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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
SHD2G536U
SHD2G536U
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General Electric
1600
SHD2G537K
SHD2G537K
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General Electric
1600
SHD2G537N
SHD2G537N
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General Electric
1600
SHD2G537P
SHD2G537P
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General Electric
1600
SHD2G537Q
SHD2G537Q
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General Electric
1600
SHD2G537R
SHD2G537R
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General Electric
1600
SHD2G537T
SHD2G537T
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General Electric
1600
SHD2G537U
SHD2G537U
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General Electric
1600
SHD2G538K
SHD2G538K
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General Electric
1600
SHD2G538N
SHD2G538N
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General Electric
1600
SHD2G538P
SHD2G538P
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General Electric
1600
SHD2G538Q
SHD2G538Q
Limited Stock
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General Electric
1600
SHD2G538R
SHD2G538R
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General Electric
1600
SHD2G538T
SHD2G538T
Limited Stock
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General Electric
1600
SHD2G538U
SHD2G538U
Limited Stock
From
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General Electric
1600
SHD2G539K
SHD2G539K
Limited Stock
From
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General Electric
1600
SHD2G539N
SHD2G539N
Limited Stock
From
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General Electric
1600
SHD2G539P
SHD2G539P
Limited Stock
From
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General Electric
1600
SHD2G539Q
SHD2G539Q
Limited Stock
From
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General Electric
1600
SHD2G539R
SHD2G539R
Limited Stock
From
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General Electric
1600
SHD2G539T
SHD2G539T
Limited Stock
From
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General Electric
1600
SHD2G539U
SHD2G539U
Limited Stock
From
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General Electric
1600
SHD2G551K
SHD2G551K
Limited Stock
From
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General Electric
1600
SHD2G551N
SHD2G551N
Limited Stock
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General Electric
1600

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.