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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
LD2300F
LD2300F
In Stock
From
$0.02
Eaton
-
-
MS36080YA
MS36080YA
In Stock
From
$281.36
Eaton
-
-
PDF23G0225B2NJ
PDF23G0225B2NJ
In Stock
From
Get Price
Eaton
225
480
XO1230
XO1230
In Stock
From
Get Price
Cutler Hammer
30
240
CTFD225
CTFD225
In Stock
From
$325.22
Cutler Hammer
-
-
E2F100KMA02S22
E2F100KMA02S22
In Stock
From
$536.97
Cutler Hammer
-
-
FCWTK
FCWTK
In Stock
From
$3.35
Cutler Hammer
-
-
HLD3600LSIG
HLD3600LSIG
In Stock
From
Get Price
Eaton
600
480
HMCP030H1CH09
HMCP030H1CH09
In Stock
From
Get Price
Eaton
30
-
HMCPJ250A5L
HMCPJ250A5L
In Stock
From
$1,724.72
Cutler Hammer
-
-
HMCPJ250C5L
HMCPJ250C5L
In Stock
From
$2,661.37
Cutler Hammer
-
-
KA3225NW
KA3225NW
In Stock
From
$501.09
Eaton
-
-
KS360400A
KS360400A
In Stock
From
$660.96
Eaton
-
-
RHE3B035
RHE3B035
In Stock
From
$876.53
Eaton
-
-
138956
138956
In Stock
From
$23.19
Eaton
-
-
278610
278610
Limited Stock
From
Get Price
Eaton
-
-
278666
278666
Limited Stock
From
Get Price
Eaton
-
-
278760
278760
In Stock
From
$636.06
Eaton
-
-
2C12790G48 (SRD)
2C12790G48 (SRD)
In Stock
From
$818.10
Eaton
-
-
66D2135G01
66D2135G01
Limited Stock
From
Get Price
Eaton
-
-
CJ2-G200L
CJ2-G200L
In Stock
From
$194.83
Eaton
-
-
CKT2300T
CKT2300T
In Stock
From
$110.74
Eaton
-
-
CLS6-C4
CLS6-C4
In Stock
From
Get Price
Eaton
-
-
CMBE24L125BTS
CMBE24L125BTS
In Stock
From
$1,002.90
Eaton
-
-
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.