Product Search

    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.

    Filter Results
    Results 401-450 of 449.
    SIEMENS BQ2B040H

    SIEMENS

    BQ2B040H

    CIRCUIT BREAKER, BQ SERIES, TYPE BQH, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, 2 POLE, 1 PHASE, 40 AMP, 240 VAC
    ✓ IN STOCK!
    $92.40 Buy Surplus As Low As $87.78
    $87.78
    Repair Yours $200.00
    SIEMENS CFD63B200

    SIEMENS

    ITE SIEMENS

    CFD63B200

    CIRCUIT BREAKER, 200AMP, 3POLE, 600V, 100KA NL FD
    ✓ IN STOCK!
    $18,363.00 Buy Surplus As Low As $11,018.00
    $11,018.00
    Repair Yours $9,145.00
    SIEMENS CJT3B250

    SIEMENS

    CJT3B250

    BREAKER, 3P, 250A, J-FR, TM TU, VL TM TRIP UNITS
    $6,157.00 Buy Surplus As Low As $3,695.00
    $3,695.00
    Repair Yours $3,067.00
    SIEMENS CPD63B160

    SIEMENS

    ITE SIEMENS

    CPD63B160

    CPD63B160 CIRCUIT BREAKER, 160A, CPD, CIRCUIT BREAKER, 600V, 160 AMP
    $62,909.00 Buy Surplus As Low As $37,746.00
    $37,746.00
    Repair Yours $31,330.00
    SIEMENS CQDST120AAS

    SIEMENS

    ITE SIEMENS

    CQDST120AAS

    BREAKER, SHUT TRIP W/ AUXILIARY SWITCH COMBINATION , 120 VAC, SHUT DATA 0.90 AMP 120 VAC 60 HZ
    ✓ IN STOCK!
    $777.00 Buy Surplus As Low As $738.15
    $738.15
    Repair Yours $386.95
    SIEMENS CQDST48

    SIEMENS

    CQDST48

    BREAKER CQD 48VDC SHUNT TRP, CIRCUIT BREAKER PANELB & SWB ACCESSORY
    $1,794.00 Buy Surplus As Low As $1,077.00
    $1,077.00
    Repair Yours $894.00
    SIEMENS CRHOEVD

    SIEMENS

    CRHOEVD

    OPERATING HANDLE, ROTARY DOOR MOUNTED, VARIABLE DEPTH, CIRCUIT BREAKER ACCESSORY, FOR 3-POLE ED FRAME BREAKERS, NEMA 1 / 3 / 3R / 4 / 4X ENCLOSURES
    ✓ IN STOCK!
    $447.00 Buy Surplus As Low As $341.00
    $341.00
    SIEMENS CRHOFSD

    SIEMENS

    CRHOFSD

    BREAKERR FD ROTARY HANDLE STD DEPTH, OEM ACCESSORIES
    $357.00 Buy Surplus As Low As $214.20
    $214.20
    Repair Yours $200.00
    SIEMENS ED42B045

    SIEMENS

    ED42B045

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE ED, 480 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 45 AMP
    ✓ IN STOCK!
    $1,727.00 Buy Surplus As Low As $1,037.00
    $1,037.00
    Repair Yours $861.00
    SIEMENS ED42B050

    SIEMENS

    ITE SIEMENS

    ED42B050

    MOLDED CASE CIRCUIT BREAKER, TYPE ED4, BLUE LABEL, 50 AMP, 2 POLE, 480 VAC, 250 VDC, WITH LOAD SIDE LUGS
    ✓ IN STOCK!
    $1,727.00 Buy Surplus As Low As $1,037.00
    $1,037.00
    Repair Yours $861.00
    SIEMENS ED42S125ALAC

    SIEMENS

    ED42S125ALAC

    ED STD INTER TM BREAKER, MCSW ED4 125A 2P LUGS AUX C
    $4,956.00 Buy Surplus As Low As $2,974.00
    $2,974.00
    Repair Yours $2,469.00
    SIEMENS HDG3F150

