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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
SHD5G854R
SHD5G854R
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General Electric
3000
SHD5G854U
SHD5G854U
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General Electric
3000
SHD5G854W
SHD5G854W
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General Electric
3000
SHD5G8562
SHD5G8562
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General Electric
3000
SHD5G856R
SHD5G856R
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General Electric
3000
SHD5G856U
SHD5G856U
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General Electric
3000
SHD5G856W
SHD5G856W
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General Electric
3000
SHD5G8572
SHD5G8572
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General Electric
3000
SHD5G857R
SHD5G857R
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General Electric
3000
SHD5G857U
SHD5G857U
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General Electric
3000
SHD5G857W
SHD5G857W
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General Electric
3000
SHD5G8582
SHD5G8582
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General Electric
3000
SHD5G858R
SHD5G858R
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General Electric
3000
SHD5G858U
SHD5G858U
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General Electric
3000
SHD5G858W
SHD5G858W
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General Electric
3000
SHD5G8591
SHD5G8591
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General Electric
3000
SHD5G8592
SHD5G8592
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General Electric
3000
SHD5G859R
SHD5G859R
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General Electric
3000
SHD5G859U
SHD5G859U
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General Electric
3000
SHD5G859W
SHD5G859W
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General Electric
3000
SHD5G8611
SHD5G8611
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General Electric
3000
SHD5G8612
SHD5G8612
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General Electric
3000
SHD5G861R
SHD5G861R
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General Electric
3000
SHD5G861U
SHD5G861U
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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.