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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
BQ3B06000S07
BQ3B06000S07
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Siemens
60
240
BQ3B06001
BQ3B06001
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Siemens
60
240
BQ3B060F
BQ3B060F
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Siemens
60
240
BQ3B060H00S01
BQ3B060H00S01
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Siemens
60
240
BQ3B060H00S07
BQ3B060H00S07
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Siemens
60
240
BQ3B060H01
BQ3B060H01
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Siemens
60
240
BQ3B060HF
BQ3B060HF
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Siemens
60
240
BQ3B060HM
BQ3B060HM
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Siemens
60
240
BQ3B060HQX
BQ3B060HQX
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Siemens
60
240
BQ3B060M
BQ3B060M
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Siemens
60
240
BQ3B060QX
BQ3B060QX
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Siemens
60
240
BQ3B060QXD
BQ3B060QXD
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Siemens
60
240
BQ3B060Y
BQ3B060Y
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Siemens
60
240
BQ3B07000S07
BQ3B07000S07
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Siemens
70
240
BQ3B070AB
BQ3B070AB
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Siemens
70
240
BQ3B070F
BQ3B070F
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Siemens
70
240
BQ3B070H00S01
BQ3B070H00S01
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Siemens
70
240
BQ3B070H00S07
BQ3B070H00S07
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Siemens
70
240
BQ3B070H01
BQ3B070H01
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Siemens
70
240
BQ3B070HF
BQ3B070HF
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Siemens
70
240
BQ3B070HM
BQ3B070HM
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From
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Siemens
70
240
BQ3B070HQX
BQ3B070HQX
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From
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Siemens
70
240
BQ3B070HY
BQ3B070HY
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Siemens
70
240
BQ3B070M
BQ3B070M
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Siemens
70
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.