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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
ED43B060
ED43B060
In Stock
From
$331.14
Siemens
60
480
ED43B090
ED43B090
In Stock
From
$267.39
Siemens
90
480
ED43B100
ED43B100
In Stock
From
$301.43
Siemens
100
480
ED43B100L
ED43B100L
In Stock
From
$234.52
Siemens
100
480
ED43B125
ED43B125
In Stock
From
$427.81
Siemens
125
480
ED61B015
ED61B015
In Stock
From
$749.50
Siemens
15
600
ED63A001
ED63A001
In Stock
From
$339.38
Siemens
1
600
ED63A002
ED63A002
In Stock
From
$370.13
Siemens
2
600
ED63A010
ED63A010
In Stock
From
$424.52
Siemens
10
600
ED63A025
ED63A025
In Stock
From
$560.97
Siemens
25
600
ED63A030
ED63A030
In Stock
From
$514.68
Siemens
30
600
ED63A050
ED63A050
In Stock
From
$518.79
Siemens
50
600
ED63A100
ED63A100
In Stock
From
$510.36
Siemens
100
600
ED63A125
ED63A125
In Stock
From
$714.47
Siemens
125
600
ED63B015
ED63B015
In Stock
From
$240.74
Siemens
15
600
ED63B030L
ED63B030L
In Stock
From
$662.20
Siemens
30
600
ED63B035
ED63B035
In Stock
From
$249.24
Siemens
35
600
ED63B050
ED63B050
In Stock
From
$302.80
Siemens
50
600
ED63B050L
ED63B050L
In Stock
From
$460.33
Siemens
50
600
ED63B100
ED63B100
In Stock
From
$361.56
Siemens
100
600
ED63B100L
ED63B100L
In Stock
From
$238.04
Siemens
100
600
ED63B125
ED63B125
In Stock
From
$600.14
Siemens
125
600
FD63B150
FD63B150
In Stock
From
$445.41
Siemens
150
600
FXD62B100
FXD62B100
In Stock
From
$655.71
Siemens
100
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.