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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
NEG3C080B
NEG3C080B
Limited Stock
From
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Siemens
80
600
NEG3C090
NEG3C090
Limited Stock
From
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Siemens
90
600
NEG3C090B
NEG3C090B
Limited Stock
From
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Siemens
90
600
NEG3C100
NEG3C100
Limited Stock
From
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Siemens
100
600
NEG3C100B
NEG3C100B
Limited Stock
From
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Siemens
100
600
NEG3C110
NEG3C110
Limited Stock
From
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Siemens
110
600
NEG3C110B
NEG3C110B
Limited Stock
From
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Siemens
110
600
NEG3C125
NEG3C125
Limited Stock
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Siemens
125
600
NEG3C125B
NEG3C125B
Limited Stock
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Siemens
125
600
Q115HH00S01
Q115HH00S01
Limited Stock
From
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Siemens
15
120
Q115HH00S07
Q115HH00S07
Limited Stock
From
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Siemens
15
120
Q115HH01
Q115HH01
Limited Stock
From
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Siemens
15
120
Q130HH00S07
Q130HH00S07
Limited Stock
From
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Siemens
30
120
Q130HH01
Q130HH01
Limited Stock
From
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Siemens
30
120
Q150HH00S07
Q150HH00S07
Limited Stock
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Siemens
50
120
QF115AF
QF115AF
Limited Stock
From
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Siemens
15
120
QJ2H150
QJ2H150
Limited Stock
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Siemens
150
240
QJ2H225
QJ2H225
Limited Stock
From
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Siemens
225
240
SMD69600
SMD69600
Limited Stock
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Siemens
600
600
SMD69600G
SMD69600G
Limited Stock
From
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Siemens
600
600
SMD69600NGT
SMD69600NGT
Limited Stock
From
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Siemens
600
600
SMD69700
SMD69700
Limited Stock
From
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Siemens
700
600
SMD69700G
SMD69700G
Limited Stock
From
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Siemens
700
600
SMD69700NGT
SMD69700NGT
Limited Stock
From
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Siemens
700
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.