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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
PRICE
Manufacturer
Amperage
Poles
SEF36300LSIGV1
SEF36300LSIGV1
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Square D
300
3
SEF36300LSIMR
SEF36300LSIMR
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Square D
300
3
SEF36300LSIS1
SEF36300LSIS1
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Square D
300
3
SEF36300LSIS2
SEF36300LSIS2
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Schneider Electric
300
3
SEF36300LSIS3
SEF36300LSIS3
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Schneider Electric
300
3
SEF36300LSIS4
SEF36300LSIS4
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Square D
300
3
SEF36300LSIT1
SEF36300LSIT1
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Schneider Electric
300
3
SEF36300LSIT2
SEF36300LSIT2
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Square D
300
3
SEF36300LSIT3
SEF36300LSIT3
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Schneider Electric
300
3
SEF36300LSIT4
SEF36300LSIT4
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Schneider Electric
300
3
SEF36300LSIV1
SEF36300LSIV1
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Schneider Electric
300
3
SEF36300LSMR
SEF36300LSMR
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Square D
300
3
SEF36300LSS1
SEF36300LSS1
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Schneider Electric
300
3
SEF36300LSS2
SEF36300LSS2
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Schneider Electric
300
3
SEF36300LSS3
SEF36300LSS3
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Schneider Electric
300
3
SEF36300LSS4
SEF36300LSS4
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Schneider Electric
300
3
SEF36300LST1
SEF36300LST1
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Square D
300
3
SEF36300LST2
SEF36300LST2
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Schneider Electric
300
3
SEF36300LST3
SEF36300LST3
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Square D
300
3
SEF36300LST4
SEF36300LST4
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Square D
300
3
SEF36300LSV1
SEF36300LSV1
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Schneider Electric
300
3
SEF36300MR
SEF36300MR
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Square D
300
3
SEF36300S1
SEF36300S1
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Schneider Electric
300
3
SEF36300S2
SEF36300S2
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Schneider Electric
300
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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