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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
3VA4150-6ED34-0AA0
3VA4150-6ED34-0AA0
In Stock
From
$1,045.97
Siemens
125
600
5SU1356-7KK20
5SU1356-7KK20
Limited Stock
From
Get Price
Siemens
20
400
B115AFCH
B115AFCH
In Stock
From
$161.15
ITE
15
120
B120Y
B120Y
In Stock
From
$9.56
Siemens
20
240
B2110
B2110
In Stock
From
$216.22
Siemens
110
240
B220R
B220R
In Stock
From
$200.85
Siemens
20
240
B235HH
B235HH
In Stock
From
$110.99
Siemens
35
240
B245
B245
In Stock
From
$82.49
Siemens
45
240
B290
B290
In Stock
From
$30.51
Siemens
90
240
B290R
B290R
In Stock
From
$95.00
Siemens
90
240
BA115AF
BA115AF
In Stock
From
$132.22
Siemens
15
120
BA120AF
BA120AF
In Stock
From
$117.04
Siemens
20
120
BA120AFH
BA120AFH
In Stock
From
$103.51
Siemens
20
120
BE260
BE260
In Stock
From
$159.57
Siemens
60
240
BE260H
BE260H
In Stock
From
$441.10
Siemens
60
240
BQ2B07000S01
BQ2B07000S01
In Stock
From
$137.14
Siemens
70
240
BQ2B08000S01
BQ2B08000S01
In Stock
From
$88.41
Siemens
80
240
CA3100
CA3100
In Stock
From
$1,321.91
Cutler Hammer
100
240
CA3175
CA3175
In Stock
From
$1,111.05
Cutler Hammer
175
240
CAH3225
CAH3225
In Stock
From
$1,126.11
Cutler Hammer
225
240
CED62B020
CED62B020
In Stock
From
$551.92
Siemens
20
600
CED62B030
CED62B030
In Stock
From
$711.21
Siemens
30
600
CED62B040
CED62B040
In Stock
From
$542.68
Siemens
40
600
CED62B050
CED62B050
In Stock
From
$590.90
Siemens
50
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.