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
CQD125	In Stock From $39^.65	Siemens	25	277
CQD140	In Stock From $53^.87	Siemens	40	277
CQD150	In Stock From $82^.74	Siemens	50	277
CQD160	In Stock From $243^.41	Siemens	60	277
CQD235	In Stock From $78^.94	Siemens	35	480
CQD245	In Stock From $80^.56	Siemens	45	480
CQD325	In Stock From $143^.78	Siemens	25	480
CQD330	In Stock From $191^.73	Siemens	30	480
CQD335	In Stock From $224^.27	Siemens	35	480
CQD345	In Stock From $587^.53	Siemens	45	480
CQD350	In Stock From $237^.73	Siemens	50	480
CQD6235	In Stock From $541^.36	Siemens	35	600
CQD6315	In Stock From $611^.74	Siemens	15	600
CQD6320	In Stock From $514^.26	Siemens	20	600
CQD6330	In Stock From $487^.62	Siemens	30	600
D250	In Stock From $25^.67	Siemens	50	240
DK2250Y	In Stock From $1,269^.13	Westinghouse	250	240
DK2300Y	In Stock From $1,113^.58	Westinghouse	300	240
DK2350Y	In Stock From $609^.56	Westinghouse	350	240
DK3400F	In Stock From $516^.80	Eaton	400	240
E1SED22B015	In Stock From $934^.25	Siemens	15	240
E1SED22B020	In Stock From $934^.25	Siemens	20	240
E1SED43B080	In Stock From $2,022^.02	Siemens	80	480
ED2150BP10	In Stock From $347^.99	Eaton	150	240

1
...
294
295
296
...
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.