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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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X3PB32
X3PB32
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Tyco
X3PD10
X3PD10
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Tyco
Y2N3P100T
Y2N3P100T
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Tyco
Y2N3P63T
Y2N3P63T
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Tyco
Y2N3P63T5
Y2N3P63T5
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Tyco
Y6B3P800D
Y6B3P800D
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Tyco
Y6B4P400D
Y6B4P400D
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Tyco
YA3N3P200T
YA3N3P200T
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Tyco
YA5N4P250T
YA5N4P250T
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Tyco
YA5NP250T
YA5NP250T
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Tyco
AS162
AS162
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Tyco
AS16B
AS16B
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Tyco
AS32C
AS32C
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Tyco
AT063
AT063
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Tyco
AV3100
AV3100
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Tyco
K3PC06
K3PC06
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Tyco
LLBCNT-250
LLBCNT-250
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Tyco
LLM1-P16CO
LLM1-P16CO
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Tyco
LM1P15
LM1P15
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Tyco
LM3P15
LM3P15
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Tyco
X1PB32
X1PB32
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Tyco
YA3N3P20T
YA3N3P20T
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Tyco
AT16D
AT16D
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Tyco
KR1PC1630A
KR1PC1630A
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Tyco
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.