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Siemens Insulated Case and Molded Case Circuit Breakers

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1 - 50 of 415 listings

1/2000 amps, Siemens, NGB, HGB, LGB, 3VA type

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: NGB

2-800 Amps, Siemens, NMX3B800, 600 Volts, molded case, new

Five Star Circuit Breaker | Harbor City, CA
Seller: Five Star Circuit Breaker
Location: Harbor City, CA
Mfr: Siemens
Model: NMX3B800

15-100 Amp, Siemens, BQD type, BQD3015 - 100 Amp, 3 Pole, 15-100 Amp, 480Y/277 Volts, 14kAIC

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: BQD TYPE

15-125 Amp, Siemens, Sentron Series, G frame, HGB3B015B, 15 Amp thru 125 Amp, 35kA @ 480/277 Volts, 3 phase

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: SENTRON SERIES

15 Amps, Siemens, HHED63B015 NTO, 3P 277/480 VAC 65K new take out

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: HHED63B015 NTO

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Insulated Case and Molded Case Circuit Breakers (also known as MCCBs or compact circuit breakers) are protective devices designed to interrupt electrical flow during overcurrent or short circuit conditions. Insulated case breakers are typically larger and used in industrial settings, while molded case breakers are compact and widely used in residential, commercial, and industrial applications. Both types offer reliable circuit protection, ease of installation, and durability for various electrical systems.

15-125 Amp, Siemens, Sentron Series, G frame, LGB3B015B, 15 Amp thru 125 Amp, 65kA @ 480/277 Volts, 3 phase

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: SENTRON SERIES

15-125 Amp, Siemens, Sentron Series, G frame, NGB3B015B, 15 Amp thru 125 Amp, 25kA @ 480/277 Volts, 3 phase

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: SENTRON SERIES

20 Amps, Siemens, 3VA4, Bolt-On Circuit Breaker, 3VA4120-6ED34-0AA0, 600 V, 3 Pole, 3 phase

OK Sales Inc | Burlington, NC
Seller: OK Sales Inc
Location: Burlington, NC
Mfr: Siemens
Model: 3VA4
Siemens 3VA4120-6ED34-0AA0 Bolt-On Circuit Breaker 20A 600V 3P 3PH 3VA4 20 AMP, Condition Notes: NO BOX., New old stock. May show signs of shelf wear from storage. Industrial surplus. Item pictured is the exact item you will receive., Most items ship same day or next day of payment received from North Carolina., UPS ...more

20 Amps, Siemens, ED63B020, 3P 600 Volts circuit breaker, new out of box

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: ED63B020

30 Amps, Siemens, CED63B030, 3P 600 Volts circuit breaker

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: CED63B030

40 Amps, Siemens, HHED63B040 Sentron Series breaker 3P 600 Volts, out of box

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: HHED63B040 SENTRON SERIES BREAKER 3P 600 V.

40 Amps, Siemens, NEB3B040B, New out of Box, #1347817

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: NEB3B040B
Siemens Circuit Breaker, Molded Case type, Catalog Number NEB3B040B, 40 amp frame current, 480 volts.

70 Amps, Siemens, HFD63B070, #1328834

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HFD63B070

90 Amps, Siemens, EH3B090, #1383011

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: EH3B090

90 Amps, Siemens, HE3B090, 600 Volts, #1032661

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HE3B090
Siemens Circuit Breaker, Molded Case type, Catalog Number HE3B090, 90 amp frame current, 600 volts.

100 Amps, Siemens, 45-100A, manually operated, Fixed, #MC5193

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: 45100A
Siemens Circuit Breaker, Molded Case type, Catalog Number ED43B100, 100 amp frame current, 480 volts, Manual operation, Fixed mounting.

100 Amps, Siemens, CFD63B100, #1365023

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CFD63B100
Siemens Circuit Breaker, Molded Case type, Catalog Number CFD63B100, 100 amp frame current, 600 volts.

100 Amps, Siemens, HFD62B100, #932441

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HFD62B100
Siemens Circuit Breaker, Molded Case type, Catalog Number HFD62B100, 100 amp frame current, 600 volts.

100 Amps, Siemens, HHFD63B100, #1397805

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HHFD63B100

100 Amps, Siemens, ND63B100, #1290683

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: ND63B100
Siemens Circuit Breaker, Molded Case type, Catalog Number ND63B100, 100 amp frame current, 600 volts.

100 Amps, Siemens, V7E, QMD series, QMR, Spectra ADS

Volunteer Equipment & Supply | Knoxville, TN
Seller: Volunteer Equipment & Supply
Location: Knoxville, TN
Mfr: Siemens
Model: V7E

120 Amps, Siemens, ND63B120, 600 Volts, #1101622

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: ND63B120
Siemens Circuit Breaker, Molded Case type, Catalog Number ND63F120, 1200 amp frame current, 600 volts.

120 Amps, Siemens, ND63B120, New out of Box, #1340713

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: ND63B120
Siemens Circuit Breaker, Molded Case type, Catalog Number ND63B120, 120 amp frame current, 600 volts.

