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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 251-300 of 449.
    SIEMENS B390H00S01

    SIEMENS

    B390H00S01

    B390H00S01 CIRCUIT BREAKER, 90A, B, CIRCUIT BREAKER, 240V, 90 AMP
    $976.00 Buy Surplus As Low As $586.00
    $586.00
    Repair Yours $487.00
    SIEMENS BE215H

    SIEMENS

    BE215H

    BREAKERR BLEH GFCI 30MA 2P 240V 15A 22KA, 2 POLE 22K GF 30MA
    $464.00 Buy Surplus As Low As $279.00
    $279.00
    Repair Yours $232.00
    SIEMENS CED62B070

    SIEMENS

    CED62B070

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 70 AMP
    $9,381.00 Buy Surplus As Low As $5,629.00
    $5,629.00
    Repair Yours $4,673.00
    SIEMENS CED63B110

    SIEMENS

    CED63B110

    CIRCUIT BREAKER, SENTRON SERIES, TYPE CED, 3 POLE, 3 PHASE, 110 AMP, 600 VAC, 200KA @ 480V, EXTRA HIGH INTERRUPT, BOLT-ON, LOAD SIDE LUGS, THERMAL MAGNETIC
    $15,313.00 Buy Surplus As Low As $9,188.00
    $9,188.00
    Repair Yours $7,627.00
    SIEMENS CED63B125L

    SIEMENS

    ITE SIEMENS

    CED63B125L

    CIRCUIT BREAKER, SENTRON SERIES, CED TYPE, THERMAL MAGNETIC, 100KA, 125AMP, 3POLE, 3PHASE, 600VAC, WITH LUGS
    ✓ IN STOCK!
    $15,313.00 Buy Surplus As Low As $11,638.00
    $11,638.00
    Repair Yours $7,627.00
    SIEMENS CED63S125A

    SIEMENS

    CED63S125A

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE ED, 600 VAC, 3 POLE, MOLDED CASE SWITCH, 125 AMP , AUTOMATIC SELF PROTECTION
    $15,872.00 Buy Surplus As Low As $9,524.00
    $9,524.00
    Repair Yours $7,905.00
    SIEMENS CED63B015

    SIEMENS

    ITE SIEMENS

    CED63B015

    CED63B015 CIRCUIT BREAKER, 15A, CED, CIRCUIT BREAKER, 600V, 15 AMP
    ✓ IN STOCK!
    $10,035.00 Buy Surplus As Low As $256.00
    $256.00
    Repair Yours $210.00
    SIEMENS CED63B100

    SIEMENS

    ITE SIEMENS

    CED63B100

    CIRCUIT BREAKER, TYPE CED6, 100AMP, 3POLE, 600VAC, MOLDED CASE, WITH THERMAL - MAGNETIC TRIP UNIT
    ✓ IN STOCK!
    $10,035.00 Buy Surplus As Low As $1,733.99
    $1,733.99
    Repair Yours $1,440.00
    SIEMENS ED23B015L

    SIEMENS

    SIEMENS INDUSTRY

    ED23B015L

    CIRCUIT BREAKER, TYPE ED2, 3P, 240V, 15A, LUG
    ✓ IN STOCK!
    $357.00 Buy New $357.00
    $303.45
    Repair Yours $200.00
    SIEMENS 3TC1GG20

    SIEMENS

    3TC1GG20

    CIRCUIT BREAKER, NGG 125A STEEL LUGS PKG-3 ACC
    $60.00 Buy Surplus As Low As $36.00
    $36.00
    Repair Yours $200.00
    SIEMENS 5SJ4340-8HG41

    SIEMENS

    5SJ4340-8HG41

    MINIATURE CIRCUIT BREAKER 240 V 10KA, 3-POLE, D, 40A, D=70 MM ACCORDING TO UL 489
    $301.00 Buy Surplus As Low As $181.00
    $181.00
    Repair Yours $200.00
    SIEMENS 5SY4510-7

    SIEMENS

    5SY4510-7

    CIRCUIT BREAKER, MINIATURE, 1 POLE +N, 10 AMP, 230 VAC, 50/60 HZ, 20 KA, C CURVE, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -40 TO +70 DEGREES C, IP20
    ✓ IN STOCK!
    $105.00 Buy Surplus As Low As $63.00
    $63.00
    SIEMENS 5SJ4120-6HG40

