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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
WMS2C15
WMS2C15
Limited Stock
From
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Eaton
15
480
WMS2C25
WMS2C25
Limited Stock
From
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Eaton
25
480
WMS2D03
WMS2D03
Limited Stock
From
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Eaton
3
480
WMS2D06
WMS2D06
Limited Stock
From
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Eaton
6
480
WMS3B08
WMS3B08
Limited Stock
From
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Eaton
8
480
WMS3C06
WMS3C06
Limited Stock
From
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Eaton
6
480
WMS3C07
WMS3C07
Limited Stock
From
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Eaton
7
480
WMS3C10
WMS3C10
Limited Stock
From
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Eaton
10
480
WMS3C15
WMS3C15
Limited Stock
From
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Eaton
15
480
WMS3C40
WMS3C40
Limited Stock
From
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Eaton
40
480
WMS3D03
WMS3D03
Limited Stock
From
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Eaton
3
480
WMS3D04
WMS3D04
Limited Stock
From
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Eaton
4
480
WMS3D05
WMS3D05
Limited Stock
From
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Eaton
5
480
WMS3D10
WMS3D10
Limited Stock
From
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Eaton
10
480
WMS3D20
WMS3D20
Limited Stock
From
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Eaton
20
480
WMS3D25
WMS3D25
Limited Stock
From
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Eaton
25
480
WMS3D30
WMS3D30
Limited Stock
From
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Eaton
30
480
WMZH1C15T
WMZH1C15T
Limited Stock
From
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Eaton
15
480
WMZH1C16
WMZH1C16
Limited Stock
From
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Eaton
16
480
WMZH1C16T
WMZH1C16T
Limited Stock
From
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Eaton
16
480
WMZH1C20
WMZH1C20
Limited Stock
From
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Eaton
20
480
WMZH1C20T
WMZH1C20T
Limited Stock
From
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Eaton
20
480
WMZH1C25
WMZH1C25
Limited Stock
From
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Eaton
25
480
WMZH1C25T
WMZH1C25T
Limited Stock
From
Get Price
Eaton
25
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.