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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 351-400 of 879.
    EATON CORPORATION KT3350T

    EATON CORPORATION

    CUTLER HAMMER

    KT3350T

    CIRCUIT BREAKER TRIP UNIT, TRIP UNIT ONLY, TYPE KT, 350 AMP, 3 POLE, 600 VAC MAX
    ✓ IN STOCK!
    $615.54 Buy Surplus As Low As $365.63
    $365.63
    EATON CORPORATION MBE2040B200BTS

    EATON CORPORATION

    CUTLER HAMMER

    MBE2040B200BTS

    CIRCUIT BREAKER, EUSERC, BR, 200 AMP, 20/40 CKT, BTM/TOP FEED
    ✓ IN STOCK!
    $1,710.00 Buy Surplus As Low As $1,425.00
    $1,425.00
    Repair Yours $946.20
    EATON CORPORATION MCP331000CR

    EATON CORPORATION

    CUTLER HAMMER

    MCP331000CR

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, MCP SERIES,100 AMP, 3 POLE, 600 V, BOLT-ON, W/ MANUAL TRIP MAGNETIC RANGE 275-1000 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $648.00
    $648.00
    Repair Yours $390.00
    EATON CORPORATION P3F361RG

    EATON CORPORATION

    CUTLER HAMMER

    P3F361RG

    PRW III 30 AMP 600V IN. RIN. FUSIBLE PLUG W/ INT GRD
    ✓ IN STOCK!
    $4,126.70 Buy Surplus As Low As $2,476.02
    $2,476.02
    EATON CORPORATION QC3050H

    EATON CORPORATION

    CUTLER HAMMER

    QC3050H

    CIRCUIT BREAKER, TYPE QC, 50 AMP, 3 POLE, 120/240 VAC, 10 KAIC
    ✓ IN STOCK!
    $124.44 Buy Surplus As Low As $82.13
    $82.13
    Repair Yours $300.00
    FUJI ELECTRIC BU-ECA2050

    FUJI ELECTRIC

    BU-ECA2050

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 50AMP, 240VAC, 2-POLE, 50/60HZ
    ✓ IN STOCK!
    $270.00 Buy New $270.00
    $118.10
    Repair Yours $300.00
    FUJI ELECTRIC EA203B/225

    FUJI ELECTRIC

    EA203B/225

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 225 AMP, 3 POLE
    ✓ IN STOCK!
    Buy Surplus As Low As $715.41
    $715.41
    Repair Yours $698.00
    FUJI ELECTRIC EG33B-10-30MA

    FUJI ELECTRIC

    EG33B-10-30MA

    CIRCUIT BREAKER, 10AMP, 3 POLE, 100/200V, 30MA
    ✓ IN STOCK!
    $418.20 Buy New $418.20
    $162.98
    Repair Yours $300.00
    GENERAL ELECTRIC AB37B

    GENERAL ELECTRIC

    AB37B

    PANEL BOARD A-SERIES BOX , AB37B
    ✓ IN STOCK!
    $399.24 Buy Surplus As Low As $179.28
    $179.28
    Repair Yours $300.00
    EATON CORPORATION BJ3200

    EATON CORPORATION

    CUTLER HAMMER

    BJ3200

    MAIN BREAKER, TYPE BJ, COMMON BREAKER TRIP, 200 AMP, 10 KAIC, 3 POLE, 240 V
    ✓ IN STOCK!
    $872.61 Buy Surplus As Low As $523.57
    $523.57
    Repair Yours $500.94
    EATON CORPORATION BR48L125RP

    EATON CORPORATION

    CUTLER HAMMER

    BR48L125RP

    CIRCUIT BREAKER, LOAD CENTER, MAIN LUG, 125A, 120/240V, 1PH, 4/8, NEMA 3R
    $727.00 Buy Surplus As Low As $392.00
    $392.00
    Repair Yours $326.00
    EATON CORPORATION CH360

    EATON CORPORATION

    CUTLER HAMMER

    CH360

    60 AMP, 120/240 VAC, 3 POLE, PLUG IN TYPE CH CIRCUIT BREAKER, (MOQ=1, PKG QTY=1)
    ✓ IN STOCK!
    $154.56 Buy Surplus As Low As $92.74
    $92.74
    Repair Yours $300.00
    EATON CORPORATION CH8L125RP

