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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
GWF3100
GWF3100
Limited Stock
From
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Westinghouse
100
600
HFD3070BP10
HFD3070BP10
Limited Stock
From
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Eaton
70
600
HFDE308032C02
HFDE308032C02
Limited Stock
From
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Eaton
80
480
HFWF3016L
HFWF3016L
Limited Stock
From
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Cutler Hammer
16
690
HJD3250KW
HJD3250KW
Limited Stock
From
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Westinghouse
250
600
HLDB3600FT35W
HLDB3600FT35W
Limited Stock
From
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Eaton
600
600
HLDDC3500
HLDDC3500
Limited Stock
From
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Eaton
500
600
JDB3125V
JDB3125V
Limited Stock
From
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Westinghouse
125
600
JG3175S46
JG3175S46
Limited Stock
From
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Westinghouse
175
600
JG3250S41
JG3250S41
Limited Stock
From
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Westinghouse
250
600
JGMPS160G
JGMPS160G
Limited Stock
From
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Westinghouse
160
600
JW3250
JW3250
Limited Stock
From
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Eaton
250
690
KW3400
KW3400
Limited Stock
From
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Westinghouse
400
690
LD3600K
LD3600K
Limited Stock
From
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Cutler Hammer
600
600
NG3900S02
NG3900S02
Limited Stock
From
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Westinghouse
900
600
NW3125T33W
NW3125T33W
Limited Stock
From
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Westinghouse
1250
690
RDC325T35W
RDC325T35W
Limited Stock
From
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Cutler Hammer
2500
600
CRDC316T53W
CRDC316T53W
Limited Stock
From
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Westinghouse
1600
600
CRDC316T54W
CRDC316T54W
Limited Stock
From
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Westinghouse
1600
600
CRDC316T55W
CRDC316T55W
Limited Stock
From
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Westinghouse
1600
600
ELFD3025L
ELFD3025L
Limited Stock
From
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Westinghouse
25
480
ELFD3030L
ELFD3030L
Limited Stock
From
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Eaton
30
480
ELFD3035L
ELFD3035L
Limited Stock
From
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Westinghouse
35
480
ELFD3045L
ELFD3045L
Limited Stock
From
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Cutler Hammer
45
480
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.