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
QJH23M080L	Limited Stock From Get Price	Siemens	80	240
QJH23M090	Limited Stock From Get Price	Siemens	90	240
QJH23M090L	Limited Stock From Get Price	Siemens	90	240
QJH23M100	Limited Stock From Get Price	Siemens	100	240
QJH23M100L	Limited Stock From Get Price	Siemens	100	240
QJH23M110	Limited Stock From Get Price	Siemens	110	240
QJH23M110L	Limited Stock From Get Price	Siemens	110	240
QJH23M125	Limited Stock From Get Price	Siemens	125	240
QJH23M125L	Limited Stock From Get Price	Siemens	125	240
QJH23M150L	Limited Stock From Get Price	Siemens	150	240
QJH23M175	Limited Stock From Get Price	Siemens	175	240
QJH23M175L	Limited Stock From Get Price	Siemens	175	240
QJH23M200	Limited Stock From Get Price	Siemens	200	240
QJH23M200L	Limited Stock From Get Price	Siemens	200	240
QJH23M225	Limited Stock From Get Price	Siemens	225	240
QJH23M225L	Limited Stock From Get Price	Siemens	225	240
QT3015	Limited Stock From Get Price	Siemens	30	240
QT3030	Limited Stock From Get Price	Siemens	30	240
RD63M160	Limited Stock From Get Price	Siemens	1600	600
RD63M180	Limited Stock From Get Price	Siemens	1800	600
RD63M200	Limited Stock From Get Price	Siemens	2000	600
RXD63B180L	Limited Stock From Get Price	Siemens	1800	600
RXD63B200L	Limited Stock From Get Price	Siemens	2000	600
RXD63M160	Limited Stock From Get Price	Siemens	1600	600

1
...
747
748
749
...
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.