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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 101-150 of 732.
    SIEMENS QJ23B090

    SIEMENS

    ITE SIEMENS

    QJ23B090

    QJ23B090 CIRCUIT BREAKER, 90A, QJ, CIRCUIT BREAKER, 240V, 90 AMP
    ✓ IN STOCK!
    $1,125.27 Buy Surplus As Low As $466.70
    $466.70
    Repair Yours $348.62
    SIEMENS QJ23B090H

    SIEMENS

    ITE SIEMENS

    QJ23B090H

    CIRCUIT BREAKER, QJ SERIES, TYPE QJ2H, THERMAL MAGNETIC, VERY HIGH INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 90 AMP, 240 VAC
    ✓ IN STOCK!
    $828.52 Buy Surplus As Low As $536.26
    $536.26
    Repair Yours $445.09
    SIEMENS QJ23B150L

    SIEMENS

    QJ23B150L

    BREAKER, QJ 3P 150A 240V 10KA LUGS
    ✓ IN STOCK!
    $951.16 Buy Surplus As Low As $570.70
    $570.70
    Repair Yours $473.68
    SIEMENS QJ23B17501S01

    SIEMENS

    QJ23B17501S01

    BREAKER QJ 3P 175A 240V 10KA ST/AUX
    ✓ IN STOCK!
    $2,043.00 Buy Surplus As Low As $1,226.00
    $1,226.00
    Repair Yours $1,018.00
    EATON CORPORATION CSR2150N

    EATON CORPORATION

    CUTLER HAMMER

    CSR2150N

    CIRCUIT BREAKER, TYPE CSR, 150 AMP, 2 POLE, 120/240 V, SINGLE-PHASE
    ✓ IN STOCK!
    $371.56 Buy Surplus As Low As $274.16
    $274.16
    Repair Yours $227.56
    GENERAL ELECTRIC SB462RG

    GENERAL ELECTRIC

    SB462RG

    SB462RG SAFETY SWITCH - GE, 60A, SB, SAFETY SWITCH, 600V, 60 AMP.
    ✓ IN STOCK!
    $3,546.29 Buy Surplus As Low As $1,365.32
    $1,365.32
    EATON CORPORATION HND312T33W

    EATON CORPORATION

    CUTLER HAMMER

    HND312T33W

    MOLDED CASE CIRCUIT BREAKER, NG FRAME, 3 POLE, 1200 AMP, 600 VAC, 100 KAIC @ 240V, 65 KAIC @ 480V, 50/60 HZ
    ✓ IN STOCK!
    $11,601.30 Buy Surplus As Low As $6,759.00
    $6,759.00
    Repair Yours $5,610.00
    SIEMENS QE120

    SIEMENS

    ITE SIEMENS

    QE120

    QE120 CIRCUIT BREAKER, 20A, QE, CIRCUIT BREAKER, 240V, 20 AMP
    ✓ IN STOCK!
    $336.00 Buy Surplus As Low As $256.00
    $256.00
    Repair Yours Contact Us
    WESTINGHOUSE MCP532500C

    WESTINGHOUSE

    MCP532500C

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, 250AMP, 3POLE, 600VAC
    Buy Surplus As Low As $1,243.00
    $1,243.00
    Repair Yours $1,050.00
    WESTINGHOUSE 2606D56G19

    WESTINGHOUSE

    2606D56G19

    SHUNT TRIP 120VAC RHM FOR LA BRK
    Buy Surplus As Low As $930.00
    $930.00
    Repair Yours $780.00
    CARLING SWITCH CA1-B2-14-630-121-C

    CARLING SWITCH

    CA1-B2-14-630-121-C

    MAGNETIC CIRCUIT BREAKER
    ✓ IN STOCK!
    $71.00 Buy Surplus As Low As $43.00
    $43.00
    Repair Yours Contact Us
    EATON CORPORATION KD3350

    EATON CORPORATION

    CUTLER HAMMER

    KD3350

    TYPE KD BREAKER, 350AMP, 3P, 600VAC MAX, 25KAIC @ 600V
    ✓ IN STOCK!
    $2,444.19 Buy Surplus As Low As $2,254.35
    $2,254.35
    Repair Yours $1,496.89
    FUJI ELECTRIC CP32D/3

