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
CKD3400LS
CKD3400LS
In Stock
From
Get Price
Eaton
400
600
EHD3100BP10
EHD3100BP10
In Stock
From
$554.22
Eaton
-
-
FD2030C05
FD2030C05
In Stock
From
Get Price
Eaton
30
600
FD2100LD12M03
FD2100LD12M03
In Stock
From
$310.34
Eaton
-
-
FD3015SL
FD3015SL
In Stock
From
$903.12
Eaton
-
600
FD3030SL
FD3030SL
In Stock
From
$818.13
Eaton
-
600
FD3060SL
FD3060SL
In Stock
From
$826.65
Eaton
-
600
FD3080SL
FD3080SL
In Stock
From
$622.64
Eaton
-
600
FD3090SL
FD3090SL
In Stock
From
$622.64
Eaton
-
600
FD3150S
FD3150S
In Stock
From
Get Price
Eaton
150
600
FDC2020C05
FDC2020C05
In Stock
From
Get Price
Eaton
20
600
GHC3100A3
GHC3100A3
In Stock
From
$1,070.60
Eaton
-
-
GHQ1030
GHQ1030
In Stock
From
$279.30
Eaton
-
-
GHQRD2020
GHQRD2020
In Stock
From
$416.17
Eaton
-
-
GWF3070
GWF3070
In Stock
From
$184.14
Eaton
-
-
HFDE308032A30805
HFDE308032A30805
In Stock
From
Get Price
Eaton
80
600
HKD3125LSI
HKD3125LSI
In Stock
From
Get Price
Eaton
125
125
HM1R12X
HM1R12X
In Stock
From
$302.65
Eaton
-
-
HMCP030H1CH09
HMCP030H1CH09
In Stock
From
Get Price
Eaton
30
-
HMCP050G2B
HMCP050G2B
In Stock
From
Get Price
Eaton
50
-
NGC312033M
NGC312033M
In Stock
From
Get Price
Eaton
-
-
NZM9-250/ZM9-250-CNA
NZM9-250/ZM9-250-CNA
Limited Stock
From
Get Price
Eaton
-
-
QBHW3100HF
QBHW3100HF
In Stock
From
$23.46
Eaton
-
-
QC1080
QC1080
In Stock
From
Get Price
Cutler Hammer
80
240
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.