1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
REE1B010
REE1B010
Limited Stock
From
Get Price
Miami Breaker
10
120
REE1B010L
REE1B010L
Limited Stock
From
Get Price
Miami Breaker
10
120
REE1B015
REE1B015
Limited Stock
From
Get Price
Miami Breaker
15
120
REE1B015L
REE1B015L
Limited Stock
From
Get Price
Miami Breaker
15
120
REE1B020
REE1B020
Limited Stock
From
Get Price
Miami Breaker
20
120
REE1B020L
REE1B020L
Limited Stock
From
Get Price
Miami Breaker
20
120
REE1B025
REE1B025
Limited Stock
From
Get Price
Miami Breaker
25
120
REE1B025L
REE1B025L
Limited Stock
From
Get Price
Miami Breaker
25
120
REE1B030
REE1B030
Limited Stock
From
Get Price
Miami Breaker
30
120
REE1B030L
REE1B030L
Limited Stock
From
Get Price
Miami Breaker
30
120
REE1B035
REE1B035
Limited Stock
From
Get Price
Miami Breaker
35
120
REE1B035L
REE1B035L
Limited Stock
From
Get Price
Miami Breaker
35
120
REE1B040
REE1B040
Limited Stock
From
Get Price
Miami Breaker
40
120
REE1B040L
REE1B040L
Limited Stock
From
Get Price
Miami Breaker
40
120
REE1B045
REE1B045
Limited Stock
From
Get Price
Miami Breaker
45
120
REE1B045L
REE1B045L
Limited Stock
From
Get Price
Miami Breaker
45
120
REE1B050
REE1B050
Limited Stock
From
Get Price
Miami Breaker
50
120
REE1B050L
REE1B050L
Limited Stock
From
Get Price
Miami Breaker
50
120
REE1B060
REE1B060
Limited Stock
From
Get Price
Miami Breaker
60
120
REE1B060L
REE1B060L
Limited Stock
From
Get Price
Miami Breaker
60
120
REE1B070
REE1B070
Limited Stock
From
Get Price
Miami Breaker
70
120
REE1B070L
REE1B070L
Limited Stock
From
Get Price
Miami Breaker
70
120
REE1B080
REE1B080
Limited Stock
From
Get Price
Miami Breaker
80
120
REE1B080L
REE1B080L
Limited Stock
From
Get Price
Miami Breaker
80
120
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.