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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
Amperage
Voltage
SHKF3B700G
SHKF3B700G
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Siemens
700
600
SHKF3B800G
SHKF3B800G
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Siemens
800
600
SHP3B100
SHP3B100
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Siemens
1000
600
SHP3B120
SHP3B120
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Siemens
1200
600
SHP3B140G
SHP3B140G
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Siemens
1400
600
SHP3B800
SHP3B800
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Siemens
800
600
SHP3B900
SHP3B900
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Siemens
900
600
3RV1321-0FC10
3RV1321-0FC10
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Siemens
-
-
3RV1721-0JD10
3RV1721-0JD10
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Siemens
-
-
3RV2111-0KA10
3RV2111-0KA10
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Siemens
-
-
3RV2131-4RA10
3RV2131-4RA10
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Siemens
-
-
3VA4110-5ED24-0AA0
3VA4110-5ED24-0AA0
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Siemens
100
250
3VA5112-4ED36-0AA0
3VA5112-4ED36-0AA0
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Siemens
125
480
3VA5195-6EF31-0AA0
3VA5195-6EF31-0AA0
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Siemens
15
480
3VA5280-5ED31-0AA0
3VA5280-5ED31-0AA0
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Siemens
80
480
3VA5325-6EC31-2AA0
3VA5325-6EC31-2AA0
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Siemens
250
600
3VA6225-0HL31-0AA0
3VA6225-0HL31-0AA0
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Siemens
250
600
3VA6580-6HL32-0AA0
3VA6580-6HL32-0AA0
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Siemens
800
600
3VA6580-6HN32-0AA0
3VA6580-6HN32-0AA0
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Siemens
800
600
3VA6580-7HN32-2AA0
3VA6580-7HN32-2AA0
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Siemens
800
600
3VA9977-0CH12
3VA9977-0CH12
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Siemens
-
-
3VL1708-2DD33-0AB1
3VL1708-2DD33-0AB1
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Siemens
-
-
3VL1712-2EH43-0AA0
3VL1712-2EH43-0AA0
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Siemens
-
-
3VL2105-2KN30-0AA0
3VL2105-2KN30-0AA0
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Siemens
-
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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.