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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
LW2315
LW2315
Limited Stock
From
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Eaton
315
690
LW2400
LW2400
Limited Stock
From
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Westinghouse
400
690
LW2500
LW2500
Limited Stock
From
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Eaton
500
690
LW2630F
LW2630F
Limited Stock
From
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Westinghouse
630
690
LW2630KW
LW2630KW
Limited Stock
From
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Cutler Hammer
630
690
LW3700
LW3700
Limited Stock
From
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Cutler Hammer
700
690
LW3800
LW3800
Limited Stock
From
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Eaton
800
690
LW4400
LW4400
Limited Stock
From
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Eaton
400
690
LWC2315
LWC2315
Limited Stock
From
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Eaton
315
690
LWC2400
LWC2400
Limited Stock
From
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Westinghouse
400
690
LWC2500
LWC2500
Limited Stock
From
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Eaton
500
690
LWC2630
LWC2630
Limited Stock
From
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Eaton
630
690
LWC2630F
LWC2630F
Limited Stock
From
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Westinghouse
630
690
LWC3315
LWC3315
Limited Stock
From
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Westinghouse
315
690
LWC3600
LWC3600
Limited Stock
From
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Westinghouse
600
690
LWC4400
LWC4400
Limited Stock
From
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Cutler Hammer
400
690
LWC4500
LWC4500
Limited Stock
From
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Cutler Hammer
500
690
LXD63B600S
LXD63B600S
Limited Stock
From
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Siemens
600
600
M1N100T2
M1N100T2
Limited Stock
From
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Noark Electric
100
600
M1N100T2L
M1N100T2L
Limited Stock
From
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Noark Electric
100
600
M1N100T2P
M1N100T2P
Limited Stock
From
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Noark Electric
100
600
M1N100T2R
M1N100T2R
Limited Stock
From
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Noark Electric
100
600
M1N100T3
M1N100T3
Limited Stock
From
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Noark Electric
100
600
M1N100T3P
M1N100T3P
Limited Stock
From
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Noark Electric
100
600
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.