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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
S201UP-Z15
S201UP-Z15
In Stock
From
$128.97
ABB
15
277
S202P-K0.5
S202P-K0.5
In Stock
From
$145.65
ABB
0.5
480
S202U-K8
S202U-K8
In Stock
From
$120.89
ABB
8
240
S281-K16W
S281-K16W
In Stock
From
$11.33
ABB
16
277
S281-K63W
S281-K63W
In Stock
From
$230.28
ABB
63
277
SSF2G5X2U000000
SSF2G5X2U000000
In Stock
From
$9,958.77
ABB
1600
600
5SX2206-8
5SX2206-8
In Stock
From
$151.96
Siemens
6
400
S3B-3P-225A-DC
S3B-3P-225A-DC
In Stock
From
$1,302.97
ABB
225
240
S3H020TW
S3H020TW
In Stock
From
$235.60
ABB
20
600
S3L-3P-5A-MCP
S3L-3P-5A-MCP
In Stock
From
$380.44
ABB
5
600
S3L005MW
S3L005MW
In Stock
From
$380.42
ABB
5
600
S3N-3P-80A-ROTARY
S3N-3P-80A-ROTARY
In Stock
From
$648.12
ABB
80
600
S4NQ250BW
S4NQ250BW
In Stock
From
$600.00
ABB
250
600
S5H400TW
S5H400TW
In Stock
From
$1,232.00
ABB
400
600
S5N400TW-4
S5N400TW-4
In Stock
From
$621.31
ABB
400
600
S6H600E0H
S6H600E0H
In Stock
From
$1,190.23
ABB
600
600
S6H600EW
S6H600EW
In Stock
From
$1,618.04
ABB
600
600
S6H800E0H
S6H800E0H
In Stock
From
$4,073.81
ABB
800
600
S6HD-4P-400A
S6HD-4P-400A
In Stock
From
$1,009.41
ABB
400
600
S6N-2P-800A-DC
S6N-2P-800A-DC
In Stock
From
$471.41
ABB
800
600
S6N-4P-800A
S6N-4P-800A
In Stock
From
$3,191.92
ABB
800
600
S6N600MW
S6N600MW
In Stock
From
$677.83
ABB
600
600
S6N600TW
S6N600TW
In Stock
From
$5,144.56
ABB
600
600
S6N800TW-2
S6N800TW-2
In Stock
From
$997.27
ABB
800
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.