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
B3100Y	In Stock From $42^.00	Siemens	100	240
BQ2B050QX	In Stock From $32^.10	Siemens	50	240
BQ2B060QXD	In Stock From $215^.45	Siemens	60	240
CED63B100	In Stock From $738^.32	Siemens	100	600
CMD63B700	In Stock From $25,094^.20	Siemens	700	600
CMD63B800	In Stock From $4,440^.75	Siemens	800	600
D230	In Stock From $51^.62	Siemens	30	240
ED23B100	In Stock From $312^.31	Siemens	100	240
ED41B015	In Stock From $85^.22	Siemens	15	120
ED42B020	In Stock From $193^.31	Siemens	20	480
ED42B030	In Stock From $471^.57	Siemens	30	480
EE1B020	In Stock From $24^.43	ITE	20	120
EE3B045	In Stock From $127^.43	Siemens	45	240
EE3B050	In Stock From $279^.14	ITE	50	240
FD63B200	In Stock From $903^.26	Siemens	200	600
FD63B250	In Stock From $834^.52	Siemens	250	600
FXD63B150L	In Stock From $733^.42	Siemens	150	600
FXD63B200L	In Stock From $5,037^.33	Siemens	200	600
FXD63L150	In Stock From $981^.43	Siemens	150	600
FXD63S250A	In Stock From $840^.32	Siemens	250	600
HB2B040	In Stock From $370^.51	Siemens	40	240
HB2B050	In Stock From $101^.81	Siemens	50	240
HEB2B110B	In Stock From $391^.17	Siemens	110	600
HEB3B050B	In Stock From $2,109^.61	Siemens	50	600

1
...
48
49
50
...
1,177

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.