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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
FXD63B225L
FXD63B225L
In Stock
From
$1,605.12
Siemens
225
600
FXD63B250L
FXD63B250L
In Stock
From
$721.85
Siemens
250
600
FXD63L150L
FXD63L150L
In Stock
From
$733.42
Siemens
150
600
FXD63M150
FXD63M150
In Stock
From
$1,166.78
Siemens
150
600
FXD63M225
FXD63M225
In Stock
From
$3,700.67
Siemens
225
600
FXD63S250
FXD63S250
In Stock
From
$583.60
Siemens
250
600
FXD63S250AL
FXD63S250AL
In Stock
From
$720.28
Siemens
250
600
HB2B020
HB2B020
In Stock
From
$116.52
Siemens
20
240
HB2B030
HB2B030
In Stock
From
$103.02
Siemens
30
240
HB2B080
HB2B080
In Stock
From
$190.33
Siemens
80
240
HDK3B050L
HDK3B050L
Limited Stock
From
Get Price
Siemens
50
600
HDK3B060L
HDK3B060L
In Stock
From
$1,639.93
Siemens
60
600
HDK3B125L
HDK3B125L
In Stock
From
$1,544.20
Siemens
125
600
HDK3T100L
HDK3T100L
In Stock
From
$2,887.40
Siemens
100
600
HDX3B080
HDX3B080
In Stock
From
$484.80
Siemens
80
600
HDX3B100
HDX3B100
In Stock
From
$811.42
Siemens
100
600
HDX3P100
HDX3P100
In Stock
From
$181.42
Siemens
100
600
HE2A015
HE2A015
In Stock
From
$449.49
Siemens
15
480
HE2B015
HE2B015
In Stock
From
$96.00
ITE
15
480
HE2B100
HE2B100
In Stock
From
$233.07
ITE
100
480
HE3A010
HE3A010
In Stock
From
$5.36
ITE
10
480
HE3A060
HE3A060
In Stock
From
$290.45
Siemens
60
480
HE3B010
HE3B010
In Stock
From
$292.67
Siemens
10
480
HE3B020
HE3B020
In Stock
From
$155.14
Siemens
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.