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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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1SDA067411R1
1SDA067411R1
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ABB
1SDA068092R1
1SDA068092R1
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ABB
1SDA073907R1
1SDA073907R1
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ABB
S162-G10A
S162-G10A
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ABB
S201M-B10
S201M-B10
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ABB
S201UDC-K63
S201UDC-K63
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ABB
S202P-Z2A
S202P-Z2A
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ABB
S202UDC-K16
S202UDC-K16
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ABB
S202UDC-Z25
S202UDC-Z25
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ABB
S203M-C40
S203M-C40
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ABB
S203M-K16
S203M-K16
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ABB
S203M-K3UC
S203M-K3UC
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ABB
S203PR-K10
S203PR-K10
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ABB
S242-C40
S242-C40
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ABB
S252-C16
S252-C16
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ABB
S253-C50
S253-C50
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ABB
S271-K16
S271-K16
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ABB
S273-C40
S273-C40
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ABB
S402M-B40
S402M-B40
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ABB
S8-V-16-E-W-0-004XLT
S8-V-16-E-W-0-004XLT
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ABB
S802N-B16
S802N-B16
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ABB
S803C-D40
S803C-D40
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ABB
S803C-D80
S803C-D80
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S803U-K15
S803U-K15
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ABB
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.