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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
S203-B50
S203-B50
Limited Stock
From
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ABB
50
480
S203-B63
S203-B63
Limited Stock
From
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ABB
63
480
S203-C1.6
S203-C1.6
Limited Stock
From
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ABB
1.6
480
S203-C25
S203-C25
Limited Stock
From
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ABB
25
480
S203-C8NA
S203-C8NA
Limited Stock
From
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ABB
8
480
S203-D50
S203-D50
Limited Stock
From
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ABB
50
480
S203-D63
S203-D63
Limited Stock
From
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ABB
63
480
S203-D8
S203-D8
Limited Stock
From
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ABB
8
480
S203-K1
S203-K1
Limited Stock
From
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ABB
1
480
S281-UCK6
S281-UCK6
Limited Stock
From
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ABB
6
230
S281UC-K25
S281UC-K25
Limited Stock
From
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ABB
25
230
S282UC-B16
S282UC-B16
Limited Stock
From
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ABB
16
400
S3N015TL
S3N015TL
Limited Stock
From
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ABB
15
600
S7H-3P-1000A
S7H-3P-1000A
Limited Stock
From
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ABB
1000
600
S801S-B100
S801S-B100
Limited Stock
From
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ABB
100
690
S801S-B125
S801S-B125
Limited Stock
From
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ABB
125
690
S801S-B20
S801S-B20
Limited Stock
From
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ABB
20
690
S801S-B32
S801S-B32
Limited Stock
From
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ABB
32
690
S801S-B63
S801S-B63
Limited Stock
From
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ABB
63
690
S801S-B80
S801S-B80
Limited Stock
From
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ABB
80
690
S801S-C125
S801S-C125
Limited Stock
From
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ABB
125
690
S801S-C80
S801S-C80
Limited Stock
From
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ABB
80
690
S801S-D10
S801S-D10
Limited Stock
From
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ABB
10
690
S801S-D16
S801S-D16
Limited Stock
From
Get Price
ABB
16
690
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.