Refine Results

In Stock

Applied Filters:

Molded Case Circuit Breaker

Siemens

Subcategory

Molded Case Circuit Breaker

Manufacturers (1)

Siemens

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
CLJ63B350	Limited Stock From Get Price	Siemens	350	600
HB1B025	Limited Stock From Get Price	Siemens	25	120
HB1B040	Limited Stock From Get Price	Siemens	40	120
HB1B050	Limited Stock From Get Price	Siemens	50	120
HB2B015L	Limited Stock From Get Price	Siemens	15	240
HB2B02000S01	Limited Stock From Get Price	Siemens	20	240
HB2B100L	Limited Stock From Get Price	Siemens	100	240
HB3B01500S07	Limited Stock From Get Price	Siemens	15	240
HB3B01501	Limited Stock From Get Price	Siemens	15	240
HB3B015F	Limited Stock From Get Price	Siemens	15	240
HB3B015M	Limited Stock From Get Price	Siemens	15	240
HB3B015QX	Limited Stock From Get Price	Siemens	15	240
HB3B015Y	Limited Stock From Get Price	Siemens	15	240
HB3B02000S07	Limited Stock From Get Price	Siemens	20	240
HB3B02001	Limited Stock From Get Price	Siemens	20	240
HB3B020F	Limited Stock From Get Price	Siemens	20	240
HB3B020M	Limited Stock From Get Price	Siemens	20	240
HB3B020QX	Limited Stock From Get Price	Siemens	20	240
HB3B020Y	Limited Stock From Get Price	Siemens	20	240
HB3B02500S01	Limited Stock From Get Price	Siemens	25	240
HB3B02500S07	Limited Stock From Get Price	Siemens	25	240
HB3B02501	Limited Stock From Get Price	Siemens	25	240
HB3B025F	Limited Stock From Get Price	Siemens	25	240
HB3B025L	Limited Stock From Get Price	Siemens	25	240

1
...
810
811
812
...
1,176

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.