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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
GI1070
GI1070
Limited Stock
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Cutler Hammer
70
480
GI1125
GI1125
Limited Stock
From
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Cutler Hammer
125
480
HBAX1040
HBAX1040
Limited Stock
From
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Cutler Hammer
40
240
HBAX1045
HBAX1045
Limited Stock
From
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Cutler Hammer
45
240
HBAX1050
HBAX1050
Limited Stock
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Cutler Hammer
50
240
HBAX1055
HBAX1055
Limited Stock
From
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Cutler Hammer
55
240
HBAX1060
HBAX1060
Limited Stock
From
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Cutler Hammer
60
240
HMCP100L3W
HMCP100L3W
Limited Stock
From
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Eaton
100
-
HMCPS050K2
HMCPS050K2
Limited Stock
From
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Eaton
50
-
HQNB3040
HQNB3040
Limited Stock
From
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Westinghouse
40
240
HQNBA3070
HQNBA3070
Limited Stock
From
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Westinghouse
70
240
HQNP2020
HQNP2020
Limited Stock
From
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Cutler Hammer
20
240
HQNPL1020
HQNPL1020
Limited Stock
From
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Cutler Hammer
20
120
HQP1015D
HQP1015D
Limited Stock
From
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Cutler Hammer
15
120
HQP1020D
HQP1020D
Limited Stock
From
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Cutler Hammer
20
120
HQP1035
HQP1035
Limited Stock
From
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Cutler Hammer
35
120
HQP1045
HQP1045
Limited Stock
From
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Cutler Hammer
45
120
HQP2010
HQP2010
Limited Stock
From
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Cutler Hammer
10
240
HQP2015H
HQP2015H
Limited Stock
From
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Cutler Hammer
15
240
HQP2020B
HQP2020B
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From
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Cutler Hammer
20
240
HQP2025H
HQP2025H
Limited Stock
From
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Cutler Hammer
25
240
HQP2030D
HQP2030D
Limited Stock
From
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Cutler Hammer
30
240
HQP2040D
HQP2040D
Limited Stock
From
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Cutler Hammer
40
240
HQP2050D
HQP2050D
Limited Stock
From
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Cutler Hammer
50
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.