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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
SHD2G432N
SHD2G432N
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General Electric
1000
SHD2G432P
SHD2G432P
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General Electric
1000
SHD2G433H
SHD2G433H
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1000
SHD2G433K
SHD2G433K
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General Electric
1000
SHD2G433N
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1000
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General Electric
1000
SHD2G434H
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1000
SHD2G434K
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General Electric
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SHD2G434N
SHD2G434N
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General Electric
1000
SHD2G434P
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General Electric
1000
SHD2G436H
SHD2G436H
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General Electric
1000
SHD2G436K
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1000
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General Electric
1000
SHD2G436P
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General Electric
1000
SHD2G437H
SHD2G437H
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General Electric
1000
SHD2G437K
SHD2G437K
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General Electric
1000
SHD2G437N
SHD2G437N
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General Electric
1000
SHD2G437P
SHD2G437P
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General Electric
1000
SHD2G438H
SHD2G438H
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General Electric
1000
SHD2G438K
SHD2G438K
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General Electric
1000
SHD2G438N
SHD2G438N
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General Electric
1000
SHD2G438P
SHD2G438P
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General Electric
1000
SHD2G439H
SHD2G439H
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General Electric
1000
SHD2G439K
SHD2G439K
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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.