Refine Results

In Stock

Applied Filters:

Molded Case Circuit Breaker

Subcategory

Molded Case Circuit Breaker

Manufacturers

All

Amperage

All

Voltage

All

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.

SORT BY

Part Number	PRICE	Manufacturer	Amperage	Voltage
QOXD140	Limited Stock From Get Price	Square D	40	240
QOXD145	Limited Stock From Get Price	Square D	45	240
QOXD150	Limited Stock From Get Price	Square D	50	240
QOXD210	Limited Stock From Get Price	Square D	10	415
QOXD2100	Limited Stock From Get Price	Square D	100	415
QOXD225	Limited Stock From Get Price	Square D	25	415
QOXD240	Limited Stock From Get Price	Square D	40	415
QOXD245	Limited Stock From Get Price	Square D	45	415
QOXD250	Limited Stock From Get Price	Square D	50	415
QOXD280	Limited Stock From Get Price	Square D	80	415
QOXD310	Limited Stock From Get Price	Square D	10	415
QOXD325	Limited Stock From Get Price	Square D	25	415
QOXD345	Limited Stock From Get Price	Square D	45	415
QP1-B035	Limited Stock From Get Price	ITE	35	240
QP1-B070	Limited Stock From Get Price	ITE	70	240
QP1-B090	Limited Stock From Get Price	ITE	90	240
QP1-B100	Limited Stock From Get Price	ITE	100	240
QP120AF	Limited Stock From Get Price	ITE	20	240
QP150	Limited Stock From Get Price	Siemens	50	240
QP160	Limited Stock From Get Price	Siemens	60	240
QP1B010	Limited Stock From Get Price	ITE	10	240
QP1B060	Limited Stock From Get Price	ITE	60	240
QP2-B100-B	Limited Stock From Get Price	ITE	100	240
QP2-B200	Limited Stock From Get Price	ITE	200	240

1
...
18,223
18,224
18,225
...
18,485

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.