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Insulated Case Circuit Breaker

For circuit breaker applications in commercial and industrial power distribution systems, insulated case circuit breakers are among the most critical components for reliable overcurrent protection and system safety. Insulated case circuit breakers provide adjustable trip settings and high interrupting capacity while offering compact installation in panelboards and switchboards. Electrical.com carries an extensive selection of insulated 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, industrial facilities, data centers, and healthcare infrastructure applications.
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Part Number
PRICE
Manufacturer
Amperage
SEHF36250LSMR
SEHF36250LSMR
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Square D
250
SEHF36250LSS1
SEHF36250LSS1
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Square D
250
SEHF36250LSS2
SEHF36250LSS2
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Schneider Electric
250
SEHF36250LSS3
SEHF36250LSS3
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Square D
250
SEHF36250LSS4
SEHF36250LSS4
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Square D
250
SEHF36250LST1
SEHF36250LST1
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Square D
250
SEHF36250LST2
SEHF36250LST2
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Schneider Electric
250
SEHF36250LST3
SEHF36250LST3
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Square D
250
SEHF36250LST4
SEHF36250LST4
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Schneider Electric
250
SEHF36250LSV1
SEHF36250LSV1
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Schneider Electric
250
SEHF36250MR
SEHF36250MR
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Square D
250
SEHF36250S1
SEHF36250S1
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Square D
250
SEHF36250S2
SEHF36250S2
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Square D
250
SEHF36250S3
SEHF36250S3
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Square D
250
SEHF36250S4
SEHF36250S4
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Square D
250
SEHF36250T1
SEHF36250T1
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Schneider Electric
250
SEHF36250T2
SEHF36250T2
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Schneider Electric
250
SEHF36250T3
SEHF36250T3
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Schneider Electric
250
SEHF36250T4
SEHF36250T4
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Square D
250
SEHF36250V1
SEHF36250V1
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Schneider Electric
250
SEHF36300
SEHF36300
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Square D
300
SEHF363000
SEHF363000
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Square D
3000
SEHF363000A4
SEHF363000A4
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Schneider Electric
3000
SEHF363000A8
SEHF363000A8
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Square D
3000

Electrical.com stocks the largest inventory of insulated case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit breakers available for immediate shipment. From low voltage to medium voltage applications, we have the insulated case breakers you need when others say no. Our comprehensive insulated case circuit breaker inventory spans all amperage ratings, voltage classes, and frame sizes 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 insulated case circuit breakers serve critical applications across industrial power distribution systems, manufacturing facilities, commercial buildings, data centers, utility substations, process control installations, and heavy industrial equipment.


Whether you're maintaining legacy electrical systems with obsolete insulated case breaker models or sourcing current production breakers for new installations and upgrades, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need insulated 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.