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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.
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Part Number
PRICE
Manufacturer
NP031080
NP031080
In Stock
From
$506.97
Federal Pacific
NP631000
NP631000
In Stock
From
$31.60
Federal Pacific
PBEFG100
PBEFG100
In Stock
From
$166.67
Federal Pacific
QSF352
QSF352
In Stock
From
$11.11
Federal Pacific
SF-3-C-150
SF-3-C-150
In Stock
From
$583.61
Federal Pacific
STK100001
STK100001
In Stock
From
$11.11
Federal Pacific
STK100002
STK100002
In Stock
From
$11.11
Federal Pacific
STK100003
STK100003
In Stock
From
$11.11
Federal Pacific
FPE5300SEC
FPE5300SEC
In Stock
From
$90.53
Federal Pacific
HEG233020
HEG233020
In Stock
From
$11.11
Federal Pacific
HEG633040
HEG633040
In Stock
From
$22.22
Federal Pacific
HEG633100
HEG633100
In Stock
From
$22.22
Federal Pacific
NA120GFI
NA120GFI
In Stock
From
$174.74
Federal Pacific
NBH130
NBH130
In Stock
From
Get Price
Federal Pacific
NBH221030
NBH221030
In Stock
From
$11.11
Federal Pacific
NBH260
NBH260
In Stock
From
Get Price
Federal Pacific
NE233050 W/ST
NE233050 W/ST
In Stock
From
$2.22
Federal Pacific
NE233070 W/ST
NE233070 W/ST
In Stock
From
$2.22
Federal Pacific
NEF111020
NEF111020
In Stock
From
$30.20
Federal Pacific
NEF33100
NEF33100
In Stock
From
$576.00
Federal Pacific
NEF423100
NEF423100
In Stock
From
$33.33
Federal Pacific
NEJH231125
NEJH231125
In Stock
From
$55.56
Federal Pacific
NEJH231175
NEJH231175
In Stock
From
$55.56
Federal Pacific
NF231070
NF231070
In Stock
From
Get Price
Federal Pacific
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

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.