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
HMCPS150T4
HMCPS150T4
Limited Stock
From
Get Price
Eaton
150
600
HMCPS150U4
HMCPS150U4
Limited Stock
From
Get Price
Eaton
150
600
HMDL3400V
HMDL3400V
Limited Stock
From
Get Price
Cutler Hammer
400
600
HMDL3400VW
HMDL3400VW
Limited Stock
From
Get Price
Eaton
400
600
HMDL3600V
HMDL3600V
Limited Stock
From
Get Price
Cutler Hammer
600
600
HMDL3600VW
HMDL3600VW
Limited Stock
From
Get Price
Westinghouse
600
600
HMDL3700V
HMDL3700V
Limited Stock
From
Get Price
Westinghouse
700
600
HMDL3700VW
HMDL3700VW
Limited Stock
From
Get Price
Westinghouse
700
600
HMDL3800V
HMDL3800V
Limited Stock
From
Get Price
Westinghouse
800
600
JD3070V
JD3070V
Limited Stock
From
Get Price
Westinghouse
70
600
JD3100V
JD3100V
Limited Stock
From
Get Price
Eaton
100
600
JD3100VW
JD3100VW
Limited Stock
From
Get Price
Westinghouse
100
600
JD3125V
JD3125V
Limited Stock
From
Get Price
Westinghouse
125
600
JD3150V
JD3150V
Limited Stock
From
Get Price
Westinghouse
150
600
JD3175V
JD3175V
Limited Stock
From
Get Price
Westinghouse
175
600
JD3200S41
JD3200S41
Limited Stock
From
Get Price
Westinghouse
200
600
JD3200V
JD3200V
Limited Stock
From
Get Price
Westinghouse
200
600
JD3225V
JD3225V
Limited Stock
From
Get Price
Westinghouse
225
600
JD3225W
JD3225W
Limited Stock
From
Get Price
Cutler Hammer
225
600
JD3225Y
JD3225Y
Limited Stock
From
Get Price
Westinghouse
225
600
JD3250S41
JD3250S41
Limited Stock
From
Get Price
Eaton
250
600
JD3250V
JD3250V
Limited Stock
From
Get Price
Westinghouse
250
600
JD3250Y
JD3250Y
Limited Stock
From
Get Price
Cutler Hammer
250
600
JD4200
JD4200
Limited Stock
From
Get Price
Eaton
200
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.