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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
RKA36120CU43A
RKA36120CU43A
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Square D
1200
600
RKF36120U44A
RKF36120U44A
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Square D
1200
600
RKF36160
RKF36160
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Schneider Electric
1600
600
RKF36160U31A
RKF36160U31A
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Schneider Electric
1600
600
RKF36200CU44A
RKF36200CU44A
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From
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Schneider Electric
2000
600
RKF36250CU44A
RKF36250CU44A
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Schneider Electric
2500
600
RKF36250U44A
RKF36250U44A
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Square D
2500
600
RLA36100CU64AE1
RLA36100CU64AE1
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Square D
1000
600
RLA36120CU31A
RLA36120CU31A
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Square D
1200
600
RLA36120CU33A
RLA36120CU33A
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Schneider Electric
1200
600
RLF36160U44A
RLF36160U44A
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From
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Schneider Electric
1600
600
RLF36200U44A
RLF36200U44A
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Square D
2000
600
BDA260351
BDA260351
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Square D
35
600
BDA260451
BDA260451
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Square D
45
600
LDP36250U31X
LDP36250U31X
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Square D
250
600
PGA36025
PGA36025
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Square D
250
600
PGA36040
PGA36040
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Schneider Electric
400
600
PGF36025U31A
PGF36025U31A
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Square D
250
600
PGF36040U31A
PGF36040U31A
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Schneider Electric
400
600
BDA160453
BDA160453
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Schneider Electric
45
600
BDA260155
BDA260155
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Schneider Electric
15
600
BDA260205
BDA260205
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Square D
20
600
BDA260255
BDA260255
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Schneider Electric
25
600
BDA260306
BDA260306
Limited Stock
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Square D
30
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.