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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
5SU1356-1KK10
5SU1356-1KK10
In Stock
From
$141.17
Siemens
10
400
5SU1356-1KK16
5SU1356-1KK16
Limited Stock
From
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Siemens
16
400
5SU1356-1KK20
5SU1356-1KK20
Limited Stock
From
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Siemens
20
400
5SU1356-1KK25
5SU1356-1KK25
Limited Stock
From
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Siemens
25
400
5SU1356-1KK40
5SU1356-1KK40
Limited Stock
From
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Siemens
40
400
5SU1356-6KK06
5SU1356-6KK06
In Stock
From
$482.84
Siemens
6
400
5SU1356-6KK16
5SU1356-6KK16
In Stock
From
$355.89
Siemens
16
400
5SU1356-6KK25
5SU1356-6KK25
Limited Stock
From
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Siemens
25
400
5SU1356-7KK06
5SU1356-7KK06
In Stock
From
$262.83
Siemens
6
400
5SU1356-7KK13
5SU1356-7KK13
Limited Stock
From
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Siemens
13
400
5SU1356-7KK16
5SU1356-7KK16
Limited Stock
From
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Siemens
16
400
5SU1356-7KK20
5SU1356-7KK20
Limited Stock
From
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Siemens
20
400
5SU1356-7KK32
5SU1356-7KK32
Limited Stock
From
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Siemens
32
400
5SU1356-7KK40
5SU1356-7KK40
Limited Stock
From
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Siemens
40
400
5SU1356-7KV10
5SU1356-7KV10
Limited Stock
From
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Siemens
10
400
B110
B110
In Stock
From
$39.37
Siemens
20
120
B115AFCH
B115AFCH
In Stock
From
$144.29
ITE
15
120
B120AFCH
B120AFCH
In Stock
From
$177.49
ITE
15
120
B120Y
B120Y
In Stock
From
$11.66
Siemens
20
240
B160HH
B160HH
In Stock
From
$55.72
Siemens
60
240
B22500S01
B22500S01
In Stock
From
$147.32
Siemens
25
240
B225H
B225H
In Stock
From
$63.56
Siemens
25
240
B290R
B290R
In Stock
From
$95.00
Siemens
90
240
BA115AF
BA115AF
In Stock
From
$132.88
Siemens
15
120
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.