    SIEMENS

    HDG3F150

    BREAKER VL 3P 150A 480V 65KA FR
    $2,283.00 Buy Surplus As Low As $1,370.00
    $1,370.00
    Repair Yours $1,138.00
    SIEMENS HJD63B225

    SIEMENS

    HJD63B225

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGH IC RATING, TYPE JD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 225 AMP
    $3,622.50 Buy Surplus As Low As $2,173.50
    $2,173.50
    Repair Yours $1,804.01
    SIEMENS JMKT400T

    SIEMENS

    JMKT400T

    BREAKER MINING 400A 1KV 14KA TM TU
    $1,333.00 Buy Surplus As Low As $800.00
    $800.00
    Repair Yours $664.00
    SIEMENS JXD62B300

    SIEMENS

    JXD62B300

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE JD, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 300 AMP
    $2,062.00 Buy Surplus As Low As $1,238.00
    $1,238.00
    Repair Yours $1,028.00
    SIEMENS FXD63B110

    SIEMENS

    FXD63B110

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE FD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 110 AMP
    ✓ IN STOCK!
    $870.00 Buy Surplus As Low As $522.00
    $522.00
    Repair Yours $434.00
    SIEMENS HB1B020

    SIEMENS

    HB1B020

    CIRCUIT BREAKER, BQ SERIES, TYPE HBQ, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, 1 POLE, 1 PHASE, 20 AMP, 120 VAC
    ✓ IN STOCK!
    $268.00 Buy Surplus As Low As $161.00
    $161.00
    Repair Yours $200.00
    SIEMENS HB2B015

    SIEMENS

    HB2B015

    2-POLE 15-60A 65K, BREAKER HBQ 2P 120/240V 15A 65K
    $644.00 Buy Surplus As Low As $387.00
    $387.00
    Repair Yours $322.00
    SIEMENS HB2B040

    SIEMENS

    HB2B040

    2-POLE 15-60A 65K, BREAKER HBQ 2P 120/240V 40A 65K
    $644.00 Buy Surplus As Low As $387.00
    $387.00
    Repair Yours $322.00
    SIEMENS HB2B060

    SIEMENS

    HB2B060

    CIRCUIT BREAKER, BQ SERIES, TYPE HBQ, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, 2 POLE, 1 PHASE, 60 AMP, 120/240 VAC
    $784.00 Buy Surplus As Low As $271.80
    $271.80
    Repair Yours $200.00
    SIEMENS HB3B015

    SIEMENS

    HB3B015

    3-POLE 65K AIC, BREAKER HBQ 3P 240V 15A 65K
    ✓ IN STOCK!
    $1,115.00 Buy Surplus As Low As $669.00
    $669.00
    Repair Yours $556.00
    SIEMENS HB3B020

    SIEMENS

    HB3B020

    CIRCUIT BREAKER, BQ SERIES, TYPE HBQ, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 20 AMP, 240 VAC
    ✓ IN STOCK!
    $1,115.00 Buy Surplus As Low As $386.70
    $386.70
    Repair Yours $290.00
    SIEMENS HB3B030

    SIEMENS

    ITE SIEMENS

    HB3B030

    MOLDED CASE CIRCUIT BREAKER, TYPE HBQ, 3 POLE, 240 VAC, 30 AMP, BOLT-ON
    ✓ IN STOCK!
    $1,115.00 Buy Surplus As Low As $669.00
    $669.00
    Repair Yours $556.00
    SIEMENS HB3B070

    SIEMENS

    HB3B070

    CIRCUIT BREAKER, BQ SERIES, TYPE HBQ, THERMAL MAGNETIC, HIGH INTERRUPTING CAPACITY, 3 POLE, 3 PHASE, 70 AMP, 240 VAC
    $1,444.00 Buy Surplus As Low As $500.40
    $500.40
    Repair Yours $290.00
    SIEMENS HB3B080

