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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
LB3250F
LB3250F
In Stock
From
$187.45
Westinghouse
-
-
MCP0322SR
MCP0322SR
In Stock
From
$1,680.86
Westinghouse
-
-
MCP431800S
MCP431800S
In Stock
From
$118.07
Westinghouse
-
-
NP28313-E
NP28313-E
In Stock
From
$133.84
Westinghouse
-
-
QPH-2015
QPH-2015
In Stock
From
$80.22
Westinghouse
-
-
QPH2030
QPH2030
In Stock
From
$104.72
Westinghouse
-
-
FB2190ML
FB2190ML
In Stock
From
$1.49
Westinghouse
-
-
FB3022SML
FB3022SML
In Stock
From
$17.48
Westinghouse
-
-
FB3125A08
FB3125A08
In Stock
From
$22.22
Westinghouse
-
-
FB3125S02
FB3125S02
In Stock
From
$22.22
Westinghouse
-
-
HFA3270M
HFA3270M
In Stock
From
$1.49
Westinghouse
-
-
204P042H01B
204P042H01B
In Stock
From
$22.51
Westinghouse
-
-
FB3100M
FB3100M
In Stock
From
$0.02
Westinghouse
-
-
HFA3050M
HFA3050M
In Stock
From
Get Price
Westinghouse
-
-
HFA3070M
HFA3070M
In Stock
From
Get Price
Westinghouse
-
-
MCP-431550
MCP-431550
In Stock
From
Get Price
Westinghouse
-
-
F3190M
F3190M
In Stock
From
Get Price
Westinghouse
-
-
LD2400F
LD2400F
In Stock
From
Get Price
Eaton
-
-
504C747G27
504C747G27
In Stock
From
Get Price
Westinghouse
-
-
FB3035VL
FB3035VL
In Stock
From
Get Price
Westinghouse
-
-
FB3100MR
FB3100MR
In Stock
From
Get Price
Westinghouse
-
-
BAB1030V
BAB1030V
Limited Stock
From
Get Price
Eaton
30
240
BAB2035HT
BAB2035HT
Limited Stock
From
Get Price
Eaton
35
240
BAB2040HT
BAB2040HT
Limited Stock
From
Get Price
Eaton
40
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.