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Circuit Breaker

For power distribution and electrical protection systems, circuit breakers are among the most critical components for safeguarding equipment, personnel, and facilities from electrical overloads and short circuits. Circuit breakers automatically interrupt electrical current flow when abnormal conditions are detected, protecting circuits from damage while allowing manual reset and continued operation. Electrical.com carries an extensive selection of 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
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Manufacturer
Amperage
Poles
SEF36350LST1
SEF36350LST1
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Square D
350
3
SEF36350LST2
SEF36350LST2
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Square D
350
3
SEF36350LST3
SEF36350LST3
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Schneider Electric
350
3
SEF36350LST4
SEF36350LST4
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Square D
350
3
SEF36350LSV1
SEF36350LSV1
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Square D
350
3
SEF36350MR
SEF36350MR
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Schneider Electric
350
3
SEF36350S1
SEF36350S1
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Square D
350
3
SEF36350S2
SEF36350S2
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Schneider Electric
350
3
SEF36350S3
SEF36350S3
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Schneider Electric
350
3
SEF36350S4
SEF36350S4
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Schneider Electric
350
3
SEF36350T1
SEF36350T1
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Square D
350
3
SEF36350T2
SEF36350T2
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Schneider Electric
350
3
SEF36350T3
SEF36350T3
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Square D
350
3
SEF36350T4
SEF36350T4
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Square D
350
3
SEF36350V1
SEF36350V1
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Schneider Electric
350
3
SEF36400
SEF36400
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Schneider Electric
400
3
SEF364000A4
SEF364000A4
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Square D
4000
3
SEF364000A8
SEF364000A8
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Square D
4000
3
SEF364000B4
SEF364000B4
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Schneider Electric
4000
3
SEF364000B8
SEF364000B8
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Schneider Electric
4000
3
SEF364000C4
SEF364000C4
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Schneider Electric
4000
3
SEF364000C8
SEF364000C8
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Schneider Electric
4000
3
SEF364000D4
SEF364000D4
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Schneider Electric
4000
3
SEF364000D8
SEF364000D8
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Square D
4000
3
Popular Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit protection equipment available for immediate shipment. From residential to industrial applications, across all voltage and amperage ratings, we have what you need when others say no. Our comprehensive circuit breaker inventory spans all voltage classes, amperage ratings, and pole configurations 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 circuit breakers serve critical applications across manufacturing facilities, commercial buildings, data centers, healthcare facilities, utilities and power generation, industrial plants, residential construction, telecommunications infrastructure, and process control installations.


Whether you're maintaining legacy equipment with obsolete circuit breaker models or sourcing current production components for new electrical systems, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime and keep your operations running. Need 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.

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