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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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
HFB3015
HFB3015
In Stock
From
$188.63
Cutler Hammer
15
600
HFB3015V
HFB3015V
In Stock
From
$627.21
Westinghouse
15
600
HFB3020
HFB3020
In Stock
From
$220.42
Cutler Hammer
20
600
HFB3020L
HFB3020L
In Stock
From
$146.51
Cutler Hammer
20
600
HFB3030
HFB3030
In Stock
From
$267.50
Cutler Hammer
30
600
HFB3030L
HFB3030L
In Stock
From
$155.65
Cutler Hammer
30
600
HFB3040
HFB3040
In Stock
From
$189.94
Cutler Hammer
40
600
HFB3050
HFB3050
In Stock
From
$335.08
Cutler Hammer
50
600
HFB3050L
HFB3050L
In Stock
From
$121.34
Cutler Hammer
50
600
HFB3060
HFB3060
In Stock
From
$113.60
Cutler Hammer
60
600
HFB3080
HFB3080
In Stock
From
$186.07
Westinghouse
80
600
HFB3080L
HFB3080L
In Stock
From
Get Price
Westinghouse
80
600
HFB3100
HFB3100
In Stock
From
$575.11
Cutler Hammer
100
600
HFB3110
HFB3110
In Stock
From
$169.57
Westinghouse
110
600
HFB3110ML
HFB3110ML
In Stock
From
$481.51
Cutler Hammer
10
600
HFB3125
HFB3125
In Stock
From
$267.00
Cutler Hammer
125
600
HFB3150
HFB3150
In Stock
From
$486.80
Cutler Hammer
150
600
HFB3270ML
HFB3270ML
In Stock
From
$36.96
Westinghouse
30
600
HFD1015BP10
HFD1015BP10
In Stock
From
$273.95
Eaton
15
277
HFD1020BP10
HFD1020BP10
In Stock
From
$179.87
Eaton
20
277
HFD1040L
HFD1040L
In Stock
From
$356.63
Eaton
40
277
HFD1045L
HFD1045L
In Stock
From
$92.12
Eaton
45
277
HFD1060L
HFD1060L
In Stock
From
$211.73
Eaton
60
277
HFD1070L
HFD1070L
In Stock
From
$343.09
Eaton
70
277
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.