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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
REH1B080L
REH1B080L
Limited Stock
From
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Miami Breaker
80
277
REH1B090
REH1B090
Limited Stock
From
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Miami Breaker
90
277
REH1B090L
REH1B090L
Limited Stock
From
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Miami Breaker
90
277
REH1B100
REH1B100
Limited Stock
From
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Miami Breaker
100
277
REH1B100L
REH1B100L
Limited Stock
From
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Miami Breaker
100
277
REH1H003
REH1H003
Limited Stock
From
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Miami Breaker
3
277
REH1H003L
REH1H003L
Limited Stock
From
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Miami Breaker
3
277
REH1H005
REH1H005
Limited Stock
From
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Miami Breaker
5
277
REH1H005L
REH1H005L
Limited Stock
From
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Miami Breaker
5
277
REH1H010
REH1H010
Limited Stock
From
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Miami Breaker
10
277
REH1H010L
REH1H010L
Limited Stock
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Miami Breaker
10
277
REH1H015
REH1H015
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Miami Breaker
15
277
REH1H015L
REH1H015L
Limited Stock
From
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Miami Breaker
15
277
REH1H020
REH1H020
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Miami Breaker
20
277
REH1H020L
REH1H020L
Limited Stock
From
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Miami Breaker
20
277
REH1H025
REH1H025
Limited Stock
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Miami Breaker
25
277
REH1H025L
REH1H025L
Limited Stock
From
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Miami Breaker
25
277
REH1H030
REH1H030
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From
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Miami Breaker
30
277
REH1H030L
REH1H030L
Limited Stock
From
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Miami Breaker
30
277
REH1H035
REH1H035
Limited Stock
From
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Miami Breaker
35
277
REH1H035L
REH1H035L
Limited Stock
From
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Miami Breaker
35
277
REH1H040
REH1H040
Limited Stock
From
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Miami Breaker
40
277
REH1H040L
REH1H040L
Limited Stock
From
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Miami Breaker
40
277
REH1H045
REH1H045
Limited Stock
From
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Miami Breaker
45
277
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.