    EATON CORPORATION

    CUTLER HAMMER

    CH8L125RP

    CH MAIN LUG LOADCENTERS, COVER INCLUDED, MAIN LUG ONLY, 125A, 7R, COPPER, NEMA 3R, METALLIC, OVERHEAD, CH, 8, 8, THREE-WIRE, SINGLE-PHASE, 120240 V, 208 Y120, 240 V, 6-10 AWG
    ✓ IN STOCK!
    $194.70 Buy Surplus As Low As $147.97
    $147.97
    Repair Yours $300.00
    EATON CORPORATION DK3400

    EATON CORPORATION

    CUTLER HAMMER

    DK3400

    (PRICE/EA) CIRCUIT BREAKER, 3 POLE, 400A; PRODUCT RANGE:DK SERIES; CURRENT RATING:400A; NO. OF POLES:3 POLE; VOLTAGE RATING VDC:250VDC; VOLTAGE RATING VAC:240VAC; CIRCUIT BREAKER MOUNTING:DI ...
    ✓ IN STOCK!
    $2,035.16 Buy Surplus As Low As $1,221.10
    $1,221.10
    EATON CORPORATION EHD2020L

    EATON CORPORATION

    CUTLER HAMMER

    EHD2020L

    MOLDED CASE CIRCUIT BREAKER, C SERIES, F-FRAME, 480 VAC, 250 VDC, 2-POLE, 20 AMP, LINE AND LOAD TERMINALS
    $727.00 Buy Surplus As Low As $410.88
    $410.88
    Repair Yours $319.00
    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 $149.37
    $149.37
    Repair Yours $200.00
    EATON CORPORATION WMS3C30

    EATON CORPORATION

    CUTLER HAMMER

    WMS3C30

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, C-CURVE, 30 AMP, 3 POLE, 480 VAC, PLUG-IN
    ✓ IN STOCK!
    Buy Surplus As Low As $180.00
    $180.00
    EATON CORPORATION WMS-3C40

    EATON CORPORATION

    CUTLER HAMMER

    WMS-3C40

    CIRCUIT BREAKER, 40AMP, 3POLE, 480 VAC
    ✓ IN STOCK!
    $95.06 Buy Surplus As Low As $73.13
    $73.13
    Repair Yours $300.00
    GENERAL ELECTRIC FVK361R

    GENERAL ELECTRIC

    FVK361R

    BUSPLUG, FUSIBLE, 3 PHASE, 30 AMP, 3 WATTS, 600 VAC, GROUND NOT INCLUDED, CLASS H/R/T/L FUSES, TYPE FVK SWITCH
    ✓ IN STOCK!
    $4,139.09 Buy Surplus As Low As $2,731.80
    $2,731.80
    Repair Yours $1,317.85
    GENERAL ELECTRIC SB362RG

    GENERAL ELECTRIC

    SB362RG

    BUS PLUG, 3 PHASE, 600V, 60A, 3-WIRE, GROUND, FUSIBLE, SPECTRA SB
    ✓ IN STOCK!
    $2,392.30 Buy Surplus As Low As $972.54
    $972.54
    GENERAL ELECTRIC SB362RGR

    GENERAL ELECTRIC

    SB362RGR

    BUS PLUG, FUSIBLE, SWITCH OPERATED, 3 PHASE, 3 WIRE, 600V, 60 AMP, WITH GROUND, REJECTION STYLE FUSE CLIP, SPECTRA
    ✓ IN STOCK!
    $3,489.64 Buy Surplus As Low As $1,020.00
    $1,020.00
    Repair Yours $790.00
    GENERAL ELECTRIC SB364RG

    GENERAL ELECTRIC

    SB364RG

    BUS PLUG, 3 PHASE, 600V, 200A, 3-WIRE, GROUND, FUSIBLE, SPECTRA SB
    ✓ IN STOCK!
    $8,150.00 Buy Surplus As Low As $4,890.00
    $4,890.00
    GENERAL ELECTRIC SB462RG

    GENERAL ELECTRIC

    SB462RG

    SB462RG SAFETY SWITCH - GE, 60A, SB, SAFETY SWITCH, 600V, 60 AMP.
    ✓ IN STOCK!
    $2,251.77 Buy Surplus As Low As $915.77
    $915.77
    GENERAL ELECTRIC SFHA36AT0250

