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
HQP2080
HQP2080
In Stock
From
$193.34
Eaton
80
240
HQP3015H
HQP3015H
In Stock
From
$142.29
Cutler Hammer
15
240
HQP3020H
HQP3020H
In Stock
From
$34.89
Eaton
20
240
HQP3040H
HQP3040H
In Stock
From
$113.33
Cutler Hammer
40
240
HQP3100H
HQP3100H
In Stock
From
$1,202.17
Cutler Hammer
100
240
KAM3225
KAM3225
In Stock
From
$2,800.47
Westinghouse
225
600
KS360400D
KS360400D
In Stock
From
$1,154.89
Cutler Hammer
400
600
LGE3600FAW
LGE3600FAW
In Stock
From
$4,101.15
Eaton
600
690
LM3600
LM3600
In Stock
From
$1,883.28
Westinghouse
600
600
LSB320400E
LSB320400E
In Stock
From
$950.83
Cutler Hammer
400
240
MCP431550CRX
MCP431550CRX
In Stock
From
$474.16
Cutler Hammer
150
600
MDS3800F
MDS3800F
In Stock
From
$1,303.13
Eaton
800
600
MS360800A
MS360800A
In Stock
From
$1,552.50
Eaton
800
600
PDF53M1200FNNN
PDF53M1200FNNN
In Stock
From
$3,050.00
Eaton
1200
600
PDG11C0125TFFJ
PDG11C0125TFFJ
In Stock
From
$173.46
Eaton
125
600
PDG42G0800FNNN
PDG42G0800FNNN
In Stock
From
$798.00
Eaton
800
600
QB1015GF
QB1015GF
In Stock
From
$107.32
Eaton
15
120
QBCAF1020
QBCAF1020
In Stock
From
$21.03
Eaton
20
240
QBGF1020
QBGF1020
In Stock
From
$134.60
Cutler Hammer
20
120
QBGF1030
QBGF1030
In Stock
From
$149.22
Eaton
30
120
QBH1020AFGF
QBH1020AFGF
In Stock
From
$304.13
Cutler Hammer
20
240
QBH1020CAF
QBH1020CAF
In Stock
From
$156.57
Eaton
20
240
QBH1030EP
QBH1030EP
In Stock
From
$644.99
Eaton
30
120
QBH1030GF
QBH1030GF
In Stock
From
$161.60
Eaton
30
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.