    SIEMENS

    5SJ4120-6HG40

    CIRCUIT BREAKER, MCB 5SJ4 1P 240V 20A SAME PH 14K B-TRIP
    ✓ IN STOCK!
    $68.00 Buy Surplus As Low As $41.00
    $41.00
    Repair Yours $200.00
    SIEMENS 5SJ4120-7HG40

    SIEMENS

    5SJ4120-7HG40

    MINIATURE CIRCUIT BREAKER, 240 V, 14KA, 1-POLE, C, 20 A, D=70 MM ACCORDING TO UL 489, EQUAL POLARITY
    ✓ IN STOCK!
    $86.00 Buy Surplus As Low As $52.00
    $52.00
    Repair Yours $200.00
    SIEMENS 5SJ4140-7HG40

    SIEMENS

    5SJ4140-7HG40

    MINIATURE CIRCUIT BREAKER 240 V 14KA, 1-POLE, C, 40A, D=70 MM ACCORDING TO UL 489, EQUAL POLARITY
    $65.00 Buy Surplus As Low As $39.00
    $39.00
    Repair Yours $200.00
    SIEMENS 5SJ4101-7HG40

    SIEMENS

    5SJ4101-7HG40

    MOLDED CIRCUIT BREAKER, MINIATURE, 5SJ4 SERIES, C CURVE, 1 AMP, 1 POLE, 240 VAC, 14 KA, DIN RAIL MOUNT
    ✓ IN STOCK!
    $65.00 Buy Surplus As Low As $39.00
    $39.00
    Repair Yours $200.00
    SIEMENS 5SJ4101-7HG41

    SIEMENS

    5SJ4101-7HG41

    MINIATURE CIRCUIT BREAKER, 240 VAC, 60 VDC, 14KA, 1-POLE, DIN MOUNT
    $95.00 Buy Surplus As Low As $57.00
    $57.00
    Repair Yours $200.00
    SIEMENS 5SJ4101-8HG40

    SIEMENS

    5SJ4101-8HG40

    MCB 5SJ4 1P 240V 1A SAME PH 14K D-TRIP, N4B, STND 1POLE 240VAC, SAME POLARITY
    ✓ IN STOCK!
    $62.00 Buy Surplus As Low As $38.00
    $38.00
    Repair Yours $200.00
    SIEMENS 5SJ4101-8HG41

    SIEMENS

    5SJ4101-8HG41

    MINIATURE CIRCUIT BREAKER, 240 VAC VOLTAGE, 1 AMP CURRENT, 1 POLE, D-CHAR, DIN RAIL MOUNT
    ✓ IN STOCK!
    $95.00 Buy Surplus As Low As $73.00
    $73.00
    Repair Yours $200.00
    SIEMENS 5SJ4102-7HG40

    SIEMENS

    5SJ4102-7HG40

    MINI CIRCUIT BREAKER, AUTOMATIC SWITCH, 2AMP, SINGLE POLE, 240V, C-TRIP CURVE, UL-489
    ✓ IN STOCK!
    $113.00 Buy Surplus As Low As $66.00
    $66.00
    Repair Yours $200.00
    SIEMENS 5SJ4108-7HG41

    SIEMENS

    5SJ4108-7HG41

    CIRCUIT BREAKER, 1 POLE, 8 AMP, 14K C-TRIP, 240 V
    ✓ IN STOCK!
    $71.00 Buy Surplus As Low As $47.00
    $47.00
    Repair Yours $200.00
    SIEMENS 5SJ4110-6HG40

    SIEMENS

    5SJ4110-6HG40

    MINIATURE CIRCUIT BREAKER, 240V, 14KA, 1-POLE, B, 10A, D=70 MM ACCORDING TO UL 489, EQUAL POLARITY
    ✓ IN STOCK!
    $64.00 Buy Surplus As Low As $49.00
    $49.00
    Repair Yours $200.00
    SIEMENS 5SJ4111-7HG40

    SIEMENS

    5SJ4111-7HG40

    CIRCUIT BREAKER, MINIATURE, 240 VOLT, 5 AMP, 1-POLE, EQUAL POLARITY
    ✓ IN STOCK!
    $82.00 Buy Surplus As Low As $47.72
    $47.72
    Repair Yours $200.00
    SIEMENS 5SY4116-7

