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
QJ23B150H00S01
QJ23B150H00S01
In Stock
From
$732.66
Siemens
150
240
QJ23B150HA01
QJ23B150HA01
In Stock
From
$917.06
Siemens
150
240
QJ23B150HA02
QJ23B150HA02
In Stock
From
$917.06
Siemens
150
240
QJ23B150HL
QJ23B150HL
In Stock
From
$917.06
Siemens
150
240
QJ23B200H00S01
QJ23B200H00S01
In Stock
From
$1,649.34
Siemens
200
240
QJ23B200HA01
QJ23B200HA01
In Stock
From
$2,262.47
Siemens
200
240
QJ23B200HA02
QJ23B200HA02
In Stock
From
$2,262.47
Siemens
200
240
QJ23B200HL
QJ23B200HL
In Stock
From
$2,262.47
Siemens
200
240
QJ23B225H00S01
QJ23B225H00S01
In Stock
From
$937.84
Siemens
225
240
QJ23B225HA01
QJ23B225HA01
In Stock
From
$761.30
Siemens
225
240
QJ23B225HA02
QJ23B225HA02
In Stock
From
$937.84
Siemens
225
240
QJ23B225HL
QJ23B225HL
In Stock
From
$455.51
Siemens
225
240
QJ2B060
QJ2B060
In Stock
From
$124.07
ITE
60
240
QJ2B060H
QJ2B060H
In Stock
From
$286.18
Siemens
60
240
QJ2B060HL
QJ2B060HL
In Stock
From
$347.59
Siemens
60
240
QJ2B060L
QJ2B060L
In Stock
From
$166.94
Siemens
60
240
QJ2B070
QJ2B070
In Stock
From
$77.92
ITE
70
240
QJ2B070H
QJ2B070H
In Stock
From
$277.82
Siemens
70
240
QJ2B070HL
QJ2B070HL
In Stock
From
$330.98
Siemens
70
240
QJ2B070L
QJ2B070L
In Stock
From
$77.92
ITE
70
240
QJ2B080
QJ2B080
In Stock
From
$111.08
ITE
80
240
QJ2B080H
QJ2B080H
In Stock
From
$327.50
Siemens
80
240
QJ2B080HL
QJ2B080HL
In Stock
From
$327.50
Siemens
80
240
QJ2B080L
QJ2B080L
In Stock
From
$136.50
ITE
80
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.