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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
NEG2B110L
NEG2B110L
Limited Stock
From
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Siemens
110
600
NEG2B125
NEG2B125
Limited Stock
From
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Siemens
125
600
NEG2B125B
NEG2B125B
Limited Stock
From
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Siemens
125
600
NEG2B125L
NEG2B125L
Limited Stock
From
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Siemens
125
600
NEG2C015L
NEG2C015L
Limited Stock
From
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Siemens
15
600
NEG2C020L
NEG2C020L
Limited Stock
From
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Siemens
20
600
NEG2C025L
NEG2C025L
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From
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Siemens
25
600
NEG2C030L
NEG2C030L
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From
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Siemens
30
600
NEG2C035L
NEG2C035L
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Siemens
35
600
NEG2C040L
NEG2C040L
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Siemens
40
600
NEG2C050L
NEG2C050L
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Siemens
50
600
NEG2C060L
NEG2C060L
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Siemens
60
600
NEG2C070L
NEG2C070L
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Siemens
70
600
NEG2C080L
NEG2C080L
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Siemens
80
600
NEG2C090L
NEG2C090L
Limited Stock
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Siemens
90
600
NEG2C100L
NEG2C100L
Limited Stock
From
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Siemens
100
600
NEG2C110L
NEG2C110L
Limited Stock
From
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Siemens
110
600
NEG2C125L
NEG2C125L
Limited Stock
From
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Siemens
125
600
NEG3B015
NEG3B015
Limited Stock
From
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Siemens
15
600
NEG3B015B
NEG3B015B
Limited Stock
From
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Siemens
15
600
NEG3B020B
NEG3B020B
Limited Stock
From
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Siemens
20
600
NEG3B025B
NEG3B025B
Limited Stock
From
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Siemens
25
600
NEG3B030
NEG3B030
Limited Stock
From
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Siemens
30
600
NEG3B030B
NEG3B030B
Limited Stock
From
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Siemens
30
600
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.