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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
RKF36160U44A
RKF36160U44A
Limited Stock
From
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Square D
1600
600
RKF36160U64AE1
RKF36160U64AE1
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Square D
1600
600
RKF36200CU31A
RKF36200CU31A
Limited Stock
From
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Square D
2000
600
RKF36200CU33A
RKF36200CU33A
Limited Stock
From
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Schneider Electric
2000
600
RKF36200U31A
RKF36200U31A
Limited Stock
From
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Schneider Electric
2000
600
RKF36200U64AE1
RKF36200U64AE1
Limited Stock
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Square D
2000
600
RKF36250CU31A
RKF36250CU31A
Limited Stock
From
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Square D
2500
600
RKF36250CU33A
RKF36250CU33A
Limited Stock
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Square D
2500
600
RKF36250CU64AE1
RKF36250CU64AE1
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From
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Square D
2500
600
RKF36300CU33A
RKF36300CU33A
Limited Stock
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Schneider Electric
3000
600
RKF36300CU44A
RKF36300CU44A
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Schneider Electric
3000
600
RL1000
RL1000
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Schneider Electric
1000
600
RL1600
RL1600
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Schneider Electric
1600
600
RL2000
RL2000
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Square D
2000
600
RL2500
RL2500
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Square D
2500
600
RLA36100CU33A
RLA36100CU33A
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Square D
1000
600
RLA36100CU44A
RLA36100CU44A
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Square D
1000
600
RLA36120CU41A
RLA36120CU41A
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Schneider Electric
1200
600
RLA36120CU43A
RLA36120CU43A
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Square D
1200
600
RLF36060CU44A
RLF36060CU44A
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From
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Square D
600
600
RLF36080CU44A
RLF36080CU44A
Limited Stock
From
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Square D
800
600
RLF36080U33A
RLF36080U33A
Limited Stock
From
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Schneider Electric
800
600
RLF36120U44A
RLF36120U44A
Limited Stock
From
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Schneider Electric
1200
600
RLF36120U64AE1
RLF36120U64AE1
Limited Stock
From
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Schneider Electric
1200
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.