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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
S281UC-Z8
S281UC-Z8
Limited Stock
From
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ABB
8
500
S281UCB10
S281UCB10
Limited Stock
From
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ABB
10
230
S281UCB16
S281UCB16
Limited Stock
From
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ABB
16
230
S281UCB20
S281UCB20
Limited Stock
From
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ABB
20
230
S281UCB25
S281UCB25
Limited Stock
From
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ABB
25
230
S281UCB6
S281UCB6
Limited Stock
From
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ABB
6
230
S281UCK16
S281UCK16
Limited Stock
From
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ABB
16
230
S281UCK2
S281UCK2
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ABB
2
230
S281UCK3
S281UCK3
Limited Stock
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ABB
3
230
S281UCK40
S281UCK40
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ABB
40
230
S281UCK8
S281UCK8
Limited Stock
From
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ABB
8
230
S282-Z1
S282-Z1
Limited Stock
From
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ABB
1
400
S282-Z2
S282-Z2
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From
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ABB
2
400
S282-Z25
S282-Z25
Limited Stock
From
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ABB
25
400
S282-Z3
S282-Z3
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From
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ABB
3
400
S282-Z32
S282-Z32
Limited Stock
From
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ABB
32
400
S282-Z4
S282-Z4
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From
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ABB
4
400
S282-Z40
S282-Z40
Limited Stock
From
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ABB
40
400
S282-Z50
S282-Z50
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From
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ABB
50
400
S282-Z6
S282-Z6
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ABB
6
400
S282-Z63
S282-Z63
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From
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ABB
63
400
S282B100T
S282B100T
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From
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ABB
100
400
S282B80
S282B80
Limited Stock
From
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ABB
80
400
S282B80T
S282B80T
Limited Stock
From
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ABB
80
400
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.