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
QJH22B225L
QJH22B225L
In Stock
From
$766.25
Siemens
225
240
QJH23B08000S01
QJH23B08000S01
In Stock
From
$584.21
Siemens
80
240
QJH23B080A01
QJH23B080A01
In Stock
From
$584.21
Siemens
80
240
QJH23B080A02
QJH23B080A02
In Stock
From
$584.21
Siemens
80
240
QJH23B080L
QJH23B080L
In Stock
From
$584.21
Siemens
80
240
QJH23B09000S01
QJH23B09000S01
In Stock
From
$594.34
Siemens
90
240
QJH23B090A01
QJH23B090A01
In Stock
From
$594.34
Siemens
90
240
QJH23B090A02
QJH23B090A02
In Stock
From
$594.34
Siemens
90
240
QJH23B090L
QJH23B090L
In Stock
From
$594.34
Siemens
90
240
QJH23B12500S01
QJH23B12500S01
In Stock
From
$839.62
Siemens
125
240
QJH23B125A01
QJH23B125A01
In Stock
From
$483.86
Siemens
125
240
QJH23B125A02
QJH23B125A02
In Stock
From
$839.62
Siemens
125
240
QJH23B125L
QJH23B125L
In Stock
From
$681.23
Siemens
125
240
QR22B125
QR22B125
In Stock
From
$326.31
Siemens
125
240
QR22B175
QR22B175
In Stock
From
$341.45
Siemens
175
240
QR22B250
QR22B250
In Stock
From
$332.07
Siemens
250
240
QRH22B200L
QRH22B200L
In Stock
From
$480.93
Siemens
200
240
QRH23B100
QRH23B100
In Stock
From
$823.68
Siemens
100
240
QRH23B125L
QRH23B125L
In Stock
From
$448.08
Siemens
125
240
QRH23B200L
QRH23B200L
Limited Stock
From
Get Price
Siemens
200
240
QRH23B225L
QRH23B225L
In Stock
From
$930.85
Siemens
225
240
SCND69120ANTH
SCND69120ANTH
In Stock
From
$9,830.51
Siemens
1200
600
3RV1321-4AC10
3RV1321-4AC10
In Stock
From
$76.59
Siemens
16
690
3VA4110-6ED34-0AA0
3VA4110-6ED34-0AA0
In Stock
From
$459.68
Siemens
125
-
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.