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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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Manufacturer
NF63-SW-4P-20A
NF63-SW-4P-20A
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Mitsubishi
NF800-SS
NF800-SS
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Mitsubishi
NFJ-3-150
NFJ-3-150
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American Circuit Breaker
NFNF-36225-AAHJ00
NFNF-36225-AAHJ00
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Schneider Electric
NFNLE36080RD12
NFNLE36080RD12
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Schneider Electric
NFTCBI-10
NFTCBI-10
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General Electric
NFTCBI-15
NFTCBI-15
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General Electric
NFTCBI-3
NFTCBI-3
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General Electric
NJ-S-6312
NJ-S-6312
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Federal Pacific
NJHN36000S60AEBH
NJHN36000S60AEBH
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Schneider Electric
NJNL36400E20AASNMALH
NJNL36400E20AASNMALH
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Schneider Electric
NL1-63-263/30-ASI
NL1-63-263/30-ASI
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Chint
NLMB116
NLMB116
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Newlec
NLRCD8030A
NLRCD8030A
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Newlec
NM480
NM480
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Hager
NP-1578027-C
NP-1578027-C
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General Electric
NPFI-63/0.03-SK
NPFI-63/0.03-SK
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Schupa
NQOD3125Q2MB
NQOD3125Q2MB
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Schneider Electric
NQOD424M100CUMX
NQOD424M100CUMX
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Schneider Electric
NRAN1100-2A-AA
NRAN1100-2A-AA
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IDEC
NRAN1100-F-0.75A-AA
NRAN1100-F-0.75A-AA
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IDEC
NRAN1100-F-3A-AA
NRAN1100-F-3A-AA
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IDEC
NRAN1100-O.5A-ED
NRAN1100-O.5A-ED
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IDEC
NRAN2100-15A-AA
NRAN2100-15A-AA
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IDEC
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.