    SIEMENS

    HB3B080

    3-POLE 65K AIC, BREAKER HBQ 3P 240V 80A 65K
    $1,696.00 Buy Surplus As Low As $1,018.00
    $1,018.00
    Repair Yours $845.00
    SIEMENS HB3B090

    SIEMENS

    HB3B090

    CIRCUIT BREAKER, HBQ, 3 POLE, 240 VOLTS, 90 AMPS, 65K
    ✓ IN STOCK!
    $1,696.00 Buy Surplus As Low As $1,018.00
    $1,018.00
    Repair Yours $845.00
    SIEMENS HHED63B020L

    SIEMENS

    HHED63B020L

    CIRCUIT BREAKER, MOLDED CASE, 20AMP, 600V, 3-POLE, FEED THRU MOUNT
    ✓ IN STOCK!
    $1,295.70 Buy Surplus As Low As $1,230.92
    $1,230.92
    Repair Yours $645.26
    SIEMENS HHED63B035L

    SIEMENS

    HHED63B035L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 35 AMP
    $1,295.70 Buy Surplus As Low As $777.42
    $777.42
    Repair Yours $645.26
    SIEMENS HHED63B040L

    SIEMENS

    HHED63B040L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 40 AMP
    ✓ IN STOCK!
    $911.00 Buy Surplus As Low As $602.00
    $602.00
    Repair Yours $455.00
    SIEMENS HHED63B050L

    SIEMENS

    HHED63B050L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 50 AMP
    $1,568.70 Buy Surplus As Low As $941.22
    $941.22
    Repair Yours $781.21
    SIEMENS HHED63B060

    SIEMENS

    ITE SIEMENS

    HHED63B060

    DISCONTINUED BY MANUFACTURER, CIRCUIT BREAKER, TYPE ED, 18KA, 60AMP, 3POLE, 600VAC, LD LUG
    ✓ IN STOCK!
    Buy Surplus As Low As $1,400.00
    $1,400.00
    Repair Yours $1,162.00
    SIEMENS HHFXD63B250

    SIEMENS

    HHFXD63B250

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE FD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 250 AMP
    ✓ IN STOCK!
    $2,318.00 Buy Surplus As Low As $1,391.00
    $1,391.00
    Repair Yours $1,155.00
    SIEMENS JD62B300

    SIEMENS

    JD62B300

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE JD, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 300 AMP
    $9,562.00 Buy Surplus As Low As $1,190.00
    $1,190.00
    Repair Yours $790.00
    SIEMENS JD63W400

    SIEMENS

    JD63W400

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE JD, 600 VAC, 3 POLE, 50 DEGREES C TRIP UNIT, 400 AMP
    ✓ IN STOCK!
    $6,960.00 Buy Surplus As Low As $4,496.50
    $4,496.50
    Repair Yours $2,772.86
    SIEMENS HFD63B090

    SIEMENS

    HFD63B090

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGH IC RATING, TYPE FD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 90 AMP
    $1,589.00 Buy Surplus As Low As $954.00
    $954.00
    Repair Yours $792.00
    SIEMENS HHED62B025L

    SIEMENS

    HHED62B025L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 25 AMP
    $588.00 Buy Surplus As Low As $352.80
    $352.80
    Repair Yours $292.82
    SIEMENS HHED62B050L

    SIEMENS

    HHED62B050L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 50 AMP
    $589.00 Buy Surplus As Low As $354.00
    $354.00
    Repair Yours $294.00
    SIEMENS HHED62B060

    SIEMENS

    ITE SIEMENS

    HHED62B060

    CIRCUIT BREAKER, TYPE HHED, SENTRON SERIES, EXTRA HIGH INTERRUPTING CAPACITY, 2 POLE, 1 PHASE, 60 AMP, 600 VAC
    ✓ IN STOCK!
    $495.00 Buy Surplus As Low As $420.75
    $420.75
    Repair Yours $247.00
    SIEMENS HHED62B060L

