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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
LV429657ATS3
LV429657ATS3
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Schneider Electric
100
690
LV429657ATS4
LV429657ATS4
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Schneider Electric
100
690
LV429657D
LV429657D
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Schneider Electric
100
690
LV429657MT1
LV429657MT1
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Schneider Electric
100
690
LV429657MT2
LV429657MT2
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Schneider Electric
100
690
LV429657P
LV429657P
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Schneider Electric
100
690
LV429670ATS1
LV429670ATS1
Limited Stock
From
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Schneider Electric
100
690
LV429670ATS2
LV429670ATS2
Limited Stock
From
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Schneider Electric
100
690
LV429670ATS3
LV429670ATS3
Limited Stock
From
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Schneider Electric
100
690
LV429670ATS4
LV429670ATS4
Limited Stock
From
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Schneider Electric
100
690
LV429670D
LV429670D
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429670MT1
LV429670MT1
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429670MT2
LV429670MT2
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429670P
LV429670P
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671ATS1
LV429671ATS1
Limited Stock
From
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Schneider Electric
100
690
LV429671ATS2
LV429671ATS2
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671ATS3
LV429671ATS3
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671ATS4
LV429671ATS4
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671D
LV429671D
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671MT1
LV429671MT1
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671MT2
LV429671MT2
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429671P
LV429671P
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429672ATS1
LV429672ATS1
Limited Stock
From
Get Price
Schneider Electric
100
690
LV429672ATS2
LV429672ATS2
Limited Stock
From
Get Price
Schneider Electric
100
690
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.