    FUJI ELECTRIC

    CP32D/3

    CIRCUIT BREAKER, 3AMP, 2POLE, 250VAC, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $160.00
    $160.00
    Repair Yours $200.00
    EATON CORPORATION HJD3100

    EATON CORPORATION

    CUTLER HAMMER

    HJD3100

    HJD BREAKER COMPLETE 3P 100A 600VAC MAX 65KAIC @ 480V
    ✓ IN STOCK!
    $13,108.81 Buy Surplus As Low As $1,936.18
    $1,936.18
    Repair Yours $1,309.31
    SIEMENS B350H

    SIEMENS

    ITE SIEMENS

    B350H

    CIRCUIT BREAKER, 3POLE, 50AMP, 240VAC, 60HTZ, 3PHASE, B-FRAME TYPE
    ✓ IN STOCK!
    $667.00 Buy Surplus As Low As $104.58
    $104.58
    Repair Yours Contact Us
    SIEMENS G4040B1200

    SIEMENS

    ITE SIEMENS

    G4040B1200

    LOAD CENTER, 40 CIRCUIT, 200A
    Buy Surplus As Low As $900.00
    $900.00
    Repair Yours $760.00
    SIEMENS BF130

    SIEMENS

    ITE SIEMENS

    BF130

    BF130 CIRCUIT BREAKER, 30A, BF, CIRCUIT BREAKER, 120V, 30 AMP
    ✓ IN STOCK!
    $138.02 Buy Surplus As Low As $89.33
    $89.33
    Repair Yours Contact Us
    SIEMENS LC1D3210F7

    SIEMENS

    LC1D3210F7

    DISCONTINUED BY MANUFACTURER, CIRC BREAKER
    Buy Surplus As Low As $159.00
    $159.00
    SIEMENS QJ23B175H

    SIEMENS

    ITE SIEMENS

    QJ23B175H

    CIRCUIT BREAKER, QJ SERIES, TYPE QJ2H, THERMAL MAGNETIC, VERY HIGH INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 175 AMP, 240 VAC
    ✓ IN STOCK!
    $828.52 Buy Surplus As Low As $603.99
    $603.99
    Repair Yours $445.09
    SIEMENS SCND69120ANTH

    SIEMENS

    SCND69120ANTH

    CIRCUIT BREAKER, CND6 3P 600V 1200A LSI 100
    $34,075.00 Buy Surplus As Low As $20,445.00
    $20,445.00
    Repair Yours $16,970.00
    SIEMENS SHMD69800AG

    SIEMENS

    ITE SIEMENS

    SHMD69800AG

    DISCONTINUED BY MANUFACTURER, MOLDED CASE CIRCUIT BREAKER, 3 POLE, 3 PHASE, 600 VAC, 800 AMP, BOLT-ON CONNECTION TYPE, LIG - LONG-TIME-INSTANTANEOUS-GROUND FAULT TRIP FUNCTIONS, MD FRAME TYP ...
    Buy Surplus As Low As $3,988.00
    $3,988.00
    Repair Yours $2,990.00
    SIEMENS LFC3M500

    SIEMENS

    ITE SIEMENS

    LFC3M500

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, TYPE LF, THERMAL MAGNETIC, 3 POLE, 3 PHASE, 500 AMP, 600 VAC
    Buy Surplus As Low As $1,990.00
    $1,990.00
    Repair Yours $1,490.00
    SIEMENS NJX3B400

    SIEMENS

    NJX3B400

    VL J STD INT BREAKER, BREAKER VL NJG 3P 400A FX
    $20,315.00 Buy Surplus As Low As $12,189.00
    $12,189.00
    Repair Yours $10,117.00
    SIEMENS Q23030CT2

    SIEMENS

    Q23030CT2

    Q23030CT2 CIRCUIT BREAKER, 30A, Q, CIRCUIT BREAKER, 240V, 30 AMP
    ✓ IN STOCK!
    $42.51 Buy Surplus As Low As $24.76
    $24.76
    SIEMENS Q310000S01

    SIEMENS

    Q310000S01

    Q310000S01 CIRCUIT BREAKER, 100A, Q, CIRCUIT BREAKER, 240V, 100 AMP
    ✓ IN STOCK!
    $442.73 Buy Surplus As Low As $224.39
    $224.39
    Repair Yours $200.00
    SIEMENS Q350H

