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Molded Case Circuit Breaker

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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
NEB2B100B	In Stock From $208^.99	Siemens	100	600
NEB3B015	In Stock From $883^.55	Siemens	15	600
NEB3B020	In Stock From $1,044^.11	Siemens	20	600
NEB3B035B	In Stock From $1,514^.33	Siemens	35	600
NEB3B060	In Stock From $1,289^.42	Siemens	60	600
NEB3B080B	In Stock From $1,638^.46	Siemens	80	600
NEB3B100B	In Stock From $1,509^.11	Siemens	100	600
NEG2B040L	In Stock From $1,929^.17	Siemens	40	600
NEG2B060L	In Stock From $1,999^.94	Siemens	60	600
NEG3B020	In Stock From $316^.62	Siemens	20	600
NEG3B050	In Stock From $261^.97	Siemens	50	600
NEG3B110L	In Stock From $2,648^.80	Siemens	110	600
NEG4B030L	In Stock From $3,185^.54	Siemens	30	600
NFK3V150L	In Stock From $888^.89	Siemens	150	600
NFX3B150	In Stock From $2,497^.02	Siemens	150	600
NGB1B020V	In Stock From $50^.47	Siemens	20	347
NGB2B020	In Stock From $404^.58	Siemens	20	600
NGB2B030B	In Stock From $208^.26	Siemens	30	600
NGB2B040B	In Stock From $216^.34	Siemens	40	600
NGB2B045B	In Stock From $153^.93	Siemens	45	600
NGB2B050L	In Stock From $271^.02	Siemens	50	600
NGB2B060	In Stock From $164^.88	Siemens	60	600
NGB2B060B	In Stock From $207^.02	Siemens	60	600
NGB2B070B	In Stock From $220^.38	Siemens	70	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.