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
BAB3100HE
BAB3100HE
Limited Stock
From
Get Price
Eaton
100
415
BAB3100HI
BAB3100HI
Limited Stock
From
Get Price
Westinghouse
100
240
BJ21253
BJ21253
Limited Stock
From
Get Price
Bryant
125
240
BJ21503
BJ21503
Limited Stock
From
Get Price
Bryant
150
240
BJ21753
BJ21753
Limited Stock
From
Get Price
Bryant
175
240
BJ22003
BJ22003
Limited Stock
From
Get Price
Westinghouse
200
240
BJ22253
BJ22253
Limited Stock
From
Get Price
Bryant
225
240
BKED100B
BKED100B
Limited Stock
From
Get Price
Eaton
100
240
BKED125T
BKED125T
Limited Stock
From
Get Price
Eaton
125
240
BKED175B
BKED175B
Limited Stock
From
Get Price
Westinghouse
175
240
BKED175T
BKED175T
Limited Stock
From
Get Price
Eaton
175
240
BKED225B
BKED225B
Limited Stock
From
Get Price
Westinghouse
225
240
BKFD100B
BKFD100B
Limited Stock
From
Get Price
Eaton
100
480
BKFD225T
BKFD225T
Limited Stock
From
Get Price
Eaton
225
480
BR3100A
BR3100A
Limited Stock
From
Get Price
Westinghouse
100
240
BR3100AL1
BR3100AL1
Limited Stock
From
Get Price
Westinghouse
100
240
BR3100AL2
BR3100AL2
Limited Stock
From
Get Price
Cutler Hammer
100
240
BR3100CR1
BR3100CR1
Limited Stock
From
Get Price
Westinghouse
100
240
BR325ST
BR325ST
Limited Stock
From
Get Price
Westinghouse
25
240
BR335ST
BR335ST
Limited Stock
From
Get Price
Cutler Hammer
35
240
BR345ST
BR345ST
Limited Stock
From
Get Price
Cutler Hammer
45
240
BR370A
BR370A
Limited Stock
From
Get Price
Bryant
70
240
BR380A
BR380A
Limited Stock
From
Get Price
Westinghouse
80
240
BR390A
BR390A
Limited Stock
From
Get Price
Cutler Hammer
90
240
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.