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
NF30-KB-3P-3A
NF30-KB-3P-3A
Limited Stock
From
Get Price
Mitsubishi
NF30-SW-3P-30A
NF30-SW-3P-30A
Limited Stock
From
Get Price
Mitsubishi
NF32-SW
NF32-SW
Limited Stock
From
Get Price
Mitsubishi
NF50-SS
NF50-SS
Limited Stock
From
Get Price
Mitsubishi
NF50-SVFU2P20A
NF50-SVFU2P20A
Limited Stock
From
Get Price
Mitsubishi
NF50-SVFU320
NF50-SVFU320
Limited Stock
From
Get Price
Mitsubishi
NF50-SVFU3P40A
NF50-SVFU3P40A
Limited Stock
From
Get Price
Mitsubishi
NF63-SW3P15A
NF63-SW3P15A
Limited Stock
From
Get Price
Mitsubishi
NV-L22MC 2P 15A 100-240V 30MA
NV-L22MC 2P 15A 100-240V 30MA
Limited Stock
From
Get Price
Mitsubishi
NV100-CF/75A
NV100-CF/75A
Limited Stock
From
Get Price
Mitsubishi
NV100-CVFU3080
NV100-CVFU3080
Limited Stock
From
Get Price
Mitsubishi
NV100-CVFU3P60A100
NV100-CVFU3P60A100
Limited Stock
From
Get Price
Mitsubishi
NV100-SP
NV100-SP
Limited Stock
From
Get Price
Mitsubishi
NV100HRU3P60
NV100HRU3P60
Limited Stock
From
Get Price
Mitsubishi
NV125-CV3P75A100
NV125-CV3P75A100
Limited Stock
From
Get Price
Mitsubishi
NV125-SV
NV125-SV
Limited Stock
From
Get Price
Mitsubishi
NV125-SV3P75A30
NV125-SV3P75A30
Limited Stock
From
Get Price
Mitsubishi
NV30-FA-2P-10A
NV30-FA-2P-10A
Limited Stock
From
Get Price
Mitsubishi
NV30-KC
NV30-KC
Limited Stock
From
Get Price
Mitsubishi
NV400-SWU 3P 400A
NV400-SWU 3P 400A
Limited Stock
From
Get Price
Mitsubishi
NV50-CA
NV50-CA
Limited Stock
From
Get Price
Mitsubishi
NV50-CSA-3P-10A
NV50-CSA-3P-10A
Limited Stock
From
Get Price
Mitsubishi
NV50-CSA-3P-30A
NV50-CSA-3P-30A
Limited Stock
From
Get Price
Mitsubishi
NV50-FAU 3P 50A
NV50-FAU 3P 50A
Limited Stock
From
Get Price
Mitsubishi
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.