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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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
QO350VH
QO350VH
In Stock
From
$125.06
Square D
50
240
QO370VH
QO370VH
In Stock
From
$151.15
Square D
70
240
QO380VH
QO380VH
In Stock
From
$243.75
Square D
80
240
QR22B125
QR22B125
In Stock
From
$307.79
Siemens
125
240
QR22B150
QR22B150
In Stock
From
$205.31
Siemens
150
240
QR22B175
QR22B175
In Stock
From
$285.69
Siemens
175
240
QR22B250
QR22B250
In Stock
From
$285.69
Siemens
250
240
QR23B175
QR23B175
In Stock
From
$452.21
Siemens
175
240
QR23B225L
QR23B225L
In Stock
From
$738.02
Siemens
225
240
QRH23B100
QRH23B100
In Stock
From
$820.95
Siemens
100
240
QRH23B125L
QRH23B125L
In Stock
From
$700.13
Siemens
125
240
QRH23B175
QRH23B175
In Stock
From
$790.40
Siemens
175
240
QRH23B200L
QRH23B200L
Limited Stock
From
Get Price
Siemens
200
240
QRH23B225
QRH23B225
In Stock
From
$739.95
Siemens
225
240
QRH23B225L
QRH23B225L
In Stock
From
$970.54
Siemens
225
240
QSA2020SPD
QSA2020SPD
In Stock
From
Get Price
Siemens
20
240
SCND69120ANT
SCND69120ANT
In Stock
From
$4,017.18
Siemens
1200
600
SCND69120ANTH
SCND69120ANTH
In Stock
From
$8,029.66
Siemens
1200
600
SEHA36AT1015C
SEHA36AT1015C
In Stock
From
$130.94
General Electric
15
600
SEPA36AI0007
SEPA36AI0007
In Stock
From
$327.29
General Electric
7
600
SFHA24AN0250
SFHA24AN0250
In Stock
From
$461.68
General Electric
250
600
SFHA36AN0250
SFHA36AN0250
In Stock
From
$1,378.02
General Electric
250
600
SFLA24AI0250
SFLA24AI0250
In Stock
From
$715.96
General Electric
250
600
SFPA24AI0250
SFPA24AI0250
In Stock
From
Get Price
General Electric
250
600
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.