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
HQP3060N
HQP3060N
In Stock
From
$412.06
Cutler Hammer
60
240
HQP3070H
HQP3070H
In Stock
From
$117.88
Cutler Hammer
70
240
HQP3080H
HQP3080H
Limited Stock
From
Get Price
Cutler Hammer
80
240
HQP3090H
HQP3090H
In Stock
From
$116.42
Cutler Hammer
90
240
JD3200K
JD3200K
In Stock
From
$54.26
Eaton
200
600
JDB3200L
JDB3200L
In Stock
From
$1,863.45
Cutler Hammer
200
600
JI3250F
JI3250F
In Stock
From
$119.36
Cutler Hammer
250
480
KDC3250LSI
KDC3250LSI
In Stock
From
$841.01
Eaton
250
600
KI3300L
KI3300L
In Stock
From
$3,656.31
Cutler Hammer
300
480
KI3400F
KI3400F
In Stock
From
$55.56
Westinghouse
400
480
KS360250D
KS360250D
In Stock
From
$1,908.53
Cutler Hammer
250
600
KS360300D
KS360300D
In Stock
From
$1,951.87
Cutler Hammer
300
600
KS360350D
KS360350D
In Stock
From
$1,720.61
Cutler Hammer
350
600
L3400
L3400
In Stock
From
$438.77
Westinghouse
400
600
LDC3600LS
LDC3600LS
In Stock
From
$418.80
Eaton
600
600
LSB220400E
LSB220400E
In Stock
From
$1,867.94
Cutler Hammer
400
240
MS360500A
MS360500A
In Stock
From
$1,313.80
Westinghouse
500
600
MS360600A
MS360600A
In Stock
From
$1,608.24
Westinghouse
600
600
MS360700A
MS360700A
In Stock
From
$892.95
Westinghouse
700
600
NGS208033E
NGS208033E
In Stock
From
$6,244.79
Eaton
800
480
PDG13C0030TFFJ
PDG13C0030TFFJ
In Stock
From
$538.57
Eaton
30
600
PDG13F0025TFFJ
PDG13F0025TFFJ
In Stock
From
$423.66
Eaton
25
600
QB1030EP
QB1030EP
In Stock
From
$259.87
Cutler Hammer
30
120
QBAF1020
QBAF1020
In Stock
From
$163.19
Cutler Hammer
20
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.