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
QCR2050P	Limited Stock From Get Price	Cutler Hammer	50	240
QFB24150-2	Limited Stock From Get Price	Challenger	150	240
QFB24175-2	Limited Stock From Get Price	Zinsco	175	240
QHCX2035	Limited Stock From Get Price	Cutler Hammer	35	240
QHCX2045	Limited Stock From Get Price	Cutler Hammer	45	240
QHCX2055	Limited Stock From Get Price	Cutler Hammer	55	240
QNPL2070	Limited Stock From Get Price	Westinghouse	70	240
QNPL2080	Limited Stock From Get Price	Westinghouse	80	240
QNPL2090	Limited Stock From Get Price	Westinghouse	90	240
QOB110PL	Limited Stock From Get Price	Square D	10	120
QOB3110VH1021	Limited Stock From Get Price	Square D	110	240
QOU11001021	Limited Stock From Get Price	Square D	100	120
QOU1901021	Limited Stock From Get Price	Square D	90	120
RGH320039EC	Limited Stock From Get Price	Eaton	2000	-
S-91-NA-C20	Limited Stock From Get Price	ABB	-	-
S201-B10NA	Limited Stock From Get Price	ABB	10	277
S201-K50NA	Limited Stock From Get Price	ABB	50	277
S201L-C16NA	Limited Stock From Get Price	ABB	-	-
S202M-D1	Limited Stock From Get Price	ABB	-	-
S804PV-SP63	Limited Stock From Get Price	ABB	-	-
SHJD6B600LSI	Limited Stock From Get Price	Siemens	600	600
SPECIAL542	Limited Stock From Get Price	Eaton	-	-
SPHM3RM07R5	Limited Stock From Get Price	Eaton	-	-
SPHM3YL0030	Limited Stock From Get Price	Eaton	-	-

1
...
16,818
16,819
16,820
...
18,484

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.