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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
BQ2B015F
BQ2B015F
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Siemens
15
240
BQ2B015H01
BQ2B015H01
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Siemens
15
240
BQ2B015M
BQ2B015M
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Siemens
15
240
BQ2B015QXD
BQ2B015QXD
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Siemens
15
240
BQ2B015Y
BQ2B015Y
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Siemens
15
240
BQ2B02001
BQ2B02001
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Siemens
20
240
BQ2B020H01
BQ2B020H01
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Siemens
20
240
BQ2B020HL
BQ2B020HL
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Siemens
20
240
BQ2B020M
BQ2B020M
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Siemens
20
240
BQ2B020QLD
BQ2B020QLD
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Siemens
20
240
BQ2B020QX
BQ2B020QX
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Siemens
20
240
BQ2B020QXD
BQ2B020QXD
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Siemens
20
240
BQ2B020Y
BQ2B020Y
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Siemens
20
240
BQ2B02501
BQ2B02501
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Siemens
25
240
BQ2B025H01
BQ2B025H01
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Siemens
25
240
BQ2B025HY
BQ2B025HY
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Siemens
25
240
BQ2B025QLD
BQ2B025QLD
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Siemens
25
240
BQ2B025QX
BQ2B025QX
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Siemens
25
240
BQ2B025QXD
BQ2B025QXD
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Siemens
25
240
BQ2B03001
BQ2B03001
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Siemens
30
240
BQ2B030H01
BQ2B030H01
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Siemens
30
240
BQ2B030HL
BQ2B030HL
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Siemens
30
240
BQ2B030QXD
BQ2B030QXD
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From
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Siemens
30
240
BQ2B030Y
BQ2B030Y
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Siemens
30
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.