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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
LJA36400CU31XYP
LJA36400CU31XYP
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Square D
-
-
LJA36400U43XEN
LJA36400U43XEN
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Square D
400
600
LJA36400U43XENYH1
LJA36400U43XENYH1
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Square D
400
600
LJA36400U44XEHYH3
LJA36400U44XEHYH3
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Square D
400
600
MHBC-120
MHBC-120
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Schneider Electric
-
-
25802
25802
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Schneider Electric
10
240
25882
25882
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Square D
10
440
25885
25885
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Merlin Gerin
25
440
25887
25887
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Schneider Electric
40
440
25888
25888
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Merlin Gerin
50
440
A9D17310
A9D17310
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From
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Schneider Electric
-
-
BDA240151
BDA240151
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Schneider Electric
15
480
BDA240152
BDA240152
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Schneider Electric
15
480
BDA240153
BDA240153
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Schneider Electric
15
480
BDA240154
BDA240154
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Square D
15
480
BDA240155
BDA240155
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Schneider Electric
15
480
BDA240156
BDA240156
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Square D
15
480
BDA240201
BDA240201
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Schneider Electric
20
480
BDA240202
BDA240202
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Square D
20
480
BDA240203
BDA240203
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Schneider Electric
20
480
BDA240204
BDA240204
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Square D
20
480
BDA240205
BDA240205
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Schneider Electric
20
480
BDA240206
BDA240206
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Square D
20
480
BDA240251
BDA240251
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Square D
25
480
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.