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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
OSMC65H1C1
OSMC65H1C1
Limited Stock
From
Get Price
Schneider Electric
1
480
OSMC65H1C6
OSMC65H1C6
Limited Stock
From
Get Price
Schneider Electric
6
480
OSMC65H1D3
OSMC65H1D3
In Stock
From
$9.52
Schneider Electric
3
480
OSMC65H2D1
OSMC65H2D1
In Stock
From
$8.00
Schneider Electric
1
480
OSMC65H3D2
OSMC65H3D2
In Stock
From
$29.26
Schneider Electric
2
480
QBL22200LW
QBL22200LW
In Stock
From
Get Price
Square D
200
240
QO120VHPAF
QO120VHPAF
In Stock
From
$535.07
Schneider Electric
20
120
QOB130EPD2100
QOB130EPD2100
In Stock
From
$163.75
Schneider Electric
30
120
RLF36250U31F
RLF36250U31F
In Stock
From
$10,478.89
Schneider Electric
2500
600
S143B
S143B
In Stock
From
$2,483.09
Schneider Electric
-
600
S144B
S144B
In Stock
From
$2,301.84
Schneider Electric
-
600
1C125
1C125
Limited Stock
From
Get Price
Schneider Electric
125
240
24333
24333
In Stock
From
$1.32
Merlin Gerin
3
440
60235
60235
In Stock
From
$59.66
Schneider Electric
1
240
60240
60240
In Stock
From
$32.50
Schneider Electric
5
240
60247
60247
In Stock
From
$105.76
Square D
20
240
A9F19310
A9F19310
In Stock
From
$65.69
Schneider Electric
10
400
A9N19815
A9N19815
In Stock
From
$566.03
Schneider Electric
80
400
A9N19818
A9N19818
In Stock
From
$313.51
Schneider Electric
100
400
A9N19819
A9N19819
In Stock
From
$328.14
Schneider Electric
100
400
A9N19823
A9N19823
In Stock
From
$260.01
Schneider Electric
100
400
A9N19827
A9N19827
In Stock
From
$415.60
Schneider Electric
125
400
A9N19830
A9N19830
In Stock
From
$277.10
Schneider Electric
125
400
A9N19831
A9N19831
In Stock
From
$431.91
Schneider Electric
125
400
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.