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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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SHD5G821W
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General Electric
3000
SHD5G8221
SHD5G8221
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3000
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3000
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3000
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3000
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General Electric
3000
SHD5G8231
SHD5G8231
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General Electric
3000
SHD5G8232
SHD5G8232
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General Electric
3000
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General Electric
3000
SHD5G823U
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General Electric
3000
SHD5G823W
SHD5G823W
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General Electric
3000
SHD5G8241
SHD5G8241
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General Electric
3000
SHD5G8242
SHD5G8242
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General Electric
3000
SHD5G824R
SHD5G824R
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General Electric
3000
SHD5G824U
SHD5G824U
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General Electric
3000
SHD5G824W
SHD5G824W
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General Electric
3000
SHD5G8261
SHD5G8261
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General Electric
3000
SHD5G8262
SHD5G8262
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General Electric
3000
SHD5G826R
SHD5G826R
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General Electric
3000
SHD5G826U
SHD5G826U
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General Electric
3000
SHD5G826W
SHD5G826W
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General Electric
3000
SHD5G8271
SHD5G8271
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3000
SHD5G8272
SHD5G8272
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General Electric
3000
SHD5G827R
SHD5G827R
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General Electric
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.