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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.
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Part Number
PRICE
Manufacturer
NF125-SGV3P45.63A
NF125-SGV3P45.63A
In Stock
From
$214.12
Mitsubishi
NF125-SV3P100A
NF125-SV3P100A
Limited Stock
From
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Mitsubishi
NF125-SV3P63A
NF125-SV3P63A
In Stock
From
$90.55
Mitsubishi
NF125-SVU3P20AS
NF125-SVU3P20AS
In Stock
From
$723.16
Mitsubishi
NF125-SVU3P50AS
NF125-SVU3P50AS
In Stock
From
$708.01
Mitsubishi
NF125-SVU3P60AS
NF125-SVU3P60AS
In Stock
From
$626.21
Mitsubishi
NF125-SW-3P-100A
NF125-SW-3P-100A
Limited Stock
From
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Mitsubishi
NF125-SW-3P-75AMP
NF125-SW-3P-75AMP
Limited Stock
From
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Mitsubishi
NF225-CP-3P-125A
NF225-CP-3P-125A
In Stock
From
$200.49
Mitsubishi
NF225-CP-3P-150A
NF225-CP-3P-150A
In Stock
From
$542.17
Mitsubishi
NF225-CP-3P-175A
NF225-CP-3P-175A
In Stock
From
$324.29
Mitsubishi
NF225-CS-2P-125A
NF225-CS-2P-125A
In Stock
From
$275.12
Mitsubishi
NF225-CS-3P-150A
NF225-CS-3P-150A
In Stock
From
$194.24
Mitsubishi
NF225-S-3P-225A
NF225-S-3P-225A
In Stock
From
$313.64
Mitsubishi
NF225S-3P-125A
NF225S-3P-125A
In Stock
From
$245.11
Mitsubishi
NF250-CV2P125A
NF250-CV2P125A
In Stock
From
$225.59
Mitsubishi
NF250-CV3P125A
NF250-CV3P125A
Limited Stock
From
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Mitsubishi
NF250-CV3P175A
NF250-CV3P175A
In Stock
From
$150.11
Mitsubishi
NF250-HV3P175A
NF250-HV3P175A
In Stock
From
$190.89
Mitsubishi
NF250-SE-4P-250A
NF250-SE-4P-250A
In Stock
From
$353.17
Mitsubishi
NF250-SVU3P200A
NF250-SVU3P200A
In Stock
From
$423.03
Mitsubishi
NF250-SVU3P200AY
NF250-SVU3P200AY
In Stock
From
$613.08
Mitsubishi
NF30-CB-30A
NF30-CB-30A
In Stock
From
$21.00
Mitsubishi
NF30-CB-3P-15A
NF30-CB-3P-15A
Limited Stock
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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.