    SIEMENS

    Q350H

    Q350H CIRCUIT BREAKER, 50A, Q, CIRCUIT BREAKER, 240V, 50 AMP
    ✓ IN STOCK!
    $310.00 Buy Surplus As Low As $78.22
    $78.22
    SIEMENS QE230

    SIEMENS

    ITE SIEMENS

    QE230

    CIRCUIT BREAKER, LOW VOLTAGE, RESIDENTIAL, GFCI, 30 MA, 2 POLE, 240 V AC, 30 AMP, 10 KA
    ✓ IN STOCK!
    $384.19 Buy Surplus As Low As $224.00
    $224.00
    Repair Yours $200.00
    SIEMENS SADU

    SIEMENS

    SADU

    DISCONTINUED BY MANUFACTURER, BREAKER PLUG-IN AMMETER DISPLAY UNIT
    ✓ IN STOCK!
    Buy Surplus As Low As $2,130.00
    $2,130.00
    Repair Yours $1,800.00
    SIEMENS SCLD69400

    SIEMENS

    SCLD69400

    DISCONTINUED BY MANUFACTURER, MOLDED CASE CIRCUIT BREAKER, CLD6 TYPE, 3 POLE, 600 V, 400 A
    Buy Surplus As Low As $5,990.00
    $5,990.00
    Repair Yours $4,890.00
    SIEMENS NGB2B030B

    SIEMENS

    NGB2B030B

    NGB STD INT BREAKER LOW, BREAKER NGB 30A 2P 480Y 25K LD LUG
    ✓ IN STOCK!
    $1,950.00 Buy Surplus As Low As $875.04
    $875.04
    SIEMENS NGB2B045B

    SIEMENS

    NGB2B045B

    NGB STD INT BREAKER LOW, BREAKER NGB 45A 2P 480Y 25K LD LUG
    ✓ IN STOCK!
    $1,950.00 Buy Surplus As Low As $174.35
    $174.35
    SIEMENS NGB2B060B

    SIEMENS

    NGB2B060B

    NGB STD INT BREAKER LOW, BREAKER NGB 60A 2P 480Y 25K LD LUG
    ✓ IN STOCK!
    $1,950.00 Buy Surplus As Low As $875.04
    $875.04
    SIEMENS NGB3B090B

    SIEMENS

    NGB3B090B

    CIRCUIT BREAKER, 90 AMP, 600 V, 3 POLE
    ✓ IN STOCK!
    $2,996.00 Buy Surplus As Low As $400.29
    $400.29
    Repair Yours $332.24
    SIEMENS NGB3B100B

    SIEMENS

    NGB3B100B

    CIRCUIT BREAKER, VL SERIES, TYPE NGB, THERMAL MAGNETIC, STANDARD INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 100 AMP, 600 VAC
    ✓ IN STOCK!
    $2,996.00 Buy Surplus As Low As $362.88
    $362.88
    SIEMENS NGB3B125B

    SIEMENS

    NGB3B125B

    MOLDED CASE CIRCUIT BREAKER, VL SERIES, STANDARD INTERRUPTING CAPACITY, 3 POLE, 3 PHASES, 600 VAC, 125 AMP, BOLT-ON CONNECTION TYPE, PANELBOARD MOUNTING, LI- LONG-TIME & INSTANTANEOUS TRIP F ...
    ✓ IN STOCK!
    $6,285.06 Buy Surplus As Low As $389.00
    $389.00
    Repair Yours $323.00
    SIEMENS Q170

    SIEMENS

    Q170

    MOLDED CASE CIRCUIT BREAKER, STANDARD INTERRUPTING CAPACITY, 1 POLE, 1 PHASE, 120 VAC, 70 AMP, PLUG-IN CONNECTION TYPE
    ✓ IN STOCK!
    $18.90 Buy Surplus As Low As $11.34
    $11.34
    Repair Yours Contact Us
    SIEMENS Q2100H

    SIEMENS

    ITE SIEMENS

    Q2100H

    CIRCUIT BREAKER, 100 AMP, 2 POLE, 120/240V, 22KA QPH
    ✓ IN STOCK!
    $145.85 Buy Surplus As Low As $110.00
    $110.00
    Repair Yours Contact Us
    SIEMENS Q2150BHH

    SIEMENS

    ITE SIEMENS

    Q2150BHH

    Q2150BHH CIRCUIT BREAKER, 150A, Q, CIRCUIT BREAKER, 240V, 150 AMP
    ✓ IN STOCK!
    $455.84 Buy Surplus As Low As $265.54
    $265.54
    Repair Yours $220.39
    SIEMENS Q21530CT

