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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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Amperage
SHB5G8M82
SHB5G8M82
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General Electric
3000
SHB5G8M8R
SHB5G8M8R
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General Electric
3000
SHB5G8M8U
SHB5G8M8U
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General Electric
3000
SHB5G8M8W
SHB5G8M8W
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General Electric
3000
SHB5G8M91
SHB5G8M91
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General Electric
3000
SHB5G8M92
SHB5G8M92
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General Electric
3000
SHB5G8M9R
SHB5G8M9R
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General Electric
3000
SHB5G8M9U
SHB5G8M9U
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General Electric
3000
SHB5G8M9W
SHB5G8M9W
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General Electric
3000
SHB5G8N11
SHB5G8N11
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General Electric
3000
SHB5G8N12
SHB5G8N12
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General Electric
3000
SHB5G8N1R
SHB5G8N1R
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General Electric
3000
SHB5G8N1U
SHB5G8N1U
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General Electric
3000
SHB5G8N1W
SHB5G8N1W
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General Electric
3000
SHB5G8N21
SHB5G8N21
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General Electric
3000
SHB5G8N22
SHB5G8N22
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General Electric
3000
SHB5G8N2R
SHB5G8N2R
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General Electric
3000
SHB5G8N2U
SHB5G8N2U
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General Electric
3000
SHB5G8N2W
SHB5G8N2W
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General Electric
3000
SHB5G8N31
SHB5G8N31
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General Electric
3000
SHB5G8N32
SHB5G8N32
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General Electric
3000
SHB5G8N3R
SHB5G8N3R
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General Electric
3000
SHB5G8N3U
SHB5G8N3U
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General Electric
3000
SHB5G8N3W
SHB5G8N3W
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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.