPORATION HKB3200T

    EATON CORPORATION

    CUTLER HAMMER

    HKB3200T

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER TRIP, THERMAL MAGNETIC, 200 AMP, 3 POLE, 600 V
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$152.46
    CAN$152.46
    WESTINGHOUSE HLB3350TV

    WESTINGHOUSE

    HLB3350TV

    DISCONTINUED BY MANUFACTURER,CIRCUIT BREAKER TRIP UNIT, 350AMP, 3POLE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$162.63
    CAN$162.63
    TE CONNECTIVITY W91-X112-25

    TE CONNECTIVITY

    POTTER & BRUMFIELD

    W91-X112-25

    CIRCUIT BREAKER, HYDROMAGNETIC, 1P, 277V, 25A; PRODUCT RANGE:W9 SERIES; CURRENT RATING:25A; NO. OF POLES:1 POLE; INPUT VOLTAGE VAC:277V; TRIP TIME:20S; INTERRUPTING CAPACITY:5KA; DIELECTRIC ...
    ✓ IN STOCK!
    CAN$207.64 Buy Surplus As Low As CAN$137.04
    CAN$137.04
    Repair Yours Contact Us
    TE CONNECTIVITY W91-X113-5

    TE CONNECTIVITY

    POTTER & BRUMFIELD

    W91-X113-5

    CIRCUIT BREAKER, HYDRAULIC MAGNETIC, 5AMP, 1POLE, 277VAC, 50/60HZ, CURVE 3, W9 SERIES, ROHS
    ✓ IN STOCK!
    CAN$68.25 Buy Surplus As Low As CAN$17.73
    CAN$17.73
    TE CONNECTIVITY W91-X152-20

    TE CONNECTIVITY

    POTTER & BRUMFIELD

    W91-X152-20

    CIRCUIT BREAKER, HYDROMAGNETIC, 1P, 65V, 20A; PRODUCT RANGE:W9 SERIES; CURRENT RATING:20A; NO. OF POLES:1 POLE; INPUT VOLTAGE VAC:-; TRIP TIME:20S; INTERRUPTING CAPACITY:2KA; DIELECTRIC STRE ...
    ✓ IN STOCK!
    CAN$95.83 Buy Surplus As Low As CAN$46.09
    CAN$46.09
    Repair Yours Contact Us
    TE CONNECTIVITY W93-X112-20

    TE CONNECTIVITY

    POTTER & BRUMFIELD

    W93-X112-20

    CIRCUIT BREAKER, HYDROMAGNETIC, 3P, 277V, 20A; PRODUCT RANGE:W9 SERIES; CURRENT RATING:20A; NO. OF POLES:3 POLE; INPUT VOLTAGE VAC:277V; TRIP TIME:20S; INTERRUPTING CAPACITY:5KA; DIELECTRIC ...
    ✓ IN STOCK!
    CAN$509.95 Buy Surplus As Low As CAN$229.17
    CAN$229.17
    TE CONNECTIVITY W58-XC1A8B-2

    TE CONNECTIVITY

    POTTER & BRUMFIELD

    W58-XC1A8B-2

    POTTER & BRUMFIELD , W58-XC1A8B-2, W58XC1A8B2, CIRCUIT BREAKER, 2AMP, 250VAC/50VDC, PUSH TO RESET
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$9.15
    CAN$9.15
    EATON CORPORATION EZT2036S

    EATON CORPORATION

    CUTLER HAMMER

    EZT2036S

    ENCLOSURE, EZ TRIM SURFACE, UNVENTED, 20 INCH WIDE X 36 INCH HIGH, KEYED
    ✓ IN STOCK!
    CAN$604.12 Buy Surplus As Low As CAN$129.06
    CAN$129.06
    Repair Yours Contact Us
    EATON CORPORATION WMZS1B63

    EATON CORPORATION

    CUTLER HAMMER

    WMZS1B63

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, MINATURE, 1 POLE, 63 AMP, B-CURVE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$49.76
    CAN$49.76
    CRABTREE 610/B10

    CRABTREE

    610/B10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, MINIATURE, 1 POLE, 10 AMP, B CURVE, SCREW TYPE TERMINAL, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$29.04
    CAN$29.04
    EATON CORPORATION EMBH110

    EATON CORPORATION

    CUTLER HAMMER

    EMBH110

    CIRCUIT BREAKER 10AMP 1POLE 15KA
    ✓ IN STOCK!
    CAN$37.75 Buy Surplus As Low As CAN$26.14
    CAN$26.14
    Repair Yours Contact Us
    TE CONNECTIVITY 374-202-101

    TE CONNECTIVITY

    POTTER & BRUMFIELD

    374-202-101

    CIRCUIT BREAKER PLUG IN 2AMP 250VAC
    ✓ IN STOCK!
    CAN$56.19 Buy Surplus As Low As CAN$23.35
    CAN$23.35
    Repair Yours Contact Us
    GENERAL ELECTRIC TFKM0MA1

    GENERAL ELECTRIC

    TFKM0MA1

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, OPERATING MECHANISM, MOD 2, INPUT, 120 VAC, 50 / 60 HZ, 5.5 AMP, OUTPUT, 125 VDC, 4.5 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$490.68
    CAN$490.68
    WYLEX HB15

    WYLEX

    HB15

    DISCONTINUED BY MANUFACTURER, MINIATURE CIRCUIT BREAKER, 15 AMP, 1 POLE, 240-415 VAC, TYPE 2
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$74.05
    CAN$74.05
    ASEA BROWN BOVERI ESB43100L

    ASEA BROWN BOVERI

    ESB43100L

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 3 POLE, 100AMP, 480VAC, LUGS
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$184.00
    CAN$184.00
    Repair Yours Contact Us
    WESTINGHOUSE E1015

    WESTINGHOUSE

    E1015

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER 15AMP 1POLE 120VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$68.11
    CAN$68.11
    Repair Yours Contact Us
    SIEMENS 5SN2-301

    SIEMENS

    ITE SIEMENS

    5SN2-301

    CIRCUIT BREAKER 1AMP 2POLE G-CURVE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$52.32
    CAN$52.32
    SENSATA TECHNOLOGIES 209-2-1REG4-66-4-9-100-H-V

    SENSATA TECHNOLOGIES

    AIRPAX

    209-2-1REG4-66-4-9-100-H-V

    CIRCUIT BREAKER MAGNETIC (HYDRAULIC DELAY), 100 AMP, 240 VOLT AC DC, LEVER DIN RAIL, 2 POLE
    ✓ IN STOCK!
    CAN$88.75 Buy Surplus As Low As CAN$47.03
    CAN$47.03
    SIEMENS 3VF3111-2BQ41-0AC1

    SIEMENS

    FURNAS ELECTRIC CO

    3VF3111-2BQ41-0AC1

    CIRCUIT BREAKER 63-80AMP 3POLE 600VAC/DC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$241.76
    CAN$241.76
    Repair Yours Contact Us
    SIEMENS 5SN2302

    SIEMENS

    ITE SIEMENS

    5SN2302

    CIRCUIT BREAKER 2AMP 2POLE 220/380 240/415 G-CURVE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$199.94
    CAN$199.94
    LOVATO LMR323200

    LOVATO

    LMR323200

    DISCONTINUED BY MANUFACTURER, MANUAL MOTOR PROTECTOR, CIRCUIT BREAKERS, 22-32A, 50KA, 400V
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$115.44
    CAN$115.44
    Repair Yours Contact Us
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