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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
E61B100
E61B100
In Stock
From
$65.60
ITE
100
600
E63A001
E63A001
In Stock
From
$75.68
Siemens
1
600
E63A005
E63A005
In Stock
From
$223.97
Siemens
5
600
E63A030
E63A030
In Stock
From
$154.36
Siemens
30
600
E63A040
E63A040
In Stock
From
$183.71
Siemens
40
600
E63A100
E63A100
In Stock
From
$286.32
Siemens
100
600
E63B015
E63B015
In Stock
From
$133.89
Siemens
15
600
E63B025
E63B025
In Stock
From
$221.14
Siemens
25
600
E63B030
E63B030
In Stock
From
$131.40
ITE
30
600
E63B035
E63B035
In Stock
From
$626.83
Siemens
35
600
E63B045
E63B045
In Stock
From
$214.00
ITE
45
600
E63B050
E63B050
In Stock
From
$199.69
Siemens
50
600
E63B060
E63B060
In Stock
From
$469.00
Siemens
60
600
E63B070
E63B070
In Stock
From
$77.96
ITE
70
600
E63B080
E63B080
In Stock
From
$175.78
Siemens
80
600
E63B090
E63B090
In Stock
From
$256.64
ITE
90
600
E63B100
E63B100
In Stock
From
$221.48
Siemens
100
600
E63B110
E63B110
In Stock
From
$200.18
ITE
110
600
E63B125
E63B125
In Stock
From
$369.98
ITE
125
600
E63S100A
E63S100A
In Stock
From
$447.12
ITE
100
600
ED42S125ALAC
ED42S125ALAC
In Stock
From
$275.07
Siemens
125
480
EE1H015
EE1H015
In Stock
From
$29.00
Siemens
15
120
EE1H020
EE1H020
In Stock
From
$43.09
Siemens
20
120
EE3A003
EE3A003
In Stock
From
$265.78
ITE
3
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.