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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
NF-SF-3070
NF-SF-3070
In Stock
From
$488.27
Mitsubishi
70
600
NF100-CVFU3P90A
NF100-CVFU3P90A
In Stock
From
$489.72
Mitsubishi
-
-
NF100-S-3P-50A
NF100-S-3P-50A
In Stock
From
$279.24
Mitsubishi
-
-
NF100-SP-3P-50A
NF100-SP-3P-50A
In Stock
From
$81.69
Mitsubishi
-
-
NF100-SWU-3P-75A
NF100-SWU-3P-75A
In Stock
From
$160.02
Mitsubishi
-
-
NF125-SVU3P100AS
NF125-SVU3P100AS
In Stock
From
$442.18
Mitsubishi
-
-
NF225-CS
NF225-CS
In Stock
From
$605.92
Mitsubishi
-
-
NF225-S-3P-225A
NF225-S-3P-225A
In Stock
From
$356.40
Mitsubishi
-
-
NF30-CS-2P-20A
NF30-CS-2P-20A
In Stock
From
$42.60
Mitsubishi
-
-
NF30-CS-2P-3A
NF30-CS-2P-3A
In Stock
From
$38.29
Mitsubishi
-
-
NF30-SP-3P-30A
NF30-SP-3P-30A
In Stock
From
$121.70
Mitsubishi
-
-
NF30-SS-3P-15A
NF30-SS-3P-15A
In Stock
From
$41.22
Mitsubishi
-
-
NF30-SW-3P-5A
NF30-SW-3P-5A
Limited Stock
From
Get Price
Mitsubishi
-
-
NF32-SW-3P-20A-AX-1LS
NF32-SW-3P-20A-AX-1LS
In Stock
From
$142.03
Mitsubishi
-
-
NF50-CP-3P-15A
NF50-CP-3P-15A
In Stock
From
$22.75
Mitsubishi
-
-
NF50-CP-3P-50A
NF50-CP-3P-50A
In Stock
From
$140.69
Mitsubishi
-
-
NF50-CS
NF50-CS
In Stock
From
$38.85
Mitsubishi
-
-
NF50-HR
NF50-HR
In Stock
From
$68.50
Mitsubishi
-
-
NF50-SMU1P10A
NF50-SMU1P10A
In Stock
From
$98.70
Mitsubishi
-
-
NF50-SMU2P25A
NF50-SMU2P25A
In Stock
From
$107.47
Mitsubishi
-
-
NF50-SS/40
NF50-SS/40
In Stock
From
$159.98
Mitsubishi
-
-
NF50-SS/50
NF50-SS/50
In Stock
From
$96.31
Mitsubishi
-
-
NF50-SVFU3P30A
NF50-SVFU3P30A
In Stock
From
$166.90
Mitsubishi
-
-
NF63-CV3P40A
NF63-CV3P40A
In Stock
From
$45.54
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.