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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
TB24-5
TB24-5
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Thomas & Betts
TBFPH100-2
TBFPH100-2
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Thomas & Betts
THQD32150ST1
THQD32150ST1
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General Electric
140G-H6C3-C60-KA
140G-H6C3-C60-KA
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Allen-Bradley
140U-H2C3-C50-A
140U-H2C3-C50-A
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Allen-Bradley
1600-159-150
1600-159-150
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Mechanical Products
219-3-22052-05
219-3-22052-05
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Sensata Technologies
219-3-29733-08
219-3-29733-08
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Sensata Technologies
2CDS-251-001-R0317
2CDS-251-001-R0317
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ABB
3RV2321-1JC10
3RV2321-1JC10
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Siemens
A9N18434
A9N18434
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Schneider Electric
A9N61508
A9N61508
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Schneider Electric
ABDBL200C0
ABDBL200C0
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Schurter
BW32SAG-3P010
BW32SAG-3P010
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Fuji Electric
E11592-15A
E11592-15A
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General Electric
E11592-2P-40A
E11592-2P-40A
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General Electric
E11592-2P-50A
E11592-2P-50A
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General Electric
E11592-3P-100A
E11592-3P-100A
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General Electric
E11592-3P-30A
E11592-3P-30A
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General Electric
FPS16
FPS16
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Frizlen Gmbh & Co Kg
MG30408
MG30408
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Schneider Electric
REF3-B030
REF3-B030
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Miami Breaker
S201-K10A
S201-K10A
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ABB
S401M-C16NP
S401M-C16NP
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ABB
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.