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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
QJ3B110L	In Stock From $269^.11	Siemens	110	240
QJ3B12500S01	In Stock From $705^.86	Siemens	125	240
QJ3B125A01	In Stock From $705^.86	Siemens	125	240
QJ3B125A02	In Stock From $550^.46	Siemens	125	240
QJ3B125L	In Stock From $705^.86	Siemens	125	240
QJ3B15000S01	In Stock From $669^.50	Siemens	150	240
QJ3B150A01	In Stock From $669^.50	Siemens	150	240
QJ3B150A02	In Stock From $549^.49	Siemens	150	240
QJ3B150L	In Stock From $242^.71	Siemens	150	240
QJ3B17500S01	In Stock From $435^.00	Siemens	175	240
QJ3B175A01	In Stock From $432^.69	Siemens	175	240
QJ3B175A02	In Stock From $534^.34	Siemens	175	240
QJ3B175L	In Stock From $207^.05	Siemens	175	240
QJ3B20000S01	In Stock From $790^.08	Siemens	200	240
QJ3B200A01	In Stock From $790^.08	Siemens	200	240
QJ3B200A02	In Stock From $790^.08	Siemens	200	240
QJ3B200L	In Stock From $314^.43	Siemens	200	240
QJ3B22500S01	In Stock From $236^.04	Siemens	225	240
QJ3B225A01	In Stock From $436^.76	Siemens	225	240
QJ3B225L	In Stock From $526^.32	Siemens	225	240
QJ3M060	In Stock From $345^.17	Siemens	60	240
QJ3M060L	In Stock From $345^.17	Siemens	60	240
QJ3M070	In Stock From $288^.32	Siemens	70	240
QJ3M080	In Stock From $321^.37	Siemens	80	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.