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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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ET5609
ET5609
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ET8825
ET8825
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ETH-5742
ETH-5742
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ETN-1071
ETN-1071
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FD63F150L
FD63F150L
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HEB1B015V
HEB1B015V
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HFD63F175
HFD63F175
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HJ3-F150
HJ3-F150
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HMX3G600LA4RNXX
HMX3G600LA4RNXX
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JL3-A400
JL3-A400
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LXD68B500
LXD68B500
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MBKED3100A
MBKED3100A
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MM0406L1125ESC
MM0406L1125ESC
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QP390
QP390
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WLL3A3501CXXXXXXXN
WLL3A3501CXXXXXXXN
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3VA4160-5ED24-0AA0
3VA4160-5ED24-0AA0
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3VA4170-5ED24-0AA0
3VA4170-5ED24-0AA0
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3VA5215-6ED36-0AA0
3VA5215-6ED36-0AA0
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3VA6610-6HN32-0AA0
3VA6610-6HN32-0AA0
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1000
3VF1231-1DC11-0AB3
3VF1231-1DC11-0AB3
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3VF1231-1DE11-0AA0
3VF1231-1DE11-0AA0
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3VF1231-1DG11-0AB4
3VF1231-1DG11-0AB4
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3VF1231-1DH11-0AB4
3VF1231-1DH11-0AB4
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3VF1231-1DH11-QAB3
3VF1231-1DH11-QAB3
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Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.