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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
WMZH3D13
WMZH3D13
Limited Stock
From
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Eaton
13
480
WMZH3D13T
WMZH3D13T
Limited Stock
From
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Eaton
13
480
WMZH3D15
WMZH3D15
Limited Stock
From
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Eaton
15
480
WMZH3D15T
WMZH3D15T
Limited Stock
From
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Eaton
15
480
WMZH3D16
WMZH3D16
Limited Stock
From
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Eaton
16
480
WMZH3D16T
WMZH3D16T
Limited Stock
From
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Eaton
16
480
WMZH3D20
WMZH3D20
Limited Stock
From
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Eaton
20
480
WMZH3D20T
WMZH3D20T
Limited Stock
From
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Eaton
20
480
WMZT1C01T
WMZT1C01T
Limited Stock
From
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Eaton
1
480
WMZT1C02T
WMZT1C02T
Limited Stock
From
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Eaton
2
480
WMZT1C03T
WMZT1C03T
Limited Stock
From
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Eaton
3
480
WMZT1C04T
WMZT1C04T
Limited Stock
From
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Eaton
4
480
WMZT1C06T
WMZT1C06T
Limited Stock
From
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Eaton
6
480
WMZT1C07T
WMZT1C07T
Limited Stock
From
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Eaton
7
480
WMZT1C08T
WMZT1C08T
Limited Stock
From
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Eaton
8
480
WMZT1C13T
WMZT1C13T
Limited Stock
From
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Eaton
13
480
WMZT1C16T
WMZT1C16T
Limited Stock
From
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Eaton
16
480
WMZT1C25T
WMZT1C25T
Limited Stock
From
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Eaton
25
480
WMZT1C30T
WMZT1C30T
Limited Stock
From
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Eaton
30
480
WMZT1C32T
WMZT1C32T
Limited Stock
From
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Eaton
32
480
WMZT1C40T
WMZT1C40T
Limited Stock
From
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Eaton
40
480
WMZT1D02T
WMZT1D02T
Limited Stock
From
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Eaton
2
480
WMZT1D04T
WMZT1D04T
Limited Stock
From
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Eaton
4
480
WMZT1D05T
WMZT1D05T
Limited Stock
From
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Eaton
5
480
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.