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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
KS320300A
KS320300A
In Stock
From
$705.45
Cutler Hammer
-
240
KT3225TV
KT3225TV
In Stock
From
$447.06
Eaton
-
-
LD3600NW
LD3600NW
In Stock
From
$4,879.89
Eaton
-
-
MS360800
MS360800
In Stock
From
$1,782.00
Cutler Hammer
800
600
QBHGF2015
QBHGF2015
Limited Stock
From
Get Price
Cutler Hammer
15
240
QC2005
QC2005
In Stock
From
$50.58
Cutler Hammer
5
240
QC2045HT
QC2045HT
In Stock
From
$127.33
Eaton
45
240
QC2055
QC2055
In Stock
From
$64.00
Cutler Hammer
55
240
RGH216038E
RGH216038E
In Stock
From
$555.56
Eaton
1600
-
WMS2D00
WMS2D00
In Stock
From
$42.78
Eaton
0.5
480
WMS3D16
WMS3D16
In Stock
From
$71.79
Eaton
16
480
WMZH3C15T
WMZH3C15T
In Stock
From
$487.16
Eaton
15
480
WMZT2D01T
WMZT2D01T
In Stock
From
$113.40
Eaton
1
480
WMZT3D15T
WMZT3D15T
In Stock
From
$154.80
Eaton
15
480
BA1030
BA1030
In Stock
From
$16.57
Eaton
-
-
CCP-3-30CF
CCP-3-30CF
In Stock
From
$156.13
Eaton
-
-
CD3-Z142-1
CD3-Z142-1
In Stock
From
$359.49
Eaton
-
-
CE1020
CE1020
In Stock
From
$31.06
Challenger
-
-
FWF1080LM05
FWF1080LM05
In Stock
From
$134.23
Eaton
-
-
HKDDC3300A1301T1001Z01
HKDDC3300A1301T1001Z01
In Stock
From
$4,057.95
Eaton
-
-
HMCPE030H1CB1
HMCPE030H1CB1
In Stock
From
$465.72
Eaton
-
-
KD2400FS
KD2400FS
In Stock
From
$1,251.47
Eaton
-
-
LCL3400
LCL3400
In Stock
From
$1,188.47
Eaton
-
-
MS360800F
MS360800F
In Stock
From
$0.02
Eaton
800
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.