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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
QO2015
QO2015
In Stock
From
$76.37
Schneider Electric
-
-
QOU3151200
QOU3151200
In Stock
From
$887.85
Schneider Electric
-
-
QOU3401200
QOU3401200
In Stock
From
$111.51
Schneider Electric
-
-
QOUR120
QOUR120
In Stock
From
$38.41
Schneider Electric
-
-
QOUR220
QOUR220
In Stock
From
$70.70
Schneider Electric
-
-
QOUR320
QOUR320
In Stock
From
$263.68
Schneider Electric
-
-
RGF36120CU33A
RGF36120CU33A
In Stock
From
$8,218.04
Square D
1200
600
SFA308035
SFA308035
In Stock
From
$1,554.39
Schneider Electric
-
-
FA26020CA
FA26020CA
In Stock
From
$104.30
Square D
20
600
FA36100V
FA36100V
In Stock
From
$499.08
Square D
100
600
FAB14020A
FAB14020A
In Stock
From
$27.44
Square D
20
277
FAB14020C
FAB14020C
In Stock
From
$14.71
Square D
20
480
FAL241002200
FAL241002200
In Stock
From
$652.80
Square D
100
480
FHB26030AB
FHB26030AB
In Stock
From
$579.18
Square D
30
600
HJF36150CU31X
HJF36150CU31X
In Stock
From
$1,249.13
Square D
150
600
IK362251021
IK362251021
In Stock
From
$731.57
Square D
225
600
IKL342251212
IKL342251212
In Stock
From
$444.95
Square D
225
480
MG24489
MG24489
In Stock
From
$131.57
Square D
40
240
RJF46120CU31A
RJF46120CU31A
In Stock
From
Get Price
Square D
1200
600
12005
12005
Limited Stock
From
Get Price
Schneider Electric
-
-
1280413100
1280413100
In Stock
From
$3,628.42
Schneider Electric
-
-
15016
15016
Limited Stock
From
Get Price
Schneider Electric
-
-
18609
18609
Limited Stock
From
Get Price
Schneider Electric
-
-
18634
18634
In Stock
From
$67.10
Schneider Electric
-
-
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.