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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 201-250 of 449.
    SIEMENS BQ3B045H

    SIEMENS

    BQ3B045H

    BQ3B045H CIRCUIT BREAKER, 45A, BQ, CIRCUIT BREAKER, 240V, 45 AMP
    $206.85 Buy Surplus As Low As $124.11
    $124.11
    Repair Yours $200.00
    SIEMENS ED43B110L

    SIEMENS

    SIEMENS INDUSTRY

    ED43B110L

    CIRCUIT BREAKER, SENTRON SERIES, TYPE ED, 3 POLE, 3 PHASE, 110 AMP, 480V, 18KAIC, STANDARD INTERRUPT, FEED-THRU, LINE & LOAD SIDE LUGS, THERMAL MAGNETIC
    $5,106.00 Buy New $5,106.00
    $590.00
    Repair Yours $490.00
    SIEMENS ED61B020

    SIEMENS

    ITE SIEMENS

    ED61B020

    MOLDED CASE CIRCUIT BREAKER, TYPE ED6, THERMAL MAGNETIC, 1 POLE, 600 VAC, 20 AMP
    ✓ IN STOCK!
    $1,163.00 Buy Surplus As Low As $80.00
    $80.00
    Repair Yours $200.00
    SIEMENS ED6-2B015

    SIEMENS

    ITE SIEMENS

    ED6-2B015

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER W/ LUGS, 2 POLE, 15 AMP, 600 V, 18 KA
    ✓ IN STOCK!
    Buy Surplus As Low As $103.00
    $103.00
    SIEMENS ED62B030

    SIEMENS

    ED62B030

    CIRCUIT BREAKER, SENTRON SERIES, TYPE ED, THERMAL MAGNETIC, STANDARD INTERRUPTING CAPACITY, 2 POLE, 1 PHASE, 30 AMP, 600 VAC
    ✓ IN STOCK!
    $2,028.00 Buy Surplus As Low As $1,217.00
    $1,217.00
    Repair Yours $1,011.00
    SIEMENS ED62B030L

    SIEMENS

    ED62B030L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 30 AMP
    $556.50 Buy Surplus As Low As $333.90
    $333.90
    Repair Yours $277.14
    SIEMENS ED62B035L

    SIEMENS

    ED62B035L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 35 AMP
    $556.50 Buy Surplus As Low As $333.90
    $333.90
    Repair Yours $277.14
    SIEMENS ED62B050

    SIEMENS

    ITE SIEMENS

    ED62B050

    CIRCUIT BREAKER, 600V, 50 AMP, TYPE ED
    $472.00 Buy Surplus As Low As $284.00
    $284.00
    Repair Yours $250.00
    SIEMENS ED62B060L

    SIEMENS

    ITE SIEMENS

    ED62B060L

    CIRCUIT BREAKER 60AMP 2POLE 600V 18KA LUGS
    $731.00 Buy Surplus As Low As $439.00
    $439.00
    Repair Yours $365.00
    SIEMENS ED62B090

    SIEMENS

    ED62B090

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAGNETIC, STANDARD RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 90 AMP
    $746.00 Buy Surplus As Low As $390.00
    $390.00
    Repair Yours $324.00
    SIEMENS ED62B100

    SIEMENS

    ED62B100

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 100 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $280.30
    $280.30
    Repair Yours $543.00
    SIEMENS BQ1B025H

    SIEMENS

    BQ1B025H

    BQ1B025H CIRCUIT BREAKER, 25A, BQ, CIRCUIT BREAKER, 120V, 25 AMP
    $71.40 Buy Surplus As Low As $42.84
    $42.84
    Repair Yours $200.00
    SIEMENS BQ1B035

    SIEMENS

    BQ1B035

    CIRCUIT BREAKER, BQ SERIES, TYPE BQ, THERMAL MAGNETIC, STANDARD INTERRUPTING CAPACITY, 1 POLE, 1 PHASE, 35 AMP, 120 VAC
    ✓ IN STOCK!
    $21.00 Buy Surplus As Low As $17.85
    $17.85
    Repair Yours $200.00
    SIEMENS BQ1B040H

