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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
NZMN2-M160	In Stock From $2,249^.52	Eaton	160	690
NZMN2-ME220	Limited Stock From Get Price	Eaton	220	690
NZMN3-4-AE630/400	Limited Stock From Get Price	Eaton	630	690
NZMN3-AE630	In Stock From $14,867^.22	Eaton	630	690
NZMN4-AEF1000-NA	In Stock From $7,483^.51	Klockner Moeller	1000	600
NZMN4-AEF1200-NA	In Stock From $17,434^.47	Klockner Moeller	1200	600
ZM6-100-CNA	In Stock From $146^.39	Klockner Moeller	100	600
NZM6B-63/ZM6-12-80-OBI-CNA	In Stock From $331^.27	Eaton	12	600
NZM6B-63/ZM6-6.6-32-OBI-CNA	In Stock From $265^.44	Eaton	6.6	600
NZM6B-63/ZM6-6.6-50-OBI-CNA	In Stock From $452^.20	Eaton	6.6	600
NZM7-80N-NA	In Stock From $387^.27	Eaton	80	600
NZM7A-25N-NA	In Stock From $138^.59	Klockner Moeller	40	600
NZM7A-60N-NA	In Stock From $189^.01	Eaton	60	600
NZM7A-80N-NA	Limited Stock From Get Price	Eaton	80	600
NZM7A-90N-NA	Limited Stock From Get Price	Eaton	100	600
NZM9-250/ZM9A-125-NA	In Stock From $1,078^.75	Eaton	125	600
NZMB1-4-A20	In Stock From $141^.40	Klockner Moeller	20	440
NZMB1-4-A40	Limited Stock From Get Price	Eaton	40	440
NZMB1-4-A80	Limited Stock From Get Price	Klockner Moeller	80	440
NZMB1-A125-NA	In Stock From $2,196^.88	Eaton	125	480
NZMB1-A20	Limited Stock From Get Price	Eaton	20	440
NZMB1-A25-NA	In Stock From $378^.00	Klockner Moeller	25	480
NZMB1-A32-NA	In Stock From $977^.49	Klockner Moeller	32	480
NZMB1-A40	In Stock From $685^.17	Klockner Moeller	40	440

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.