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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
SCB32000
SCB32000
In Stock
From
$5,024.69
Westinghouse
2000
600
SCB32000F
SCB32000F
In Stock
From
$4,222.19
Westinghouse
2000
600
HFB2110ML
HFB2110ML
In Stock
From
Get Price
Cutler Hammer
10
600
HMCP050G2B
HMCP050G2B
In Stock
From
Get Price
Eaton
50
-
MCP03150
MCP03150
In Stock
From
$164.37
Cutler Hammer
15
600
MCP03150S
MCP03150S
In Stock
From
$411.20
Westinghouse
-
-
MCP13300
MCP13300
In Stock
From
$132.10
Cutler Hammer
30
600
MCP331000RC
MCP331000RC
In Stock
From
$407.39
Westinghouse
-
-
112D631H01M
112D631H01M
In Stock
From
$331.34
Westinghouse
-
-
1532393A
1532393A
In Stock
From
$42.00
Westinghouse
-
-
1605782A
1605782A
In Stock
From
$40.04
Westinghouse
-
-
452D370G03
452D370G03
In Stock
From
$13,913.20
Westinghouse
-
-
5682D29G02
5682D29G02
In Stock
From
$49.96
Westinghouse
-
-
70E3040
70E3040
In Stock
From
$119.74
Westinghouse
-
-
ALB-1-5A
ALB-1-5A
In Stock
From
$33.94
Westinghouse
-
-
BAB1020T
BAB1020T
In Stock
From
$88.67
Eaton
-
-
E3050C
E3050C
In Stock
From
$129.10
Westinghouse
-
-
EA2012
EA2012
In Stock
From
$34.14
Westinghouse
-
-
EHB3005
EHB3005
In Stock
From
$116.15
Westinghouse
-
-
MG-8888
MG-8888
In Stock
From
$12.09
Westinghouse
-
-
NP255P289H01
NP255P289H01
In Stock
From
$58.89
Westinghouse
-
-
RT-1694
RT-1694
In Stock
From
$7.30
Westinghouse
-
-
1265C95G16
1265C95G16
In Stock
From
$501.42
Westinghouse
50
600
454D676G20
454D676G20
In Stock
From
$159.63
Cutler Hammer
-
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.