    SIEMENS

    BQ1B040H

    BQ1B040H CIRCUIT BREAKER, 40A, BQ, CIRCUIT BREAKER, 120V, 40 AMP
    ✓ IN STOCK!
    $71.40 Buy Surplus As Low As $42.84
    $42.84
    Repair Yours $200.00
    SIEMENS BQ1B060H

    SIEMENS

    BQ1B060H

    BQ1B060H CIRCUIT BREAKER, 60A, BQ, CIRCUIT BREAKER, 120V, 60 AMP
    $71.40 Buy Surplus As Low As $42.84
    $42.84
    Repair Yours $200.00
    SIEMENS BQ2B015QX

    SIEMENS

    BQ2B015QX

    SIEMENS, BQ2B015QX, BREAKER 15A 2P 120/240V 10K BQ QCK-CON
    ✓ IN STOCK!
    $165.00 Buy Surplus As Low As $99.00
    $99.00
    Repair Yours $200.00
    SIEMENS BQ2B020H

    SIEMENS

    BQ2B020H

    BQ2B020H CIRCUIT BREAKER, 20A, BQ, CIRCUIT BREAKER, 240V, 20 AMP
    ✓ IN STOCK!
    $86.10 Buy Surplus As Low As $51.66
    $51.66
    Repair Yours $200.00
    SIEMENS BQ2B020HC

    SIEMENS

    BQ2B020HC

    BREAKERR BQH 2P 120/240V 20A 22K R TOUNGE, CIRCUIT BREAKER BQ & HB
    ✓ IN STOCK!
    $174.00 Buy Surplus As Low As $115.00
    $115.00
    Repair Yours $200.00
    SIEMENS BQ2B045

    SIEMENS

    BQ2B045

    CIRCUIT BREAKER, TYPE BQ, 2 POLE, 1 PHASE, 45 AMP, 240V, 10 KAIC, STANDARD INTERRUPT, BOLT-ON, LOAD SIDE LUGS, THERMAL MAGNETIC
    ✓ IN STOCK!
    $49.35 Buy Surplus As Low As $29.61
    $29.61
    Repair Yours $200.00
    SIEMENS CFD63B125

    SIEMENS

    CFD63B125

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE FD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 125 AMP
    ✓ IN STOCK!
    $2,541.00 Buy Surplus As Low As $1,268.25
    $1,268.25
    Repair Yours $809.42
    SIEMENS CFD63B225

    SIEMENS

    CFD63B225

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE FD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 225 AMP
    ✓ IN STOCK!
    $24,552.00 Buy Surplus As Low As $18,660.00
    $18,660.00
    Repair Yours $12,228.00
    SIEMENS CJD63B225

    SIEMENS

    CJD63B225

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE JD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 225 AMP
    $22,601.00 Buy Surplus As Low As $13,561.00
    $13,561.00
    Repair Yours $11,256.00
    SIEMENS CJD63S400A

    SIEMENS

    ITE SIEMENS

    CJD63S400A

    CIRCUIT BREAKER, SENTRON, TYPE CJD, 3 POLE, 3 PHASE, 400 AMP, 600V, 150KAIC @ 480V, BOLT-ON, NON-AUTOMATIC SWITCH
    ✓ IN STOCK!
    $19,913.00 Buy Surplus As Low As $11,948.00
    $11,948.00
    Repair Yours $9,917.00
    SIEMENS CLD63B500

    SIEMENS

    CLD63B500

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE LD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 500 AMP
    $36,094.00 Buy Surplus As Low As $21,657.00
    $21,657.00
    Repair Yours $17,976.00
    SIEMENS CLD63B600

    SIEMENS

    ITE SIEMENS

    CLD63B600

    CIRCUIT BREAKER, 600AMP, 3POLE, 600V, ADJUSTABLE INSTANTANEOUS MAGNETIC TRIP
    $36,581.28 Buy Surplus As Low As $5,000.00
    $5,000.00
    Repair Yours $4,150.00
    SIEMENS CND63B800H

    SIEMENS

    CND63B800H

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE ND, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 800 AMP , 100 PERCENT RATED
    $81,174.00 Buy Surplus As Low As $48,705.00
    $48,705.00
    Repair Yours $40,426.00
    ALLEN BRADLEY 1492-GH002

