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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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W69-X3014-30
W69-X3014-30
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TE Connectivity
W69-X8Q12-1
W69-X8Q12-1
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TE Connectivity
W69-X8Q12-15
W69-X8Q12-15
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TE Connectivity
W69-X8Q12-5
W69-X8Q12-5
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TE Connectivity
W92-X1110-20
W92-X1110-20
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TE Connectivity
W92-X1110-20V
W92-X1110-20V
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TE Connectivity
W93-X1110-50
W93-X1110-50
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TE Connectivity
W93-X112-15
W93-X112-15
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TE Connectivity
W93-X112-25
W93-X112-25
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TE Connectivity
W93-X112-30
W93-X112-30
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TE Connectivity
W93-X112-40V
W93-X112-40V
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TE Connectivity
WCC3100
WCC3100
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Eaton
WMN1-B16
WMN1-B16
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Eaton
WMN1-C02
WMN1-C02
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Eaton
WRDS63/4
WRDS63/4
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Wylex
X0415-25A
X0415-25A
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Eaton
X1345033502
X1345033502
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Schneider Electric
XR1PC3230
XR1PC3230
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Tyco
YA3B3P250D
YA3B3P250D
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Tyco
140M-18P-C30-M
140M-18P-C30-M
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Allen-Bradley
140M-18P-C30S-M-RC
140M-18P-C30S-M-RC
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Allen-Bradley
1492-CB2-G200
1492-CB2-G200
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Allen-Bradley
1492-CB2DG050
1492-CB2DG050
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Allen-Bradley
1492-CB3
1492-CB3
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Allen-Bradley
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.