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
HMCP003A0WH09
HMCP003A0WH09
Limited Stock
From
Get Price
Westinghouse
3
600
HNW3125WK
HNW3125WK
Limited Stock
From
Get Price
Eaton
1250
690
HNW3800WK
HNW3800WK
Limited Stock
From
Get Price
Cutler Hammer
800
690
HNW4125WK
HNW4125WK
Limited Stock
From
Get Price
Eaton
1250
690
HQC3050
HQC3050
Limited Stock
From
Get Price
Westinghouse
50
240
JGMPH160G
JGMPH160G
Limited Stock
From
Get Price
Westinghouse
160
600
QCL2020
QCL2020
Limited Stock
From
Get Price
Westinghouse
20
240
WFP2150
WFP2150
Limited Stock
From
Get Price
Westinghouse
150
240
WFP2200
WFP2200
Limited Stock
From
Get Price
Westinghouse
200
240
WFP2200LNP
WFP2200LNP
Limited Stock
From
Get Price
Westinghouse
200
240
WFPH2150T2
WFPH2150T2
Limited Stock
From
Get Price
Westinghouse
150
240
2603D50G07
2603D50G07
Limited Stock
From
Get Price
Westinghouse
250
600
2603D50G08
2603D50G08
Limited Stock
From
Get Price
Westinghouse
300
600
2603D50G09
2603D50G09
Limited Stock
From
Get Price
Westinghouse
350
600
2603D50G10
2603D50G10
Limited Stock
From
Get Price
Westinghouse
400
600
2603D50G13
2603D50G13
Limited Stock
From
Get Price
Westinghouse
250
600
2603D50G14
2603D50G14
Limited Stock
From
Get Price
Westinghouse
300
600
2603D50G15
2603D50G15
Limited Stock
From
Get Price
Westinghouse
350
600
2603D50G16
2603D50G16
Limited Stock
From
Get Price
Westinghouse
400
600
2603D50G19
2603D50G19
Limited Stock
From
Get Price
Westinghouse
250
600
2603D50G20
2603D50G20
Limited Stock
From
Get Price
Westinghouse
300
600
2603D50G21
2603D50G21
Limited Stock
From
Get Price
Westinghouse
350
600
2603D50G22
2603D50G22
Limited Stock
From
Get Price
Westinghouse
400
600
314C636G26
314C636G26
Limited Stock
From
Get Price
Westinghouse
300
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.