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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
WMS3C32
WMS3C32
Limited Stock
From
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Eaton
32
480
WMS3D00
WMS3D00
Limited Stock
From
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Eaton
0.5
480
WMS3D08
WMS3D08
Limited Stock
From
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Eaton
8
480
WMS3D32
WMS3D32
Limited Stock
From
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Eaton
32
480
XO220GFI
XO220GFI
Limited Stock
From
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Cutler Hammer
20
240
Z10A
Z10A
Limited Stock
From
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ABB
10
480
Z16A
Z16A
Limited Stock
From
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ABB
16
480
Z20A
Z20A
Limited Stock
From
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ABB
20
480
Z32A
Z32A
Limited Stock
From
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ABB
32
480
Z3A
Z3A
Limited Stock
From
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ABB
3
480
Z40A
Z40A
Limited Stock
From
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ABB
40
480
Z50A
Z50A
Limited Stock
From
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ABB
50
480
3VA2110-0KQ32-0AA0
3VA2110-0KQ32-0AA0
Limited Stock
From
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Siemens
-
-
5SX22C32
5SX22C32
Limited Stock
From
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Siemens
32
400
5SX23-D3
5SX23-D3
Limited Stock
From
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Siemens
3
400
BGA24025Y2
BGA24025Y2
Limited Stock
From
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Square D
-
-
RLF36160U63A
RLF36160U63A
Limited Stock
From
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Square D
-
-
SU202M-C1
SU202M-C1
Limited Stock
From
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ABB
-
-
SU202M-C16
SU202M-C16
Limited Stock
From
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ABB
-
-
11115L
11115L
Limited Stock
From
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Bulldog
15
120
2C03UL
2C03UL
Limited Stock
From
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Altech Corp
-
-
2C15UL
2C15UL
Limited Stock
From
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Altech Corp
-
-
2CU20R
2CU20R
Limited Stock
From
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Altech Corp
-
-
3RV2332-4DC10
3RV2332-4DC10
Limited Stock
From
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Siemens
-
-
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.