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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
JMKB400XCBW
JMKB400XCBW
Limited Stock
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Siemens
400
1000
JXD22B200H
JXD22B200H
Limited Stock
From
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Siemens
200
240
JXD22B200HL
JXD22B200HL
Limited Stock
From
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Siemens
200
240
JXD22B225H
JXD22B225H
Limited Stock
From
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Siemens
225
240
JXD22B225HL
JXD22B225HL
Limited Stock
From
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Siemens
225
240
JXD22B300H
JXD22B300H
Limited Stock
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Siemens
300
240
JXD22B300HL
JXD22B300HL
Limited Stock
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Siemens
300
240
JXD22B350H
JXD22B350H
Limited Stock
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Siemens
350
240
JXD22B350HL
JXD22B350HL
Limited Stock
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Siemens
350
240
JXD22M200H
JXD22M200H
Limited Stock
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Siemens
200
240
JXD22M200HL
JXD22M200HL
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Siemens
200
240
JXD22M225H
JXD22M225H
Limited Stock
From
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Siemens
225
240
JXD22M225HL
JXD22M225HL
Limited Stock
From
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Siemens
225
240
JXD22M225L
JXD22M225L
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Siemens
225
240
JXD22M250
JXD22M250
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Siemens
250
240
JXD22M250H
JXD22M250H
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Siemens
250
240
JXD22M250HL
JXD22M250HL
Limited Stock
From
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Siemens
250
240
JXD22M250L
JXD22M250L
Limited Stock
From
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Siemens
250
240
JXD22M300
JXD22M300
Limited Stock
From
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Siemens
300
240
JXD22M300H
JXD22M300H
Limited Stock
From
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Siemens
300
240
JXD22M300HL
JXD22M300HL
Limited Stock
From
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Siemens
300
240
JXD22M300L
JXD22M300L
Limited Stock
From
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Siemens
300
240
JXD22M350
JXD22M350
Limited Stock
From
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Siemens
350
240
JXD22M350H
JXD22M350H
Limited Stock
From
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Siemens
350
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.