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
HLDDC3600WK
HLDDC3600WK
Limited Stock
From
Get Price
Eaton
600
600
HLW2630F
HLW2630F
Limited Stock
From
Get Price
Cutler Hammer
630
690
HLW3315
HLW3315
Limited Stock
From
Get Price
Westinghouse
315
690
HLW3400
HLW3400
Limited Stock
From
Get Price
Westinghouse
400
690
HLW3500
HLW3500
Limited Stock
From
Get Price
Westinghouse
500
690
HLW3630
HLW3630
Limited Stock
From
Get Price
Westinghouse
630
690
HLW3630WK
HLW3630WK
Limited Stock
From
Get Price
Westinghouse
630
690
HLW4315
HLW4315
Limited Stock
From
Get Price
Cutler Hammer
315
690
HLW4500
HLW4500
Limited Stock
From
Get Price
Westinghouse
500
690
HLW4630
HLW4630
Limited Stock
From
Get Price
Westinghouse
630
690
HLW4630WK
HLW4630WK
Limited Stock
From
Get Price
Westinghouse
630
690
HM2P250A5
HM2P250A5
Limited Stock
From
Get Price
Eaton
250
600
HM2P250A5C
HM2P250A5C
Limited Stock
From
Get Price
Eaton
250
600
HM2P250C5C
HM2P250C5C
Limited Stock
From
Get Price
Eaton
250
600
HM2P250D5
HM2P250D5
Limited Stock
From
Get Price
Eaton
250
600
HM2P250D5C
HM2P250D5C
Limited Stock
From
Get Price
Eaton
250
600
HM2P250J5
HM2P250J5
Limited Stock
From
Get Price
Eaton
250
600
HM2P250L5
HM2P250L5
Limited Stock
From
Get Price
Eaton
250
600
HM2P250L5C
HM2P250L5C
Limited Stock
From
Get Price
Eaton
250
600
HMCPS007C0
HMCPS007C0
Limited Stock
From
Get Price
Eaton
7
600
HMCPS030H1
HMCPS030H1
Limited Stock
From
Get Price
Eaton
30
600
HMDL3800P
HMDL3800P
Limited Stock
From
Get Price
Eaton
800
600
HMDLB3400
HMDLB3400
Limited Stock
From
Get Price
Westinghouse
400
600
HMDLB3800
HMDLB3800
Limited Stock
From
Get Price
Eaton
800
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.