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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
HLW4630F
HLW4630F
In Stock
From
$4,994.28
Westinghouse
630
690
HM2P250F5
HM2P250F5
In Stock
From
$889.26
Eaton
250
600
HM2P250K5
HM2P250K5
In Stock
From
$889.26
Eaton
250
600
HM2P250L5W
HM2P250L5W
In Stock
From
$492.63
Eaton
250
600
HM2P250W5
HM2P250W5
In Stock
From
$709.75
Eaton
250
600
HM2P400X5W
HM2P400X5W
In Stock
From
$758.24
Eaton
400
600
HM2P400X5WS10
HM2P400X5WS10
In Stock
From
$1,234.86
Eaton
400
600
HMA3300
HMA3300
In Stock
From
$2,962.56
Cutler Hammer
300
600
HMA3800F
HMA3800F
In Stock
From
$1,495.19
Cutler Hammer
800
600
HMCP015E0S
HMCP015E0S
In Stock
From
$115.08
Eaton
15
-
HMCP030H1S
HMCP030H1S
In Stock
From
$324.14
Eaton
30
-
HMCP100K3
HMCP100K3
In Stock
From
$453.89
Eaton
100
600
HMCP150T4S
HMCP150T4S
In Stock
From
$3,672.87
Eaton
150
-
HMCP150U4S
HMCP150U4S
In Stock
From
$722.50
Eaton
150
-
HMCP400J5
HMCP400J5
In Stock
From
$1,890.91
Eaton
400
600
HMCP600X6W
HMCP600X6W
In Stock
From
$6,023.58
Eaton
600
600
HMCP600Y6C
HMCP600Y6C
In Stock
From
$7,027.51
Eaton
600
600
HMCP600Y6W
HMCP600Y6W
In Stock
From
$5,686.04
Eaton
800
600
HMCPS007C0CA02
HMCPS007C0CA02
In Stock
From
$781.19
Westinghouse
7
600
HMCPS015E0
HMCPS015E0
In Stock
From
$128.45
Eaton
15
600
HMCPS015E0C
HMCPS015E0C
In Stock
From
$519.87
Eaton
15
600
HMDL2300
HMDL2300
In Stock
From
$4,622.45
Westinghouse
300
600
HMDL2350
HMDL2350
In Stock
From
$3,709.91
Westinghouse
350
600
HMDL2400
HMDL2400
In Stock
From
$3,234.34
Westinghouse
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.