    SIEMENS

    HHED62B060L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 60 AMP
    $588.00 Buy Surplus As Low As $352.80
    $352.80
    Repair Yours $292.82
    SIEMENS HHED62B090L

    SIEMENS

    HHED62B090L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, EXTRA HIGH IC RATING, TYPE ED, 600 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 90 AMP
    $602.00 Buy Surplus As Low As $362.00
    $362.00
    Repair Yours $301.00
    SIEMENS HHED62B100

    SIEMENS

    ITE SIEMENS

    HHED62B100

    BREAKER, ED 2P 100A 600V 18KA LD LUG
    ✓ IN STOCK!
    $1,035.00 Buy Surplus As Low As $684.00
    $684.00
    Repair Yours $516.00
    SIEMENS HNXD63B100H

    SIEMENS

    HNXD63B100H

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGH IC RATING, TYPE ND, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 100 AMP , 100 PERCENT RATED
    $48,592.00 Buy Surplus As Low As $29,156.00
    $29,156.00
    Repair Yours $24,200.00
    SIEMENS LD63B500

    SIEMENS

    LD63B500

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, STANDARD RATING, TYPE LD, 600 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 500 AMP
    ✓ IN STOCK!
    $18,166.00 Buy Surplus As Low As $10,900.00
    $10,900.00
    Repair Yours $9,047.00
    SIEMENS FDFBER

    SIEMENS

    FDFBER

    HANDLE, CIRCUIT BREAKER ACCESSORY, ED 1/3R/12 FX DEP FLANGE, RIGHT
    $604.00 Buy Surplus As Low As $363.00
    $363.00
    SIEMENS HED42B050L

    SIEMENS

    HED42B050L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGH IC RATING, TYPE ED, 480 VAC, 2 POLE, STANDARD 40 DEGREES C BREAKER, 50 AMP
    ✓ IN STOCK!
    $230.00 Buy Surplus As Low As $152.00
    $152.00
    Repair Yours $200.00
    SIEMENS HED43B030L

    SIEMENS

    ITE SIEMENS

    HED43B030L

    CIRCUIT BREAKER, SENTRON, TYPE HED, ED FRAME, 3 PHASE, 3 POLE, 480V, 30 AMP, 42KA @ 480V, FEED-THRU, THERMAL MAGNETIC
    ✓ IN STOCK!
    $558.00 Buy Surplus As Low As $335.00
    $335.00
    Repair Yours $279.00
    SIEMENS HED43B050L

    SIEMENS

    ITE SIEMENS

    HED43B050L

    CIRCUIT BREAKER, HED4, 3P, 480V, 50A, LUG,
    ✓ IN STOCK!
    $892.50 Buy Surplus As Low As $758.63
    $758.63
    Repair Yours $444.47
    SIEMENS HED43B080L

    SIEMENS

    HED43B080L

    LUGS MOLDED CASE BREAKER, HED, 3POLE, 80A, 480V, 42KA, HIGH INTERRUPT, THERMAL-MAGNETIC TRIP UNIT, LINE/LOAD LUGS, 15-125 AMP FRAME, DIMENSIONS (W X H X D) IN: 3 X 6.35 X 3.92.
    ✓ IN STOCK!
    $945.00 Buy Surplus As Low As $897.75
    $897.75
    Repair Yours $470.61
    SIEMENS HED43B090L

    SIEMENS

    HED43B090L

    MOLDED CASE CIRCUIT BREAKER, SENTRON SERIES, THERMAL MAHNETIC, HIGH IC RATING, TYPE ED, 480 VAC, 3 POLE, STANDARD 40 DEGREES C BREAKER, 90 AMP
    ✓ IN STOCK!
    $945.00 Buy Surplus As Low As $803.25
    $803.25
    Repair Yours $470.61
    Previous
    1 2 3 4 5 6 7 8 9