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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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Manufacturer
Amperage
SHB5G8N41
SHB5G8N41
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General Electric
3000
SHB5G8N42
SHB5G8N42
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General Electric
3000
SHB5G8N4R
SHB5G8N4R
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General Electric
3000
SHB5G8N4U
SHB5G8N4U
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General Electric
3000
SHB5G8N4W
SHB5G8N4W
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General Electric
3000
SHB5G8N61
SHB5G8N61
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General Electric
3000
SHB5G8N62
SHB5G8N62
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General Electric
3000
SHB5G8N6R
SHB5G8N6R
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General Electric
3000
SHB5G8N6U
SHB5G8N6U
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General Electric
3000
SHB5G8N6W
SHB5G8N6W
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General Electric
3000
SHB5G8N71
SHB5G8N71
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General Electric
3000
SHB5G8N72
SHB5G8N72
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General Electric
3000
SHB5G8N7R
SHB5G8N7R
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General Electric
3000
SHB5G8N7U
SHB5G8N7U
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General Electric
3000
SHB5G8N7W
SHB5G8N7W
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General Electric
3000
SHB5G8N81
SHB5G8N81
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General Electric
3000
SHB5G8N82
SHB5G8N82
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General Electric
3000
SHB5G8N8R
SHB5G8N8R
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General Electric
3000
SHB5G8N8U
SHB5G8N8U
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General Electric
3000
SHB5G8N8W
SHB5G8N8W
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General Electric
3000
SHB5G8N91
SHB5G8N91
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General Electric
3000
SHB5G8N92
SHB5G8N92
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General Electric
3000
SHB5G8N9R
SHB5G8N9R
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General Electric
3000
SHB5G8N9U
SHB5G8N9U
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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.