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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
HQNPA3020
HQNPA3020
Limited Stock
From
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Cutler Hammer
20
240
HQNPA3030
HQNPA3030
Limited Stock
From
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Cutler Hammer
30
240
HQNPA3050
HQNPA3050
Limited Stock
From
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Cutler Hammer
50
240
HQNPA3080
HQNPA3080
Limited Stock
From
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Cutler Hammer
80
240
HQNPL3060
HQNPL3060
Limited Stock
From
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Cutler Hammer
60
240
HQNPL3070
HQNPL3070
Limited Stock
From
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Cutler Hammer
70
240
HQNPL3080
HQNPL3080
Limited Stock
From
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Cutler Hammer
80
240
HQNPL3090
HQNPL3090
Limited Stock
From
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Cutler Hammer
90
240
HQNPL3100
HQNPL3100
Limited Stock
From
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Cutler Hammer
100
240
HQP1025D
HQP1025D
Limited Stock
From
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Cutler Hammer
25
120
HQP1030D
HQP1030D
Limited Stock
From
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Cutler Hammer
30
120
HQP1035D
HQP1035D
Limited Stock
From
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Cutler Hammer
35
120
HQP1040D
HQP1040D
Limited Stock
From
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Cutler Hammer
40
120
HQP1050D
HQP1050D
Limited Stock
From
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Cutler Hammer
50
120
HQP1050N
HQP1050N
Limited Stock
From
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Cutler Hammer
50
240
HQP1060D
HQP1060D
Limited Stock
From
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Cutler Hammer
60
120
HQP1060N
HQP1060N
Limited Stock
From
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Cutler Hammer
60
240
HQP1100N
HQP1100N
Limited Stock
From
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Cutler Hammer
100
240
HQP2010B
HQP2010B
Limited Stock
From
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Cutler Hammer
10
240
HQP2025B
HQP2025B
Limited Stock
From
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Cutler Hammer
25
240
HQP2035H
HQP2035H
Limited Stock
From
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Cutler Hammer
35
240
HQP2045H
HQP2045H
Limited Stock
From
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Cutler Hammer
45
240
HQP2050N
HQP2050N
Limited Stock
From
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Cutler Hammer
50
240
HQP2055H
HQP2055H
Limited Stock
From
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Cutler Hammer
55
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.