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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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S261-B20
S261-B20
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ABB
S261-D4
S261-D4
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ABB
S272-B40
S272-B40
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ABB
S402UK50
S402UK50
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ABB
192A7029P29
192A7029P29
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General Electric
2CDS271337R0404
2CDS271337R0404
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ABB
ESB23060L
ESB23060L
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ABB
GB10963
GB10963
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ABB
S101-L-20-A
S101-L-20-A
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ABB
S2-NT
S2-NT
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ABB
S202K16A
S202K16A
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ABB
S203P-Z6A
S203P-Z6A
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ABB
S203PR-K63
S203PR-K63
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ABB
S223-K6A
S223-K6A
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ABB
THEF134C5100
THEF134C5100
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ABB
THJ4S
THJ4S
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ABB
THQB2150GFEP2
THQB2150GFEP2
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General Electric
THQBC1DAAMAXXXX
THQBC1DAAMAXXXX
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General Electric
THQBCAQAAPAXXXX
THQBCAQAAPAXXXX
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General Electric
TJK436400M2
TJK436400M2
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ABB
TM3215C64K
TM3215C64K
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General Electric
TM3215R64K
TM3215R64K
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General Electric
UXAB 479215-R-912
UXAB 479215-R-912
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ABB
XT4HU31501YJ000XXX
XT4HU31501YJ000XXX
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ABB
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.