1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
HLD3500W
HLD3500W
In Stock
From
$3,132.45
Cutler Hammer
500
600
HLD3600A06
HLD3600A06
In Stock
From
$5,559.72
Eaton
600
600
HLD3600T107W
HLD3600T107W
In Stock
From
$3,873.90
Eaton
600
600
HLD3600T57WPN
HLD3600T57WPN
In Stock
From
$8,105.40
Westinghouse
600
600
HLD3600V
HLD3600V
In Stock
From
$17,935.59
Eaton
600
600
HLD3600VW
HLD3600VW
In Stock
From
$3,474.26
Eaton
600
600
HLD3600W
HLD3600W
In Stock
From
$2,662.67
Eaton
600
600
HLD3600X
HLD3600X
In Stock
From
$2,153.58
Eaton
600
600
HLDB3300
HLDB3300
In Stock
From
$1,899.78
Westinghouse
300
600
HLDB3350
HLDB3350
In Stock
From
$2,827.45
Westinghouse
350
600
HLDB3400
HLDB3400
In Stock
From
$2,840.76
Westinghouse
400
600
HLDB3450
HLDB3450
In Stock
From
$2,847.58
Westinghouse
450
600
HLDB3600
HLDB3600
In Stock
From
$5,294.98
Eaton
600
600
HMCP003A0C
HMCP003A0C
In Stock
From
$372.09
Eaton
3
600
HMCP003A0C-A01
HMCP003A0C-A01
In Stock
From
$916.34
Eaton
3
600
HMCP003A0C-A02
HMCP003A0C-A02
In Stock
From
$719.31
Westinghouse
3
600
HMCP003A0C-A12
HMCP003A0C-A12
In Stock
From
$666.67
Westinghouse
3
600
HMCP003A0W
HMCP003A0W
In Stock
From
$243.29
Eaton
3
600
HMCP003A0X
HMCP003A0X
In Stock
From
$298.75
Eaton
3
600
HMCP007C0C
HMCP007C0C
In Stock
From
$425.81
Eaton
7
600
HMCP007C0C-A02
HMCP007C0C-A02
In Stock
From
$145.20
Westinghouse
7
600
HMCP007C0S06
HMCP007C0S06
In Stock
From
$1,281.32
Eaton
7
600
HMCP007C0W
HMCP007C0W
In Stock
From
$531.61
Eaton
7
600
HMCP007C0X
HMCP007C0X
In Stock
From
$290.61
Eaton
7
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.