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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
SH203-C16
SH203-C16
Limited Stock
From
Get Price
ABB
16
440
SKHC3612L5XX
SKHC3612L5XX
In Stock
From
$8,470.50
General Electric
1200
600
ST201M-B16
ST201M-B16
In Stock
From
$74.72
ABB
16
277
ST201M-B2
ST201M-B2
In Stock
From
$88.16
ABB
2
277
ST201M-B20
ST201M-B20
In Stock
From
$50.82
ABB
20
277
ST201M-B25
ST201M-B25
In Stock
From
$99.06
ABB
25
277
ST201M-B3
ST201M-B3
In Stock
From
$88.16
ABB
3
277
ST201M-B32
ST201M-B32
In Stock
From
$85.73
ABB
32
277
ST201M-B40
ST201M-B40
In Stock
From
$100.40
ABB
40
277
ST201M-C1
ST201M-C1
In Stock
From
$50.35
ABB
1
277
ST201M-C10
ST201M-C10
In Stock
From
$28.02
ABB
10
277
ST201M-C16
ST201M-C16
In Stock
From
$38.64
ABB
16
277
ST201M-C2
ST201M-C2
In Stock
From
$85.33
ABB
2
277
ST201M-C20
ST201M-C20
In Stock
From
$39.50
ABB
20
277
ST201M-C32
ST201M-C32
In Stock
From
$21.65
ABB
32
277
ST201M-C50
ST201M-C50
In Stock
From
$37.18
ABB
50
277
ST201M-C63
ST201M-C63
In Stock
From
$115.14
ABB
63
277
ST201M-D10
ST201M-D10
In Stock
From
$88.16
ABB
10
277
ST201M-D13
ST201M-D13
In Stock
From
$17.30
ABB
13
277
ST201M-D40
ST201M-D40
In Stock
From
$24.17
ABB
40
277
ST201M-K0.5
ST201M-K0.5
In Stock
From
$35.82
ABB
0.5
277
ST201M-K10
ST201M-K10
In Stock
From
$32.18
ABB
10
277
ST201M-K15
ST201M-K15
In Stock
From
$63.79
ABB
15
277
ST201M-K2
ST201M-K2
In Stock
From
$37.49
ABB
2
277
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.