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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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SHB4G663P
SHB4G663P
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General Electric
2000
SHB4G663R
SHB4G663R
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General Electric
2000
SHB4G663T
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General Electric
2000
SHB4G663U
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General Electric
2000
SHB4G663W
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General Electric
2000
SHB4G664M
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General Electric
2000
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General Electric
2000
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General Electric
2000
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General Electric
2000
SHB4G664T
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General Electric
2000
SHB4G664U
SHB4G664U
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General Electric
2000
SHB4G664W
SHB4G664W
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General Electric
2000
SHB4G666M
SHB4G666M
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General Electric
2000
SHB4G666N
SHB4G666N
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General Electric
2000
SHB4G666P
SHB4G666P
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General Electric
2000
SHB4G666R
SHB4G666R
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General Electric
2000
SHB4G666T
SHB4G666T
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General Electric
2000
SHB4G666U
SHB4G666U
Limited Stock
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General Electric
2000
SHB4G666W
SHB4G666W
Limited Stock
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General Electric
2000
SHB4G667M
SHB4G667M
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General Electric
2000
SHB4G667N
SHB4G667N
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General Electric
2000
SHB4G667P
SHB4G667P
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General Electric
2000
SHB4G667R
SHB4G667R
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General Electric
2000
SHB4G667T
SHB4G667T
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General Electric
2000

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.