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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
HKD3300V
HKD3300V
Limited Stock
From
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Eaton
300
600
HKD3350V
HKD3350V
Limited Stock
From
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Eaton
350
600
HMDL3350
HMDL3350
Limited Stock
From
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Eaton
350
600
HMDL3450
HMDL3450
Limited Stock
From
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Westinghouse
450
600
HMDL3500
HMDL3500
Limited Stock
From
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Westinghouse
500
600
LD3125T56W
LD3125T56W
Limited Stock
From
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Westinghouse
125
600
LD3250T56W
LD3250T56W
Limited Stock
From
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Westinghouse
250
600
BAB3100HS1
BAB3100HS1
Limited Stock
From
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Westinghouse
100
240
CHKD3400T106W
CHKD3400T106W
Limited Stock
From
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Eaton
400
600
CLD3600T56W
CLD3600T56W
Limited Stock
From
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Westinghouse
600
600
ED3150BP10
ED3150BP10
Limited Stock
From
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Eaton
150
240
FD3090V
FD3090V
Limited Stock
From
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Eaton
90
600
FDCE322536
FDCE322536
Limited Stock
From
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Eaton
225
480
FG3225
FG3225
Limited Stock
From
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Westinghouse
225
600
GD3100K
GD3100K
Limited Stock
From
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Eaton
100
480
GD3100S4
GD3100S4
Limited Stock
From
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Cutler Hammer
100
480
GMCP060J2C
GMCP060J2C
Limited Stock
From
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Eaton
60
480
HJD3175VW
HJD3175VW
Limited Stock
From
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Westinghouse
175
600
HJD3250C
HJD3250C
Limited Stock
From
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Westinghouse
250
600
HLD3600T56W
HLD3600T56W
Limited Stock
From
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Cutler Hammer
600
600
HMCP015E0C-A10
HMCP015E0C-A10
Limited Stock
From
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Cutler Hammer
15
600
HMCPS150T4
HMCPS150T4
Limited Stock
From
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Eaton
150
600
JD3125V
JD3125V
Limited Stock
From
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Westinghouse
125
600
KD4400
KD4400
Limited Stock
From
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Cutler Hammer
400
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.