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Molded Case Circuit Breaker

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Molded Case Circuit Breaker

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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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Part Number	PRICE	Manufacturer	Amperage	Voltage
MJA36700	In Stock From $5,145^.96	Square D	700	600
MJA36800	In Stock From $6,160^.73	Square D	800	600
MJL36450	In Stock From $5,035^.12	Square D	450	600
MJL36500	In Stock From $4,347^.32	Square D	500	600
MJL36800	In Stock From $4,936^.43	Schneider Electric	800	600
PJA36080U44A	In Stock From $7,300^.97	Schneider Electric	800	600
PJA36100U44A	In Stock From $10,701^.50	Square D	1000	600
QO115PCAFI	In Stock From $70^.12	Square D	15	120
QO120PCAFI	In Stock From $50^.66	Square D	20	120
QO330	In Stock From $40^.21	Square D	30	240
QO340	In Stock From $53^.74	Square D	40	240
QO350	In Stock From $82^.14	Square D	50	240
QO380	In Stock From $107^.05	Square D	80	240
HOM120	In Stock From $19^.99	Square D	20	120
HOM120CAFIC	In Stock From $58^.51	Square D	20	120
HOM120DF	In Stock From $61^.30	Square D	20	120
HOM120GFI	In Stock From $87^.44	Square D	20	120
HOM120PDF	In Stock From $55^.06	Schneider Electric	20	120
MJA36800E10	In Stock From $6,089^.24	Square D	800	600
MJL36800E10	In Stock From $8,612^.02	Schneider Electric	800	600
QBA32100	In Stock From $603^.72	Square D	100	240
QBA32125	In Stock From $411^.41	Square D	125	240
QBA32175	In Stock From $520^.69	Square D	175	240
QBA32200	In Stock From $824^.66	Square D	200	240

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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.