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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
RLM3800
RLM3800
In Stock
From
$3,178.58
Westinghouse
800
600
RLM3800K
RLM3800K
In Stock
From
$2,737.96
Westinghouse
800
600
RLM3800L
RLM3800L
In Stock
From
$3,271.69
Westinghouse
800
600
SCB32000
SCB32000
In Stock
From
$7,851.07
Westinghouse
2000
600
SCB32000F
SCB32000F
In Stock
From
$5,843.86
Westinghouse
2000
600
HFA3035M
HFA3035M
In Stock
From
$118.69
Westinghouse
35
600
HFB2110ML
HFB2110ML
In Stock
From
Get Price
Cutler Hammer
10
600
HMCP050G2B
HMCP050G2B
In Stock
From
Get Price
Eaton
50
-
LA3150
LA3150
In Stock
From
Get Price
Cutler Hammer
150
600
MCP13300
MCP13300
In Stock
From
$165.13
Cutler Hammer
-
-
MCP331000RC
MCP331000RC
In Stock
From
$636.55
Westinghouse
-
-
BD4040
BD4040
In Stock
From
$117.63
Cutler Hammer
40
120
1532393A
1532393A
In Stock
From
$60.80
Westinghouse
-
-
5682D29G02
5682D29G02
In Stock
From
$44.49
Westinghouse
-
-
ALB-1-30A
ALB-1-30A
In Stock
From
$61.30
Westinghouse
-
-
ALB-1-5A
ALB-1-5A
In Stock
From
$33.27
Westinghouse
-
-
BAB1020T
BAB1020T
In Stock
From
$88.67
Eaton
-
-
JB3250NW
JB3250NW
In Stock
From
$231.00
Westinghouse
-
-
MG-8888
MG-8888
In Stock
From
$12.09
Westinghouse
-
-
1265C95G16
1265C95G16
In Stock
From
$368.60
Westinghouse
50
600
454D676G20
454D676G20
In Stock
From
$249.42
Cutler Hammer
-
600
454D676G24
454D676G24
In Stock
From
$310.25
Cutler Hammer
25
600
DA3400XZ
DA3400XZ
In Stock
From
$192.50
Westinghouse
400
240
HFDDC3070D17
HFDDC3070D17
In Stock
From
$0.02
Eaton
70
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.