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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
NEB1B080
NEB1B080
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Siemens
80
277
NEB1B080B
NEB1B080B
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Siemens
80
277
NEB1B080L
NEB1B080L
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Siemens
80
277
NEB1B080V
NEB1B080V
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Siemens
80
277
NEB1B090
NEB1B090
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Siemens
90
277
NEB1B090B
NEB1B090B
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Siemens
90
277
NEB1B090L
NEB1B090L
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Siemens
90
277
NEB1B090V
NEB1B090V
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Siemens
90
277
NEB1B100
NEB1B100
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Siemens
100
277
NEB1B100B
NEB1B100B
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Siemens
100
277
NEB1B100L
NEB1B100L
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Siemens
100
277
NEB1B100V
NEB1B100V
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Siemens
100
277
NEB1B110
NEB1B110
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Siemens
110
277
NEB1B110B
NEB1B110B
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Siemens
110
277
NEB1B110L
NEB1B110L
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Siemens
110
277
NEB1B110V
NEB1B110V
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Siemens
110
277
NEB1B125
NEB1B125
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Siemens
125
277
NEB1B125B
NEB1B125B
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Siemens
125
277
NEB1B125L
NEB1B125L
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Siemens
125
277
NEB1B125V
NEB1B125V
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Siemens
125
277
NEB1M015
NEB1M015
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Siemens
15
277
NEB1M015B
NEB1M015B
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Siemens
15
277
NEB1M015L
NEB1M015L
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Siemens
15
277
NEB1M020
NEB1M020
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Siemens
20
277
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.