    SIEMENS

    Q21530CT

    CIRCUIT BREAKER, Q SERIES, TYPE QT, THERMAL MAGNETIC, STANDARD INTERRUPTING CAPACITY, 2 POLE, 1 PHASE, 15/30 AMP, 120/240 VAC
    ✓ IN STOCK!
    $40.61 Buy Surplus As Low As $23.66
    $23.66
    Repair Yours Contact Us
    SIEMENS Q215H

    SIEMENS

    Q215H

    Q215H CIRCUIT BREAKER, 15A, Q, CIRCUIT BREAKER, 240V, 15 AMP
    ✓ IN STOCK!
    $133.00 Buy Surplus As Low As $30.80
    $30.80
    SIEMENS Q22030CT

    SIEMENS

    Q22030CT

    CIRCUIT BREAKER, Q SERIES, TYPE QT, THERMAL MAGNETIC, STANDARD INTERRUPTING CAPACITY, 2 POLE, 1 PHASE, 20/30 AMP, 120/240 VAC
    ✓ IN STOCK!
    $66.95 Buy Surplus As Low As $39.00
    $39.00
    Repair Yours Contact Us
    SIEMENS SND69800ANGT

    SIEMENS

    SND69800ANGT

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, ND6, 3-POLE, 600 V, 800 A, 25 KA, REPLACED BY SND6B800LSIG
    ✓ IN STOCK!
    Buy Surplus As Low As $6,000.00
    $6,000.00
    Repair Yours $5,000.00
    SIEMENS SLVBH3620G

    SIEMENS

    SLVBH3620G

    BUS PLUG, SENTRON LOW-AMP, TYPE SLVBH, 3PH, 3W, 600V, 60A, 200KA@480V, COMPLETE WITH GROUND, FUSIBLE, ACCEPTS CLASS R, H, K FUSES
    ✓ IN STOCK!
    $3,260.63 Buy Surplus As Low As $1,758.33
    $1,758.33
    SIEMENS SLVBH4640G

    SIEMENS

    SLVBH4640G

    BUS WAY SWITCH, FUSIBLE, 3 PHASE, 4 WIRE, SENTRON II, HEAVY DUTY, HORIZONTAL ORIENTATION, 600 VOLTS, 200 AMPS MAX, IP40, INTERNAL GROUND
    ✓ IN STOCK!
    $7,782.00 Buy Surplus As Low As $2,564.60
    $2,564.60
    SIEMENS U06FD60

    SIEMENS

    U06FD60

    CIRCUIT BREAKER, MOLDED CASE, U06 SERIES, 480 VAC, 1 UNDERVOLTAGE TRIP
    ✓ IN STOCK!
    $2,103.00 Buy Surplus As Low As $1,599.00
    $1,599.00
    Repair Yours $402.63
    SIEMENS SMD69800ANTH

    SIEMENS

    SMD69800ANTH

    BREAKER, MD6 3P 600V 800A LSI 100
    $15,215.00 Buy Surplus As Low As $9,129.00
    $9,129.00
    Repair Yours $7,578.00
    SIEMENS TC5R600

    SIEMENS

    TC5R600

    BREAKER LUG TERMINAL, PD/RD CU BODY LUG, 5 W, 600 KCMIL, COPPER TYPE
    ✓ IN STOCK!
    $1,750.00 Buy Surplus As Low As $211.05
    $211.05
    SIEMENS W410190

    SIEMENS

    W410190

    S SW PARTS HD, GDSS 30A NEUTRAL KIT
    $90.00 Buy Surplus As Low As $54.00
    $54.00
    ASEA BROWN BOVERI T1N030TLA

    ASEA BROWN BOVERI

    T1N030TLA

    BKR T1N 30A 3P T/M AS
    ✓ IN STOCK!
    $720.00 Buy Surplus As Low As $432.00
    $432.00
    Repair Yours $359.00
    GENERAL ELECTRIC THJK436250WL

    GENERAL ELECTRIC

    THJK436250WL

    CIRCUIT BREAKER 250AMP 3POLE 600V W/LUGS
    ✓ IN STOCK!
    $3,205.71 Buy Surplus As Low As $2,520.20
    $2,520.20
    Repair Yours $1,683.74
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