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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
REE3L090L
REE3L090L
Limited Stock
From
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Miami Breaker
90
240
REE3L100
REE3L100
Limited Stock
From
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Miami Breaker
100
240
REE3L100L
REE3L100L
Limited Stock
From
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Miami Breaker
100
240
REF2A003
REF2A003
Limited Stock
From
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Miami Breaker
3
600
REF2A003L
REF2A003L
Limited Stock
From
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Miami Breaker
3
600
REF2A005
REF2A005
Limited Stock
From
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Miami Breaker
5
600
REF2A005L
REF2A005L
Limited Stock
From
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Miami Breaker
5
600
REF2A010
REF2A010
Limited Stock
From
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Miami Breaker
10
600
REF2A010L
REF2A010L
Limited Stock
From
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Miami Breaker
10
600
REF2A015
REF2A015
Limited Stock
From
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Miami Breaker
15
600
REF2A015L
REF2A015L
Limited Stock
From
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Miami Breaker
15
600
REF2A020
REF2A020
Limited Stock
From
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Miami Breaker
20
600
REF2A020L
REF2A020L
Limited Stock
From
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Miami Breaker
20
600
REF2A025
REF2A025
Limited Stock
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Miami Breaker
25
600
REF2A025L
REF2A025L
Limited Stock
From
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Miami Breaker
25
600
REF2A030
REF2A030
Limited Stock
From
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Miami Breaker
30
600
REF2A030L
REF2A030L
Limited Stock
From
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Miami Breaker
30
600
REF2A035
REF2A035
Limited Stock
From
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Miami Breaker
35
600
REF2A035L
REF2A035L
Limited Stock
From
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Miami Breaker
35
600
REF2A040
REF2A040
Limited Stock
From
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Miami Breaker
40
600
REF2A040L
REF2A040L
Limited Stock
From
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Miami Breaker
40
600
REF2A045
REF2A045
Limited Stock
From
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Miami Breaker
45
600
REF2A045L
REF2A045L
Limited Stock
From
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Miami Breaker
45
600
REF2A050
REF2A050
Limited Stock
From
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Miami Breaker
50
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.