    ALLEN BRADLEY

    1492-GH002

    MINIATURE CIRCUIT BREAKER, 0.2 AMP RATING, 250VAC, 65VDC, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $37.00
    $37.00
    ALLEN BRADLEY 1492-GS1G100

    ALLEN BRADLEY

    1492-GS1G100

    MINIATURE CIRCUIT BREAKER, 10AMP, 1 POLE, 277VAC, 65VDC, DIN RAIL MOUNT, HIGH DENSITY MINI CIRCUIT BREAKERS (TOGGLE STYLE), G TRIP CHARACTERISTICS INDUCTIVE LOADS (AC)
    ✓ IN STOCK!
    Buy Surplus As Low As $78.00
    $78.00
    ALLEN BRADLEY 1492-CB2H060

    ALLEN BRADLEY

    1492-CB2H060

    DISCONTINUED BY MANUFACTURER 11/30/2007, CIRCUIT BREAKER, 6 AMP, 2 POLE, OPEN STYLE, DIN RAIL MOUNTABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $90.00
    $90.00
    ALLEN BRADLEY 1492-CB1G150

    ALLEN BRADLEY

    1492-CB1G150

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 15AMP, 1POLE, 277VAC, 65VDC, DIN-RAIL
    ✓ IN STOCK!
    Buy Surplus As Low As $9.08
    $9.08
    ALLEN BRADLEY 1492-CB1H010

    ALLEN BRADLEY

    1492-CB1H010

    DISCONTINUED BY MANUFACTURER 2007-11-30, CIRCUIT BREAKER, 1AMP, 1POLE, 277VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $38.50 $33.00
    $38.50 $33.00
    ALLEN BRADLEY 1492-CB-1-H-020

    ALLEN BRADLEY

    1492-CB-1-H-020

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 2 AMP, 277 VAC,1 PHASE,1 POLE, 1/6 HP
    ✓ IN STOCK!
    Buy Surplus As Low As $9.60
    $9.60
    ALLEN BRADLEY 1492-SP2C250

    ALLEN BRADLEY

    1492-SP2C250

    DISCONTINUED BY MANUFACTURER 2014-04-29 REPLACEMENT CATEGORY FUNCTIONAL REPLACEMENT REPLACEMENT PRODUCT, MINIATURE CIRCUIT BREAKER, SUPPLEMENTARY PROTECTOR, 2 POLE, 25 A, C CURVE, 480Y/277 V ...
    ✓ IN STOCK!
    Buy Surplus As Low As $49.50
    $49.50
    ALLEN BRADLEY 1492-SP2D060

    ALLEN BRADLEY

    1492-SP2D060

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 6AMP, 2 POLE, 415VAC, D-CURVE
    ✓ IN STOCK!
    Buy Surplus As Low As $100.00
    $100.00
    ALLEN BRADLEY 1492-IFM20F-F120A-2

    ALLEN BRADLEY

    1492-IFM20F-F120A-2

    20-POINT FUSIBLE DIGITAL IFM, 5 X 20MM FUSE CLIPS, 120V AC/DC BLOWN FUSE INDICATORS, EXTRA TERMINALS FOR INPUTS ,DIGITAL INTERFACEMODULE
    ✓ IN STOCK!
    Buy Surplus As Low As $190.00
    $190.00
    ASEA BROWN BOVERI S273-K16A

    ASEA BROWN BOVERI

    S273-K16A

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 16 AMP, 3 POLE, 277/480 VAC, DIN-RAIL
    ✓ IN STOCK!
    Buy Surplus As Low As $76.75 $37.50
    $76.75 $37.50
    BRADY 65406

    BRADY

    65406

    (PRICE/PACK OF 6 EACH)LOCKOUT CLEAT 480/600 VOLT GENERAL USE
    ✓ IN STOCK!
    $18.00 Buy Surplus As Low As $10.20
    $10.20
    EATON CORPORATION EHD2015

    EATON CORPORATION

    CUTLER HAMMER

    EHD2015

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 480 VAC, 250 VDC, 2-POLE, 15 AMP, LOAD SIDE LUGS ONLY
    ✓ IN STOCK!
    $623.00 Buy Surplus As Low As $374.00
    $374.00
    Repair Yours $311.00
    EATON CORPORATION EHD3020L