120 Amps, Siemens, ND63B120, #1349515

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: ND63B120
Siemens Circuit Breaker, Molded Case type, Catalog Number ND63B120, 120 amp frame current, 600 volts.

125 Amps, Siemens, CED63B125, New out of Box, #1347816

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CED63B125
Siemens Circuit Breaker, Molded Case type, Catalog Number CED63B125, 125 amp frame current, 600 volts.

125 Amps, Siemens, CED63B125, #1370060

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CED63B125
Siemens Circuit Breaker, Molded Case type, Catalog Number CED63B125, 125 amp frame current, 600 volts.

125 Amps, Siemens, CJ3B125, #596633

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CJ3B125
Siemens Circuit Breaker, Molded Case type, Catalog Number CJ3B125, 125 amp frame current, 600 volts.

125 Amps, Siemens, ED63B125, breaker ED 3P 125A 600V 18KA LD LUG

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: ED63B125

125 Amps, Siemens, EH3B125, #1409263

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: EH3B125

125 Amps, Siemens, ET5913, 600 Volts, #1265497

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: ET5913
Siemens Circuit Breaker, Molded Case type, Catalog Number ET5913, 125 amp frame current, 600 volts.

125 Amps, Siemens, HFD63B125, #1365016

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HFD63B125
Siemens Circuit Breaker, Molded Case type, Catalog Number HFD63B125, 125 amp frame current, 600 volts.

125 Amps, Siemens, HFD63B125, #1349502

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HFD63B125
Siemens Circuit Breaker, Molded Case type, Catalog Number HFD63B125, 125 amp frame current, 600 volts.

125 Amps, Siemens, HHED63B125, #1333028

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HHED63B125
Siemens Circuit Breaker, Molded Case type, Catalog Number HHED63B125, 125 amp frame current, 600 volts.

125 Amps, Siemens, HHED63B125, #1409851

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HHED63B125

125 Amps, Siemens, NGB3B125, G frame, NGB frame, 125 amp, 3 pole, 25kA @ 480 Volts, 600 Volts

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: NGB3B125

150 Amps, Siemens, CJ3B150, #701276

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CJ3B150
Siemens Circuit Breaker, Molded Case type, Catalog Number CJ3B150, 150 amp frame current, 600 volts.

150 Amps, Siemens, CJ3B150, #1293639

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CJ3B150
Siemens Circuit Breaker, Molded Case type, Catalog Number CJ3B150, 150 amp frame current, 600 volts.

150 Amps, Siemens, FD62B150, 2P 600 Volts 22 KA Sentron Series w/LUGS

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: FD62B150

150 Amps, Siemens, FXD62B150, 2P, 600 VAC

Relectric Supply Co. | San Jose, CA
Seller: Relectric Supply Co.
Location: San Jose, CA
Mfr: Siemens
Model: FXD62B150

150 Amps, Siemens, FXD63A150L, breaker FD 3P 600 V 22 KA ETI LUGS

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: FXD63A150L

150 Amps, Siemens Sentron Series, FXD63B150, Type FXD, FD frame, 3 phase, 35kA @ 480 Volts, 600 Volts

Denver Breaker & Supply | Denver, CO
Seller: Denver Breaker & Supply
Location: Denver, CO
Mfr: Siemens
Model: FXD63B150

150 Amps, Siemens, HFXD63B150, #859059

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HFXD63B150
Siemens Circuit Breaker, Molded Case type, Catalog Number HFXD63B150, 150 amp frame current, 600 volts.

150 Amps, Siemens Sentron, HHED63B015, 3P, 277/480 VAC, new

Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Siemens
Model: HHED63B015

150 Amps, Siemens, HJ3B150, #678443

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HJ3B150
Siemens Circuit Breaker, Molded Case type, Catalog Number HJ3B150, 150 amp frame current, 600 volts.

150 Amps, Siemens, HJKL3B150, #021225

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HJKL3B150
Siemens Circuit Breaker, Molded Case type, Catalog Number HJKL3B150, 150 amp frame current, 600 volts.

150 Amps, Siemens, JL3B150, #1277070

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: JL3B150
Siemens Circuit Breaker, Molded Case type, Catalog Number JL3B150, 150 amp frame current, 600 volts.

175 Amps, Siemens, CJ3B175, #701281

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CJ3B175
Siemens Circuit Breaker, Molded Case type, Catalog Number CJ3B175, 175 amp frame current, 600 volts.

175 Amps, Siemens, CJKL3B175, #019911

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CJKL3B175
Siemens Circuit Breaker, Molded Case type, Catalog Number CJKL3B175, 175 amp frame current, 600 volts.

175 Amps, Siemens, CJKL3F000, #455755

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: CJKL3F000
Siemens Circuit Breaker, Molded Case type, Catalog Number CJKL3F000, 175 amp frame current, 600 volts.

175 Amps, Siemens, HFD63B175, #1404614

RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Siemens
Model: HFD63B175