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
QPH3100	Limited Stock From Get Price	Square D	100	120
QPHGF1040	Limited Stock From Get Price	Cutler Hammer	40	120
QPHW2015S	Limited Stock From Get Price	Cutler Hammer	15	240
QPHW2025S	Limited Stock From Get Price	Cutler Hammer	25	240
QPHW2030S	Limited Stock From Get Price	Cutler Hammer	30	240
QPHW2035	Limited Stock From Get Price	Cutler Hammer	35	240
QPHW2035H	Limited Stock From Get Price	Cutler Hammer	35	240
QPHW2035S	Limited Stock From Get Price	Cutler Hammer	35	240
QPHW2040S	Limited Stock From Get Price	Cutler Hammer	40	240
QPHW2045	Limited Stock From Get Price	Cutler Hammer	45	240
QPHW2045H	Limited Stock From Get Price	Cutler Hammer	45	240
QPHW2045S	Limited Stock From Get Price	Cutler Hammer	45	240
QPHW2050S	Limited Stock From Get Price	Cutler Hammer	50	240
QPHW2055	Limited Stock From Get Price	Cutler Hammer	55	240
QPHW2055H	Limited Stock From Get Price	Cutler Hammer	55	240
QPHW2055S	Limited Stock From Get Price	Cutler Hammer	55	240
QPHW2060S	Limited Stock From Get Price	Cutler Hammer	60	240
QPHW2070S	Limited Stock From Get Price	Cutler Hammer	70	240
QPHW2080S	Limited Stock From Get Price	Cutler Hammer	80	240
QPHW2090S	Limited Stock From Get Price	Cutler Hammer	90	240
QPHW2100S	Limited Stock From Get Price	Cutler Hammer	100	240
QPHW2110S	Limited Stock From Get Price	Cutler Hammer	110	240
QPHW2125S	Limited Stock From Get Price	Cutler Hammer	125	240
R38AL-1515	Limited Stock From Get Price	Zinsco	15	240

1
...
18,225
18,226
18,227
...
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.