    SIEMENS

    ITE SIEMENS

    5SY4116-7

    MINIATURE CIRCUIT BREAKER, 230/400 V, 10 KA, 1-POLE, C, 16 A, D=70 MM
    ✓ IN STOCK!
    $46.00 Buy Surplus As Low As $28.00
    $28.00
    Repair Yours $200.00
    SIEMENS 5SY4205-7

    SIEMENS

    5SY4205-7

    CIRCUIT BREAKER, MINIATURE, 2 POLE, 0.5 AMP, 480 V, C-CURVE, 10 KA, DIN RAIL MOUNT
    ✓ IN STOCK!
    $130.00 Buy Surplus As Low As $99.00
    $99.00
    SIEMENS 5SY4215-8

    SIEMENS

    5SY4215-8

    MINIATURE CIRCUIT BREAKER 400 V 10KA, 2-POLE, D, 1.6A, D=70 MM
    ✓ IN STOCK!
    $130.00 Buy Surplus As Low As $99.00
    $99.00
    Repair Yours $200.00
    SIEMENS 5SX2210-8

    SIEMENS

    ITE SIEMENS

    5SX2210-8

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, D-CURVE, 10 AMP, 2 POLE, 400 V AC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $53.00
    $53.00
    SIEMENS 5SY4103-7

    SIEMENS

    ITE SIEMENS

    5SY4103-7

    CIRCUIT BREAKER, MINIATURE, 1 POLE, 3 AMP, 230/400 V, 10K, C-CURVE, DIN RAIL MOUNT
    ✓ IN STOCK!
    $61.00 Buy Surplus As Low As $25.81
    $25.81
    SIEMENS 5SY4104-7

    SIEMENS

    5SY4104-7

    CIRCUIT BREAKER, MINIATURE, 1 POLE, 4 AMP, 230/400 VAC, 10 KA, C-CURVE, SCREW TERMINAL, DIN-RAIL MOUNT
    ✓ IN STOCK!
    $66.00 Buy Surplus As Low As $17.50
    $17.50
    SIEMENS 5SY4106-8

    SIEMENS

    5SY4106-8

    CIRCUIT BREAKER, MINIATURE, 6 AMP, 1 POLE, 230/400 V, 10 KA, D-CURVE, D=70 MM, SCREW TERMINALS, DIN-RAIL MOUNT
    ✓ IN STOCK!
    $61.00 Buy Surplus As Low As $37.00
    $37.00
    SIEMENS 5SY4111-7

    SIEMENS

    ITE SIEMENS

    5SY4111-7

    CIRCUIT BREAKER, 5AMP, 1POLE, 230/400V, C-CURVE, DIN RAIL MOUNT
    ✓ IN STOCK!
    $56.00 Buy Surplus As Low As $35.00
    $35.00
    Repair Yours $200.00
    SIEMENS 5SY4632-7

    SIEMENS

    5SY4632-7

    CIRCUIT BREAKER, MINIATURE, 3 POLE+N, 32 AMP, 230-440 VAC, 50/60 HZ, 20 KA, C CURVE, SCREW TYPE TERMINAL, DIN RAIL MOUNT, -40 TO +70 DEGREES C, IP20
    $237.00 Buy Surplus As Low As $143.00
    $143.00
    SIEMENS BE220H

    SIEMENS

    BE220H

    BREAKERR BLEH GFCI 30MA 2P 240V 20A 22KA, 2 POLE 22K GF 30MA
    $415.00 Buy Surplus As Low As $249.00
    $249.00
    Repair Yours $207.00
    SIEMENS CED62B100

    SIEMENS

    CED62B100

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 100 AMP
    $8,643.00 Buy Surplus As Low As $5,186.00
    $5,186.00
    Repair Yours $4,305.00
    SIEMENS CED63B040L

    SIEMENS

    ITE SIEMENS

    CED63B040L

    CIRCUIT BREAKER, 100KA, 40AMP, 3POLE, 600VAC, W/LUGS
    ✓ IN STOCK!
    $10,035.00 Buy Surplus As Low As $7,627.00
    $7,627.00
    Repair Yours $4,998.00
    SIEMENS CED63B050

    SIEMENS

    ITE SIEMENS

    CED63B050

    MOLDED CASE CIRCUIT BREAKER, TYPE CED6, CURRENT LIMITING, 50 AMP, 3 POLE, 600 VAC, 100 KA, 50/60 HZ, W/LUGS
    ✓ IN STOCK!
    $10,035.00 Buy Surplus As Low As $1,790.00
    $1,790.00
    Repair Yours $1,290.00
    SIEMENS CED63B090

