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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
A9Y56640
A9Y56640
Limited Stock
From
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Schneider Electric
40
230
A9Y57640
A9Y57640
Limited Stock
From
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Schneider Electric
40
230
AM1R-A3-AC07D-A
AM1R-A3-AC07D-A
Limited Stock
From
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Heinemann
100
240
AM1R-C3-AC07D-A
AM1R-C3-AC07D-A
Limited Stock
From
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Eaton
100
240
AM2-A3-A-0010-03E
AM2-A3-A-0010-03E
Limited Stock
From
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Heinemann
-
-
AM2-A3-A-10-3
AM2-A3-A-10-3
Limited Stock
From
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Heinemann
-
-
AM2-A3-A-50-2
AM2-A3-A-50-2
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Heinemann
-
-
AM3R-A3-DC07D-A
AM3R-A3-DC07D-A
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Eaton
100
240
AM3R-A3-LC070-A
AM3R-A3-LC070-A
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Eaton
100
240
AM3R-C3-DC07D-A
AM3R-C3-DC07D-A
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From
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Heinemann
100
240
AM3R-C3-DE07D-A
AM3R-C3-DE07D-A
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From
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Eaton
100
240
BA2040
BA2040
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Westinghouse
-
240
BLHF2
BLHF2
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Siemens
20
120
BQ2100
BQ2100
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From
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Sylvania
100
240
BQ220
BQ220
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From
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Sylvania
20
240
BQ245
BQ245
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Sylvania
45
240
BQ250
BQ250
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Sylvania
50
240
BQ2B070QXD
BQ2B070QXD
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Siemens
-
240
BQ2B080QXD
BQ2B080QXD
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Siemens
-
240
BQ2B100QXD
BQ2B100QXD
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Siemens
-
240
BQL2135
BQL2135
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From
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Commander
135
240
BR115GFI
BR115GFI
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From
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Westinghouse
15
120
BR1520CS
BR1520CS
Limited Stock
From
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Westinghouse
20
120
BR3100NA
BR3100NA
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Bryant
100
240
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.