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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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0111V-7.5A
0111V-7.5A
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Eaton
0912-20-1P
0912-20-1P
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Eaton
123L20-00P-HB
123L20-00P-HB
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Eaton
161QB
161QB
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Eaton
185135F
185135F
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Eaton
185150F
185150F
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Eaton
2263S-2-10
2263S-2-10
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Eaton
401QEB
401QEB
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Eaton
8111-14
8111-14
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Eaton
AD1S-B2-A0-DN-H-A-61-10
AD1S-B2-A0-DN-H-A-61-10
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Eaton
AHC633
AHC633
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Eaton
AM2-B3-A-0005-02N
AM2-B3-A-0005-02N
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Eaton
AM2-Z59-2
AM2-Z59-2
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Eaton
AM3R-A3-LC07P-AB
AM3R-A3-LC07P-AB
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Eaton
AZG-32A-3
AZG-32A-3
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Eaton
AZR20-2
AZR20-2
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Eaton
C10DX
C10DX
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Eaton
CD1-G3-U-020
CD1-G3-U-020
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Eaton
CF2-G3-AB0005-02B
CF2-G3-AB0005-02B
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Eaton
CF3-G8-AB-04R5-100-B
CF3-G8-AB-04R5-100-B
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Eaton
CFDPV4100W
CFDPV4100W
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Eaton
CGHQ-1015
CGHQ-1015
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Eaton
CHB3-2-100
CHB3-2-100
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Eaton
CJG-PVS3250
CJG-PVS3250
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Eaton
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.