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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
QNBL2035
QNBL2035
Limited Stock
From
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Westinghouse
35
240
QNP3025
QNP3025
Limited Stock
From
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Westinghouse
25
240
QNP3030
QNP3030
Limited Stock
From
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Westinghouse
30
240
QNP3060
QNP3060
Limited Stock
From
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Westinghouse
60
240
QNP3070
QNP3070
Limited Stock
From
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Westinghouse
70
240
QNP3080
QNP3080
Limited Stock
From
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Westinghouse
80
240
QNP3090
QNP3090
Limited Stock
From
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Westinghouse
90
240
QNP3100
QNP3100
Limited Stock
From
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Westinghouse
100
240
QNPL1010
QNPL1010
Limited Stock
From
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Westinghouse
10
240
QNPL1060
QNPL1060
Limited Stock
From
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Westinghouse
60
240
QNPL1070
QNPL1070
Limited Stock
From
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Westinghouse
70
240
QNPL3025
QNPL3025
Limited Stock
From
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Westinghouse
25
240
QNPL3035
QNPL3035
Limited Stock
From
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Westinghouse
35
240
QNPL3040
QNPL3040
Limited Stock
From
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Westinghouse
40
240
QNPL3060
QNPL3060
Limited Stock
From
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Westinghouse
60
240
QNPL3070
QNPL3070
Limited Stock
From
Get Price
Westinghouse
70
240
QNPL3080
QNPL3080
Limited Stock
From
Get Price
Westinghouse
80
240
QNPL3090
QNPL3090
Limited Stock
From
Get Price
Westinghouse
90
240
QNPL3100
QNPL3100
Limited Stock
From
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Westinghouse
100
240
QO215EPD1200
QO215EPD1200
Limited Stock
From
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Square D
15
240
QO215GFI1200
QO215GFI1200
Limited Stock
From
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Square D
15
120
QO215GFI2100
QO215GFI2100
Limited Stock
From
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Square D
15
120
QO220GFI1200
QO220GFI1200
Limited Stock
From
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Square D
20
120
QO220GFI1201
QO220GFI1201
Limited Stock
From
Get Price
Square D
20
120
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.