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
KD2100W
KD2100W
In Stock
From
$1,248.00
Westinghouse
100
600
KD2125W
KD2125W
In Stock
From
$796.88
Cutler Hammer
125
600
KD2150W
KD2150W
In Stock
From
Get Price
Cutler Hammer
150
600
KD2175W
KD2175W
In Stock
From
$850.51
Westinghouse
175
600
KD2200W
KD2200W
In Stock
From
$636.47
Eaton
200
600
KD2225W
KD2225W
In Stock
From
$1,662.13
Westinghouse
225
600
KD2300W
KD2300W
In Stock
From
$843.41
Westinghouse
300
600
KD2350W
KD2350W
In Stock
From
$994.60
Cutler Hammer
350
600
KD2400W
KD2400W
In Stock
From
$2,620.09
Westinghouse
400
600
KDB2350
KDB2350
In Stock
From
$8,607.46
Westinghouse
350
600
KDC2125
KDC2125
In Stock
From
$1,167.65
Westinghouse
125
600
KDC2150
KDC2150
In Stock
From
Get Price
Eaton
150
600
KDC2175
KDC2175
In Stock
From
$722.89
Cutler Hammer
175
600
KDC2200
KDC2200
In Stock
From
$1,509.50
Westinghouse
200
600
MD3800W
MD3800W
In Stock
From
$7,976.81
Cutler Hammer
800
600
PM3LM
PM3LM
In Stock
From
Get Price
Eaton
-
600
CHF120CS
CHF120CS
Limited Stock
From
Get Price
Eaton
-
240
CHFP115A1CS
CHFP115A1CS
In Stock
From
$91.67
Eaton
-
120
ED3150V
ED3150V
In Stock
From
$1,298.91
Eaton
-
-
EHMVDB
EHMVDB
In Stock
From
$74.62
Eaton
-
-
HKDDC3300WF01
HKDDC3300WF01
In Stock
From
$7,551.46
Eaton
-
600
HT8X2
HT8X2
In Stock
From
$3.23
Eaton
-
-
KD3400FS
KD3400FS
In Stock
From
$4,048.58
Eaton
-
-
NZMB2-4-A125
NZMB2-4-A125
Limited Stock
From
Get Price
Eaton
-
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.