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
140M-F8E-C45	In Stock From $398^.74	Allen-Bradley	45	600
140M-F8N-C25	In Stock From $498^.01	Allen-Bradley	25	600
140M-F8N-C45	In Stock From $1,461^.49	Allen-Bradley	45	600
140M-H8P-B70	In Stock From $609^.64	Allen-Bradley	7	600
140M-H8P-C70	In Stock From $1,574^.25	Allen-Bradley	70	600
140M-I8E-C80	In Stock From $1,265^.59	Allen-Bradley	80	600
140M-I8E-D16E	In Stock From $873^.09	Allen-Bradley	160	600
140M-I8E-D20	In Stock From $1,231^.05	Allen-Bradley	205	600
140M-I8P-B30S	In Stock From $723^.35	Allen-Bradley	3	600
140M-I8P-C15	In Stock From $143^.42	Allen-Bradley	15	600
140M-I8P-C30	In Stock From $133^.21	Allen-Bradley	30	600
140M-I8P-C30S	In Stock From $603^.13	Allen-Bradley	30	600
140M-I8P-C50S	In Stock From $240^.31	Allen-Bradley	50	600
140M-I8P-D10	In Stock From $779^.43	Allen-Bradley	100	600
140M-I8P-D15	In Stock From $669^.20	Allen-Bradley	150	600
140M-JD8P-D14-W	In Stock From $1,054^.44	Allen-Bradley	250	600
140M-JD8P-D20-W	In Stock From $937^.82	Allen-Bradley	250	600
140M-K8P-D40	In Stock From $3,111^.11	Allen-Bradley	400	600
140U-G1C2-C15	In Stock From $49^.64	Allen-Bradley	15	600
140U-G1C2-C20	In Stock From $57^.50	Allen-Bradley	20	600
140U-G1C2-C35	In Stock From $163^.62	Allen-Bradley	35	600
140U-G2C3-C15	In Stock From $397^.80	Allen-Bradley	15	600
140U-G2C3-C20-A	In Stock From $282^.95	Allen-Bradley	20	600
140U-G2C3-C25	In Stock From $427^.99	Allen-Bradley	25	600

1
...
410
411
412
...
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.