    EATON CORPORATION

    CUTLER HAMMER

    EHD3020L

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 480 VAC, 250 VDC, 3-POLE, 20 AMP, LINE AND LOAD TERMINALS
    ✓ IN STOCK!
    $987.00 Buy Surplus As Low As $155.33
    $155.33
    Repair Yours $200.00
    EATON CORPORATION FD3150L

    EATON CORPORATION

    CUTLER HAMMER

    FD3150L

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 600 VAC, 250 VDC, 3-POLE, 150 AMP, LINE AND LOAD TERMINALS
    ✓ IN STOCK!
    $1,716.75 Buy Surplus As Low As $1,030.05
    $1,030.05
    Repair Yours $874.24
    EATON CORPORATION CH8DF

    EATON CORPORATION

    CUTLER HAMMER

    CH8DF

    LOAD CENTER COVER; SURFACE/FLUSH MOUNT, NEMA 1 INDOOR, FOR SIZE D LOAD CENTERS
    ✓ IN STOCK!
    $234.00 Buy Surplus As Low As $151.30
    $151.30
    Repair Yours $200.00
    EATON CORPORATION E22B20

    EATON CORPORATION

    CUTLER HAMMER

    E22B20

    DISCONTINUED BY MANUFACTURER, CONTACT BLOCK, 2 POLE, 2 NO, 600 V MAX, 10 A, FOR USE W/ PUSHBUTTONS & INDICATING LIGHTS
    ✓ IN STOCK!
    $80.00 Buy Surplus As Low As $38.00
    $38.00
    EATON CORPORATION JDC3200

    EATON CORPORATION

    CUTLER HAMMER

    JDC3200

    CIRCUIT BREAKER, MOLDED CASE, J-FRAME, 200 AMP, 3 POLE, 600 VAC, 250 VDC, 50/60 HZ
    ✓ IN STOCK!
    $10,860.00 Buy Surplus As Low As $3,801.00
    $3,801.00
    Repair Yours $2,990.00
    EATON CORPORATION MDL3700

    EATON CORPORATION

    CUTLER HAMMER

    MDL3700

    EATON TYPE MDL 3 POLE 700 AMP CIRCUIT BREAKER WITH TERMINALS
    $6,720.00 Buy Surplus As Low As $4,032.00
    $4,032.00
    Repair Yours $3,346.56
    SIEMENS CQDST12

    SIEMENS

    CQDST12

    BREAKER CQD 12VDC SHUNT TRP, CIRCUIT BREAKER PANELB & SWB ACCESSORY
    $651.00 Buy Surplus As Low As $390.60
    $390.60
    Repair Yours $324.20
    SIEMENS CQDST480

    SIEMENS

    CQDST480

    BREAKER CQD 480VAC SHUNT TRP, CIRCUIT BREAKER PANELB & SWB ACCESSORY
    $1,341.00 Buy Surplus As Low As $805.00
    $805.00
    Repair Yours $669.00
    SIEMENS CRHOH

    SIEMENS

    SIEMENS INDUSTRY

    CRHOH

    ROTARY HANDLE, FOR CIRCUIT BREAKER, BRKR ED/FD/JD/LD/LMD, HANDLE ONLY
    ✓ IN STOCK!
    $26.00 Buy New $26.00
    $18.00
    SIEMENS ED42B050L

    SIEMENS

    ED42B050L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 480 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 50 AMP
    ✓ IN STOCK!
    $436.00 Buy Surplus As Low As $288.00
    $288.00
    Repair Yours $218.00
    SIEMENS FD63B175

    SIEMENS

    FD63B175

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE FD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 175 AMP
    $7,568.00 Buy Surplus As Low As $4,541.00
    $4,541.00
    Repair Yours $3,770.00
    SIEMENS HDX3B060

    SIEMENS

    HDX3B060

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, W/O LUG, MOLDED CASE, NON-INTERCHANGEABLE TRIP, HIGH INTERRUPTING CAPACITY, THERMAL MAGNETIC, TYPE HDX, 3 POLE, 3 PHASE, 60 AMP, 600 VOLT, 50/6 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $2,601.00
    $2,601.00
    Repair Yours $540.00
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