1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
EH3B040
EH3B040
In Stock
From
$430.98
Siemens
40
480
EH3B050
EH3B050
In Stock
From
Get Price
Siemens
50
480
EH3B060
EH3B060
In Stock
From
Get Price
ITE
60
480
EH3B070
EH3B070
In Stock
From
$980.18
Siemens
70
480
EH3B100
EH3B100
In Stock
From
$875.23
Siemens
100
480
EH3S100
EH3S100
In Stock
From
$1,319.31
ITE
100
480
EQ1115
EQ1115
In Stock
From
$5.05
ITE
15
120
EQ1120
EQ1120
In Stock
From
$14.31
ITE
20
120
EQ2120
EQ2120
In Stock
From
$69.64
ITE
20
240
EQ2130
EQ2130
In Stock
From
$129.31
ITE
30
240
EQ2150
EQ2150
In Stock
From
$71.39
ITE
50
240
ET4061
ET4061
In Stock
From
$162.74
ITE
5
600
ET4063
ET4063
In Stock
From
$91.46
ITE
25
600
F63F250
F63F250
In Stock
From
$168.11
Siemens
250
600
FJ3B070
FJ3B070
In Stock
From
$259.85
ITE
70
600
FJ3B125
FJ3B125
In Stock
From
$280.80
Siemens
125
600
FJ3B150
FJ3B150
In Stock
From
$471.64
Siemens
150
600
FJ3B200
FJ3B200
In Stock
From
$465.00
Siemens
200
600
FJ3B225
FJ3B225
In Stock
From
$1,061.87
Siemens
225
600
FJ63B150
FJ63B150
In Stock
From
$313.44
Siemens
150
600
FJ63B175
FJ63B175
In Stock
From
$226.47
Siemens
175
600
FJ63B200
FJ63B200
In Stock
From
$331.36
Siemens
200
600
FJ63B225
FJ63B225
In Stock
From
$212.49
Siemens
225
600
HE42B020
HE42B020
In Stock
From
$26.43
ITE
20
480
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.