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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
Amperage
Voltage
NB1P35H
NB1P35H
Limited Stock
From
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Federal Pacific
35
120
NB1P40
NB1P40
Limited Stock
From
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Federal Pacific
40
120
NB1P40H
NB1P40H
Limited Stock
From
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Federal Pacific
40
120
NB1P45
NB1P45
Limited Stock
From
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American
45
120
NB1P50
NB1P50
Limited Stock
From
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American
50
120
NB1P50H
NB1P50H
Limited Stock
From
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American
50
120
NB1P60
NB1P60
Limited Stock
From
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Federal Pacific
60
120
NB1P60H
NB1P60H
Limited Stock
From
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American
60
120
NB2100H
NB2100H
Limited Stock
From
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American
100
240
NB2110H
NB2110H
Limited Stock
From
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American
110
240
NB220H
NB220H
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From
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Federal Pacific
20
240
NB221015H
NB221015H
Limited Stock
From
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American
15
240
NB221020H
NB221020H
Limited Stock
From
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Federal Pacific
20
240
NB221025H
NB221025H
Limited Stock
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American
25
240
NB221030H
NB221030H
Limited Stock
From
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American
30
240
NB221035H
NB221035H
Limited Stock
From
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American
35
240
NB221040H
NB221040H
Limited Stock
From
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American
40
240
NB221050H
NB221050H
Limited Stock
From
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American
50
240
NB221060H
NB221060H
Limited Stock
From
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Federal Pacific
60
240
NB221070H
NB221070H
Limited Stock
From
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Federal Pacific
70
240
NB221080H
NB221080H
Limited Stock
From
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Federal Pacific
80
240
NB221090H
NB221090H
Limited Stock
From
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Federal Pacific
90
240
NB235
NB235
Limited Stock
From
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American
35
240
NB245
NB245
Limited Stock
From
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Federal Pacific
45
240
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.