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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
HMCP015E0W
HMCP015E0W
In Stock
From
$334.79
Eaton
15
600
HMCP030H1
HMCP030H1
In Stock
From
$280.07
Eaton
30
600
HMCP030H1C
HMCP030H1C
In Stock
From
$239.88
Eaton
30
600
HMCP050G2C
HMCP050G2C
In Stock
From
$536.00
Eaton
50
600
HMCP050K2
HMCP050K2
In Stock
From
$320.71
Eaton
50
600
HMCP070J2C
HMCP070J2C
In Stock
From
$636.00
Eaton
70
600
HMCP100L3
HMCP100L3
In Stock
From
$313.95
Eaton
100
600
HMCP100L3C
HMCP100L3C
In Stock
From
$774.37
Eaton
100
600
HMCP100R3C
HMCP100R3C
In Stock
From
$219.48
Eaton
100
600
HMCP100R3C-A02
HMCP100R3C-A02
In Stock
From
$1,135.20
Cutler Hammer
100
600
HMCP150U4
HMCP150U4
In Stock
From
$780.78
Eaton
150
600
HMCP150U4C
HMCP150U4C
In Stock
From
$436.66
Eaton
150
600
HMCP150U4C-A05
HMCP150U4C-A05
In Stock
From
$413.73
Eaton
150
600
HMCP250A5
HMCP250A5
In Stock
From
$1,154.89
Eaton
250
600
HMCP250A5CA05
HMCP250A5CA05
In Stock
From
$528.50
Eaton
250
600
HMCP250F5C
HMCP250F5C
In Stock
From
$1,310.62
Eaton
250
600
HMCP250J5
HMCP250J5
In Stock
From
$1,160.59
Eaton
250
600
HMCP250K5
HMCP250K5
In Stock
From
$420.68
Eaton
250
600
HMCP250L5C
HMCP250L5C
In Stock
From
$1,904.34
Eaton
250
600
HMCP250W5
HMCP250W5
In Stock
From
$1,894.19
Eaton
250
600
HMCP400D5W
HMCP400D5W
In Stock
From
$1,821.17
Eaton
400
600
HMCP400N5
HMCP400N5
In Stock
From
$2,013.60
Eaton
400
600
HMCP400R5
HMCP400R5
In Stock
From
$1,468.78
Eaton
400
600
HMCP400W5
HMCP400W5
In Stock
From
$1,447.55
Eaton
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.