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Molded Case Circuit Breaker

Eaton

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Molded Case Circuit Breaker

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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.

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Part Number	PRICE	Manufacturer	Amperage	Voltage
KD3400F	In Stock From $742^.49	Eaton	400	600
KD3400KW	In Stock From $1,734^.93	Cutler Hammer	400	600
KD3400V	In Stock From $3,037^.07	Eaton	400	600
KD3400W	In Stock From $2,235^.53	Westinghouse	400	600
KDB3150	In Stock From $1,621^.30	Eaton	150	600
KDB3150W	In Stock From $1,337^.42	Westinghouse	150	600
KDB3225	In Stock From $1,343^.32	Westinghouse	225	600
KDB3250W	In Stock From $1,053^.46	Eaton	250	600
KDB3300	In Stock From $1,611^.68	Westinghouse	300	600
KDB3300W	In Stock From $999^.48	Westinghouse	300	600
KDB3400	In Stock From $2,012^.40	Eaton	400	600
KDB3400W	In Stock From $1,089^.39	Eaton	400	600
KDC3400F	In Stock From $1,738^.54	Eaton	400	600
KDC3400W	In Stock From Get Price	Cutler Hammer	400	600
KG3400	In Stock From $3,416^.04	Eaton	400	600
LD3300	In Stock From $3,191^.34	Westinghouse	300	600
LD3400	In Stock From $2,027^.63	Eaton	400	600
LD3500	In Stock From $2,474^.23	Eaton	500	600
LD3600	In Stock From $2,550^.92	Eaton	600	600
LD3600F	In Stock From $2,459^.64	Eaton	600	600
LD3600WK	In Stock From $2,285^.99	Eaton	600	600
LDB3500W	In Stock From $2,572^.27	Eaton	500	600
LDB3600FT36W	In Stock From $3,165^.92	Eaton	600	600
LDB3600W	In Stock From $3,808^.66	Westinghouse	600	600

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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.