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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
QL2430300	Limited Stock From Get Price	Zinsco	300	240
QL2430350	Limited Stock From Get Price	Zinsco	350	240
QL2430400	Limited Stock From Get Price	Zinsco	400	240
QL2430500	Limited Stock From Get Price	Zinsco	500	240
QL2430600	Limited Stock From Get Price	Zinsco	600	240
R3870	Limited Stock From Get Price	Zinsco	70	240
RC3835	Limited Stock From Get Price	Zinsco	35	240
RC3845	Limited Stock From Get Price	Zinsco	45	240
HQB243070	Limited Stock From Get Price	Zinsco	70	240
HQB243100	Limited Stock From Get Price	Zinsco	100	240
Q2430-50	Limited Stock From Get Price	Zinsco	50	240
UBIZ4040	Limited Stock From Get Price	Connecticut Electric	40	240
VPKUBIZ0225	Limited Stock From Get Price	Zinsco	25	240
VPKUBIZ0230	Limited Stock From Get Price	Connecticut Electric	30	240
VPKUBIZ0240	Limited Stock From Get Price	Connecticut Electric	40	240
VPKUBIZ0250	Limited Stock From Get Price	Connecticut Electric	50	240
VPKUBIZ0260	Limited Stock From Get Price	Connecticut Electric	60	240
VPKUBIZ15	Limited Stock From Get Price	Zinsco	15	240
VPKUBIZ1515	Limited Stock From Get Price	Connecticut Electric	15	240
VPKUBIZ20	Limited Stock From Get Price	Connecticut Electric	20	240
VPKUBIZ2020	Limited Stock From Get Price	Zinsco	20	240
VPKUBIZ2100	Limited Stock From Get Price	Zinsco	100	240
VPKUBIZ220	Limited Stock From Get Price	Zinsco	20	240
VPKUBIZ230	Limited Stock From Get Price	Connecticut Electric	30	240

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.