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
HQ2125BH
HQ2125BH
Limited Stock
From
Get Price
Siemens
125
240
HQ2225BH
HQ2225BH
Limited Stock
From
Get Price
Siemens
225
240
HQS2125H
HQS2125H
Limited Stock
From
Get Price
Siemens
125
240
HQS2150H
HQS2150H
Limited Stock
From
Get Price
Siemens
150
240
HQS2175H
HQS2175H
Limited Stock
From
Get Price
Siemens
175
240
HQS2200H
HQS2200H
Limited Stock
From
Get Price
Siemens
200
240
HQS2225H
HQS2225H
Limited Stock
From
Get Price
Siemens
225
240
JXD23B200H
JXD23B200H
Limited Stock
From
Get Price
Siemens
200
240
LGG1B015L
LGG1B015L
Limited Stock
From
Get Price
Siemens
15
347
LGG1B020L
LGG1B020L
Limited Stock
From
Get Price
Siemens
20
347
LGG1B025L
LGG1B025L
Limited Stock
From
Get Price
Siemens
25
347
LGG1B030L
LGG1B030L
Limited Stock
From
Get Price
Siemens
30
347
LGG1B035L
LGG1B035L
Limited Stock
From
Get Price
Siemens
35
347
LGG1B040L
LGG1B040L
Limited Stock
From
Get Price
Siemens
40
347
LGG1B045L
LGG1B045L
Limited Stock
From
Get Price
Siemens
45
347
LGG1B050L
LGG1B050L
Limited Stock
From
Get Price
Siemens
50
347
LGG1B060L
LGG1B060L
Limited Stock
From
Get Price
Siemens
60
347
LGG1B070L
LGG1B070L
Limited Stock
From
Get Price
Siemens
70
347
LGG1B080L
LGG1B080L
Limited Stock
From
Get Price
Siemens
80
347
LGG1B090L
LGG1B090L
Limited Stock
From
Get Price
Siemens
90
347
LGG1B100L
LGG1B100L
Limited Stock
From
Get Price
Siemens
100
347
LGG1B110L
LGG1B110L
Limited Stock
From
Get Price
Siemens
110
347
LGG1B125L
LGG1B125L
Limited Stock
From
Get Price
Siemens
125
347
MBKJD1300
MBKJD1300
Limited Stock
From
Get Price
Siemens
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.