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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
3VL2706-1EJ43-0AB1-Z
3VL2706-1EJ43-0AB1-Z
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Siemens
-
-
3VL9300-8BC00
3VL9300-8BC00
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Siemens
-
-
3VL9300-8CE00
3VL9300-8CE00
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Siemens
-
-
3VL9400-1UP00
3VL9400-1UP00
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Siemens
-
-
B1515ID
B1515ID
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Siemens
15
120
B1515NID
B1515NID
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Siemens
15
120
B2020ID
B2020ID
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Siemens
20
120
B2020NI
B2020NI
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Siemens
20
120
B3030NI
B3030NI
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Siemens
30
120
B310H
B310H
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Siemens
10
240
B310HH
B310HH
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Siemens
10
240
BF2B015
BF2B015
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Siemens
15
240
BF2B020
BF2B020
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Siemens
20
240
BF2B030
BF2B030
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Siemens
30
240
BF2B040
BF2B040
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Siemens
40
240
BQ1-T015
BQ1-T015
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Siemens
15
120
BQ1C015ITE
BQ1C015ITE
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Siemens
15
120
BQ1C020ITE
BQ1C020ITE
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Siemens
20
120
BQ1C030ITE
BQ1C030ITE
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ITE
30
120
CLF63S250
CLF63S250
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Siemens
250
600
FFC3M200
FFC3M200
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Siemens
200
415
FJ63S250
FJ63S250
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ITE
250
600
G3B015
G3B015
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ITE
15
240
G3B090
G3B090
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ITE
90
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.