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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
SEHF36400T2
SEHF36400T2
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Square D
400
SEHF36400T3
SEHF36400T3
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Schneider Electric
400
SEHF36400T4
SEHF36400T4
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Square D
400
SEHF36400V1
SEHF36400V1
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Schneider Electric
400
SEHF36600
SEHF36600
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Square D
600
SEHF36600A4
SEHF36600A4
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Schneider Electric
600
SEHF36600A8
SEHF36600A8
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Square D
600
SEHF36600B8
SEHF36600B8
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Schneider Electric
600
SEHF36600C4
SEHF36600C4
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Square D
600
SEHF36600C8
SEHF36600C8
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Schneider Electric
600
SEHF36600D4
SEHF36600D4
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Square D
600
SEHF36600D8
SEHF36600D8
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Schneider Electric
600
SEHF36600E4
SEHF36600E4
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Schneider Electric
600
SEHF36600E8
SEHF36600E8
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Square D
600
SEHF36600ES1
SEHF36600ES1
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Schneider Electric
600
SEHF36600ES1A4
SEHF36600ES1A4
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Square D
600
SEHF36600ES1A8
SEHF36600ES1A8
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Schneider Electric
600
SEHF36600ES1B4
SEHF36600ES1B4
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Square D
600
SEHF36600ES1B8
SEHF36600ES1B8
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Square D
600
SEHF36600ES1C4
SEHF36600ES1C4
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Schneider Electric
600
SEHF36600ES1C8
SEHF36600ES1C8
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Square D
600
SEHF36600ES1D4
SEHF36600ES1D4
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Square D
600
SEHF36600ES1D5
SEHF36600ES1D5
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Schneider Electric
600
SEHF36600ES1D8
SEHF36600ES1D8
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From
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Square D
600

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.