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
NF-SF-3040
NF-SF-3040
In Stock
From
$335.72
Mitsubishi
NF-SF-3150
NF-SF-3150
In Stock
From
$260.36
Mitsubishi
NF-SF3015
NF-SF3015
In Stock
From
$76.75
Mitsubishi
NF-SF3020
NF-SF3020
In Stock
From
$31.37
Mitsubishi
NF-SJW3P200A
NF-SJW3P200A
In Stock
From
$387.65
Mitsubishi
NF-SKW3P250A
NF-SKW3P250A
In Stock
From
$428.87
Mitsubishi
NF100-CB-3P-60A
NF100-CB-3P-60A
Limited Stock
From
Get Price
Mitsubishi
NF100-CB-3P-75A
NF100-CB-3P-75A
In Stock
From
$222.26
Mitsubishi
NF100-CP-3P-100A
NF100-CP-3P-100A
In Stock
From
$27.95
Mitsubishi
NF100-CP-3P-60A
NF100-CP-3P-60A
In Stock
From
$346.02
Mitsubishi
NF100-CS-3P-100A
NF100-CS-3P-100A
In Stock
From
$531.09
Mitsubishi
NF100-CVFU2P90A
NF100-CVFU2P90A
In Stock
From
$465.19
Mitsubishi
NF100-CVFU3P90A
NF100-CVFU3P90A
In Stock
From
$489.72
Mitsubishi
NF100-CWU2050
NF100-CWU2050
In Stock
From
$83.74
Mitsubishi
NF100-FHU-60A
NF100-FHU-60A
In Stock
From
$252.29
Mitsubishi
NF100-FHU-75A
NF100-FHU-75A
In Stock
From
$288.35
Mitsubishi
NF100-HRU3010
NF100-HRU3010
In Stock
From
$171.57
Mitsubishi
NF100-HRU3020
NF100-HRU3020
In Stock
From
$506.46
Mitsubishi
NF100-HRU3P15A
NF100-HRU3P15A
In Stock
From
$368.87
Mitsubishi
NF100-HRU3P3A
NF100-HRU3P3A
In Stock
From
$165.07
Mitsubishi
NF100-KC3P60A
NF100-KC3P60A
Limited Stock
From
Get Price
Mitsubishi
NF100-S-3P-60A
NF100-S-3P-60A
In Stock
From
$239.85
Mitsubishi
NF100-SP-2P-50A
NF100-SP-2P-50A
In Stock
From
$106.75
Mitsubishi
NF100-SRU2010
NF100-SRU2010
In Stock
From
$114.13
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.