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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
MBKJD3300	Limited Stock From Get Price	Siemens	300	600
MBKQJ1125H	Limited Stock From Get Price	Siemens	125	240
MBKQJ1150H	Limited Stock From Get Price	Siemens	150	240
MBKQJ1175	Limited Stock From Get Price	Siemens	175	240
MBKQJ1175H	Limited Stock From Get Price	Siemens	175	240
MBKQJ1200H	Limited Stock From Get Price	Siemens	200	240
MBKQJ1225H	Limited Stock From Get Price	Siemens	225	240
MBKQJ3125H	Limited Stock From Get Price	Siemens	125	240
MBKQJ3175H	Limited Stock From Get Price	Siemens	175	240
NGB1B045	Limited Stock From Get Price	Siemens	45	347
NJX3B400L	Limited Stock From Get Price	Siemens	400	600
Q11501	Limited Stock From Get Price	Siemens	15	120
Q115AFH	Limited Stock From Get Price	Siemens	15	240
Q12001	Limited Stock From Get Price	Siemens	20	120
Q12500S01	Limited Stock From Get Price	Siemens	25	120
Q14000S01	Limited Stock From Get Price	Siemens	40	120
Q15000S01	Limited Stock From Get Price	Siemens	50	120
Q16000S01	Limited Stock From Get Price	Siemens	60	120
Q17000S01	Limited Stock From Get Price	Siemens	70	120
Q210001	Limited Stock From Get Price	Siemens	100	240
Q212500S01	Limited Stock From Get Price	Siemens	125	240
Q21501	Limited Stock From Get Price	Siemens	15	240
Q21545CT	Limited Stock From Get Price	Siemens	45	240
Q215R	Limited Stock From Get Price	Siemens	15	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.