    SIEMENS

    CED63B090

    CIRCUIT BREAKER, SENTRON, TYPE CED, 3 POLE, 3 PHASE, 90 AMP, 600V, 200KA @ 480V, EXTRA HIGH INTERRUPT, BOLT ON, LOAD SIDE LUGS, THERMAL MAGNETIC
    ✓ IN STOCK!
    $1,500.00 Buy Surplus As Low As $900.00
    $900.00
    Repair Yours $747.00
    SIEMENS CED63B100L

    SIEMENS

    ITE SIEMENS

    CED63B100L

    CIRCUIT BREAKER, 100KA, 100AMP, 3POLE, 600VAC, WITH LUGS
    ✓ IN STOCK!
    $10,035.00 Buy Surplus As Low As $7,627.00
    $7,627.00
    Repair Yours $4,998.00
    SIEMENS CED63S100A

    SIEMENS

    CED63S100A

    CIRCUIT BREAKER, SENTRON SERIES, TYPE CED, THERMAL MAGNETIC, EXTRA HIGH INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 100 AMP, 600 VAC
    $10,198.00 Buy Surplus As Low As $6,119.00
    $6,119.00
    Repair Yours $5,079.00
    SIEMENS CMD63B700

    SIEMENS

    CMD63B700

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE MD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 700 AMP
    $41,594.00 Buy Surplus As Low As $24,957.00
    $24,957.00
    Repair Yours $20,715.00
    SIEMENS CND63B120

    SIEMENS

    CND63B120

    CIRCUIT BREAKER, 1200-AMP, CND, 600V
    ✓ IN STOCK!
    $4,086.00 Buy Surplus As Low As $3,106.00
    $3,106.00
    Repair Yours $2,036.00
    SIEMENS E2RHV9

    SIEMENS

    E2RHV9

    BREAKER ED VAR DEPTH THROUGH DOOR OPER, OEM ACCESSORIES
    $487.00 Buy Surplus As Low As $293.00
    $293.00
    Repair Yours $244.00
    SIEMENS ED21B015L

    SIEMENS

    ITE SIEMENS

    ED21B015L

    CIRCUIT BREAKER, 1 POLE, 240V, 15A, LUG
    ✓ IN STOCK!
    $122.85 Buy Surplus As Low As $116.71
    $116.71
    Repair Yours $200.00
    SIEMENS ED21B090

    SIEMENS

    ED21B090

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 240 VAC, 1 POLE, STANDARD 40 DEGREES C BREAKER, 90 AMP
    $799.00 Buy Surplus As Low As $480.00
    $480.00
    Repair Yours $399.00
    SIEMENS CFD63B080

    SIEMENS

    CFD63B080

    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, 80 AMP
    $18,363.00 Buy Surplus As Low As $11,018.00
    $11,018.00
    Repair Yours $9,145.00
    SIEMENS CMD63B800

    SIEMENS

    CMD63B800

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGHEST IC RATING AND CURRENT LIMITING, TYPE MD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 800 AMP
    ✓ IN STOCK!
    $41,594.00 Buy Surplus As Low As $4,499.00
    $4,499.00
    Repair Yours $3,819.04
    SIEMENS ED21B060L

    SIEMENS

    ED21B060L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 240 VAC, 1 POLE, STANDARD 40 DEGREES C BREAKER, 60 AMP
    $506.00 Buy Surplus As Low As $304.00
    $304.00
    Repair Yours $253.00
    SIEMENS ED22B020L

    SIEMENS

    ED22B020L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 240 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 20 AMP
    ✓ IN STOCK!
    $285.60 Buy Surplus As Low As $271.32
    $271.32
    Repair Yours $200.00
    SIEMENS ED22B060L

    SIEMENS

    ED22B060L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 240 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 60 AMP
    ✓ IN STOCK!
    $292.95 Buy Surplus As Low As $82.71
    $82.71
    Repair Yours $200.00
    SIEMENS ED22B100L

    SIEMENS

    ED22B100L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 240 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 100 AMP
    ✓ IN STOCK!
    $1,865.00 Buy Surplus As Low As $1,205.30
    $1,205.30
    Repair Yours $743.02
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