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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
SHD2G489N
SHD2G489N
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General Electric
1000
SHD2G489P
SHD2G489P
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General Electric
1000
SHD2G491H
SHD2G491H
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General Electric
1000
SHD2G491K
SHD2G491K
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General Electric
1000
SHD2G491N
SHD2G491N
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General Electric
1000
SHD2G491P
SHD2G491P
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General Electric
1000
SHD2G492H
SHD2G492H
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General Electric
1000
SHD2G492K
SHD2G492K
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General Electric
1000
SHD2G492N
SHD2G492N
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General Electric
1000
SHD2G492P
SHD2G492P
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General Electric
1000
SHD2G493H
SHD2G493H
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General Electric
1000
SHD2G493K
SHD2G493K
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General Electric
1000
SHD2G493N
SHD2G493N
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General Electric
1000
SHD2G493P
SHD2G493P
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General Electric
1000
SHD2G494H
SHD2G494H
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General Electric
1000
SHD2G494K
SHD2G494K
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General Electric
1000
SHD2G494N
SHD2G494N
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General Electric
1000
SHD2G494P
SHD2G494P
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General Electric
1000
SHD2G496H
SHD2G496H
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General Electric
1000
SHD2G496K
SHD2G496K
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General Electric
1000
SHD2G496N
SHD2G496N
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General Electric
1000
SHD2G496P
SHD2G496P
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General Electric
1000
SHD2G497H
SHD2G497H
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General Electric
1000
SHD2G497K
SHD2G497K
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General Electric
1000

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.