    GENERAL ELECTRIC

    SFHA36AT0250

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SPECTRA SERIES, FRAME ONLY, SFHA TYPE, 250 AMP, 3-POLE, 3-PHASE, 600 VAC, BOLT-ON
    ✓ IN STOCK!
    $780.00 Buy Surplus As Low As $468.00
    $468.00
    Repair Yours $350.00
    GENERAL ELECTRIC SFLA36AI0250

    GENERAL ELECTRIC

    SFLA36AI0250

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SPECTRA SERIES, TYPE SFLA, MOLDED CASE, 3-POLE, 3-PHASE, 250 AMP, 600 V, 65KA@480V, HIGH INTERRUPTING CAPACITY, CURRENT LIMITING, BOLT-ON
    ✓ IN STOCK!
    $1,300.00 Buy Surplus As Low As $690.00
    $690.00
    Repair Yours $550.00
    GENERAL ELECTRIC SGHA36AT0400

    GENERAL ELECTRIC

    SGHA36AT0400

    CIRCUIT BREAKER, SPECTRA, 3 POLE, 3 PHASE, 400A, 600V, 35KAIC @ 480V, STANDARD INTERRUPT, BOLT-ON, REVERSE FEED, UL, LSI TRIP, WITHOUT LUGS, SOLID STATE ELECTRONIC
    ✓ IN STOCK!
    $1,923.74 Buy Surplus As Low As $893.34
    $893.34
    Repair Yours $695.00
    GENERAL ELECTRIC SRPF250A200

    GENERAL ELECTRIC

    SRPF250A200

    DISCONTINUED BY MANUFACTURER, RATING PLUG, 200 AMP, 480 V AC, 3-POLE, SPECTRA F
    ✓ IN STOCK!
    $200.00 Buy Surplus As Low As $152.00
    $152.00
    GENERAL ELECTRIC TEC36050

    GENERAL ELECTRIC

    TEC36050

    DISCONTINUED BY MANUFACTURER, MOLDED CASE CIRCUIT BREAKER, 50 AMP, 3 POLE, 600 VAC, W/ LUGS
    ✓ IN STOCK!
    Buy Surplus As Low As $1,947.72
    $1,947.72
    Repair Yours $300.00
    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!
    $658.66 Buy Surplus As Low As $395.19
    $395.19
    Repair Yours $328.01
    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!
    $250.00 Buy Surplus As Low As $137.50
    $137.50
    Repair Yours $200.00
    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!
    $303.80 Buy Surplus As Low As $182.28
    $182.28
    GENERAL ELECTRIC TFK236T225

    GENERAL ELECTRIC

    TFK236T225

    TRIP UNIT, THERMAL MAGNETIC, 225 AMP, 3 POLE, 600 VAC MAX, ADJUSTABLE, 1000-2250 AMP MAG ADJUST, FOR TYPE TFK/THFK MOLDED CASE CIRCUIT BREAKERS
    ✓ IN STOCK!
    $1,065.35 Buy Surplus As Low As $539.69
    $539.69
    GENERAL ELECTRIC THED136030WL

    GENERAL ELECTRIC

    THED136030WL

    CIRCUIT BREAKER, 30 AMP, 3 POLE, 600 VAC, W/LUGS
    ✓ IN STOCK!
    $555.06 Buy Surplus As Low As $333.04
    $333.04
    Repair Yours $300.00
    GENERAL ELECTRIC AC361RG

    GENERAL ELECTRIC

    AC361RG

    BUS PLUG, 3 PHASE, 3 WATT, 600V, 30 AMP
    ✓ IN STOCK!
    $3,083.59 Buy Surplus As Low As $1,234.38
    $1,234.38
    GENERAL ELECTRIC THFK236F000

    GENERAL ELECTRIC

    THFK236F000

    CIRCUIT BREAKER, HI-BREAK FRAME ONLY, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, TFK FRAME TYPE, 225 AMP, 600 VAC, 3 POLE, 3 PHASE, 25KAIC@480V, BOLT-ON
    ✓ IN STOCK!
    $2,489.39 Buy Surplus As Low As $927.82
    $927.82
    Repair Yours $600.00
    GENERAL ELECTRIC THQB32100

