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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
3VA52125EC310AA0
3VA52125EC310AA0
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Siemens
-
-
5SU1654-6KK16
5SU1654-6KK16
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Siemens
16
400
5SV4342-0
5SV4342-0
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Siemens
42
400
5SX22-3-8
5SX22-3-8
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Siemens
3
400
5SX23-D16
5SX23-D16
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Siemens
16
400
5SY4416-6
5SY4416-6
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Siemens
16
400
5SY4503-7
5SY4503-7
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Siemens
-
-
5SY7213-6
5SY7213-6
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Siemens
13
400
5SY7220-6
5SY7220-6
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Siemens
20
400
5SY7225-6
5SY7225-6
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Siemens
25
400
5SY7232-6
5SY7232-6
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Siemens
32
400
5SY7363-7
5SY7363-7
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Siemens
63
400
989750
989750
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Square D
50
480
A9D17210
A9D17210
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Schneider Electric
-
-
A9D17310
A9D17310
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Schneider Electric
-
-
BDA24100Y2
BDA24100Y2
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Square D
-
-
CH2100-BF200-1.5
CH2100-BF200-1.5
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Eaton
-
-
DE3225F
DE3225F
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ABB
-
-
EBMBA
EBMBA
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Eaton
-
-
EHB3075
EHB3075
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Westinghouse
-
-
EP104CP3
EP104CP3
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ABB
-
-
GFI15
GFI15
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General Switch
15
120
HJD3200P
HJD3200P
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Eaton
-
-
HJD3250P
HJD3250P
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Eaton
-
-
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.