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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
EZC100N3060
EZC100N3060
Limited Stock
From
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Merlin Gerin
60
690
INS40-4P
INS40-4P
Limited Stock
From
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Merlin Gerin
40
690
INS63
INS63
Limited Stock
From
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Merlin Gerin
63
690
INS63-4P
INS63-4P
Limited Stock
From
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Merlin Gerin
63
690
INS80-4P
INS80-4P
Limited Stock
From
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Merlin Gerin
80
690
LV429263
LV429263
Limited Stock
From
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Schneider Electric
-
-
NJNP36400E20
NJNP36400E20
Limited Stock
From
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Merlin Gerin
400
600
NJNP36600E20
NJNP36600E20
Limited Stock
From
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Schneider Electric
600
600
29011
29011
Limited Stock
From
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Merlin Gerin
100
690
31409
31409
Limited Stock
From
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Merlin Gerin
250
690
31411
31411
Limited Stock
From
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Schneider Electric
250
690
CE104E-100A
CE104E-100A
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From
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Merlin Gerin
100
480
CE104E-15A
CE104E-15A
Limited Stock
From
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Merlin Gerin
15
480
CE104E-20A
CE104E-20A
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From
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Merlin Gerin
20
480
CE104E-25A
CE104E-25A
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From
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Merlin Gerin
25
480
CE104E-30A
CE104E-30A
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From
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Merlin Gerin
30
480
CE104E-35A
CE104E-35A
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From
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Merlin Gerin
35
480
CE104E-40A
CE104E-40A
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From
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Merlin Gerin
40
480
CE104E-50A
CE104E-50A
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Merlin Gerin
50
480
CE104E-70A
CE104E-70A
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From
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Merlin Gerin
70
480
CE104E-80A
CE104E-80A
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From
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Merlin Gerin
80
480
CE104E-90A
CE104E-90A
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From
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Merlin Gerin
90
480
25639
25639
Limited Stock
From
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Square D
1
240
25647
25647
Limited Stock
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Merlin Gerin
25
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.