    GENERAL ELECTRIC

    THQB32100

    CIRCUIT BREAKER, Q LINE, 10 KAIC, BOLT-ON, 3 POLE, 240 V, 100 AMP
    ✓ IN STOCK!
    $734.68 Buy Surplus As Low As $363.69
    $363.69
    GENERAL ELECTRIC THQD32200WL

    GENERAL ELECTRIC

    THQD32200WL

    CIRCUIT BREAKER, Q-LINE, 3 POLE, 3 PHASE, 200 AMP, 240V, 22KAIC, LINE & LOAD SIDE LUGS, FEED-THRU, THERMAL MAGNETIC , THQD32200WL
    ✓ IN STOCK!
    $2,464.98 Buy Surplus As Low As $1,478.99
    $1,478.99
    GENERAL ELECTRIC TJC-36600G

    GENERAL ELECTRIC

    TJC-36600G

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 600AMP, 3POLE, 600VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $2,085.30
    $2,085.30
    Repair Yours $2,054.22
    GENERAL ELECTRIC TJJ426300

    GENERAL ELECTRIC

    TJJ426300

    CIRCUIT BREAKER 300AMP 600V 2POLE
    ✓ IN STOCK!
    $1,185.65 Buy Surplus As Low As $729.89
    $729.89
    Repair Yours $590.45
    GENERAL ELECTRIC V37316

    GENERAL ELECTRIC

    V37316

    CIRCUIT BREAKER 16AMP 3POLE
    ✓ IN STOCK!
    $160.56 Buy Surplus As Low As $62.58
    $62.58
    NORDSON 274585B

    NORDSON

    274585B

    CIRCUIT BREAKER, 30 AMP, 3 POLE, COIL 24V
    ✓ IN STOCK!
    $198.72 Buy Surplus As Low As $110.10
    $110.10
    Repair Yours $300.00
    SIEMENS 3RV1021-1AA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1021-1AA10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SIZE S0, MOTOR PROTECTION, CLASS 10, 1.1-1.6 AMP ADJUSTMENT RANGE, 21 AMP SHORT-CIRCUIT RELEASE, SCREW TERMINALS, 3 POLE, 400 VAC, 50/60 HZ, (S ...
    ✓ IN STOCK!
    Buy Surplus As Low As $59.15
    $59.15
    SIEMENS 3RV1021-1GA10

    SIEMENS

    3RV1021-1GA10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, SIZE S0, MOTOR PROTECTION, CLASS 10, 4.5-6.3 AMP RELEASE, SCREW TERMINALS, STANDARD SWITCHING CAPACITY, (SUCCESSOR: 3RV2011-1GA10)
    ✓ IN STOCK!
    Buy Surplus As Low As $47.80
    $47.80
    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 $132.64
    $132.64
    Repair Yours $200.00
    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 $142.47
    $142.47
    Repair Yours $200.00
    SIEMENS 3RV1042-4HA10

    SIEMENS

    FURNAS ELECTRIC CO

    3RV1042-4HA10

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, MSP, TYPE E, S3 A-RELEASES, CL10 36-50A, SCREW, WITH OVERLOAD RELAY FUNCTION
    ✓ IN STOCK!
    Buy Surplus As Low As $499.55
    $499.55
    Repair Yours $399.00
    SIEMENS Q360H

    SIEMENS

    Q360H

    Q360H CIRCUIT BREAKER, 60A, Q, CIRCUIT BREAKER, 240V, 60 AMP
    ✓ IN STOCK!
    $98.38 Buy Surplus As Low As $59.03
    $59.03
    Repair Yours $300.00
    SIEMENS BE120

    SIEMENS

    ITE SIEMENS

    BE120

    CIRCUIT BREAKER, TYPE BLE, GFCI 30MA, 20AMP, 1 POLE, 120VAC, 10KA
    ✓ IN STOCK!
    $467.71 Buy Surplus As Low As $280.63
    $280.63
    Repair Yours $232.92
    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 $158.98
    $158.98
    Repair Yours $200.00
    SIEMENS EH3-B020

    SIEMENS

    ITE SIEMENS

    EH3-B020

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 20 AMP, 3 POLE, 240/480 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $529.00
    $529.00
    Repair Yours $439.07
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