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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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Part Number
PRICE
Manufacturer
Amperage
SSF6G9K31
SSF6G9K31
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General Electric
4000
SSF6G9K32
SSF6G9K32
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General Electric
4000
SSF6G9K3U
SSF6G9K3U
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General Electric
4000
SSF6G9K3W
SSF6G9K3W
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General Electric
4000
SSF6G9K41
SSF6G9K41
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General Electric
4000
SSF6G9K42
SSF6G9K42
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General Electric
4000
SSF6G9K4U
SSF6G9K4U
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General Electric
4000
SSF6G9K4W
SSF6G9K4W
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General Electric
4000
SSF6G9K61
SSF6G9K61
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General Electric
4000
SSF6G9K62
SSF6G9K62
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General Electric
4000
SSF6G9K6U
SSF6G9K6U
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General Electric
4000
SSF6G9K6W
SSF6G9K6W
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General Electric
4000
SSF6G9K71
SSF6G9K71
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General Electric
4000
SSF6G9K72
SSF6G9K72
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General Electric
4000
SSF6G9K7U
SSF6G9K7U
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General Electric
4000
SSF6G9K7W
SSF6G9K7W
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General Electric
4000
SSF6G9K81
SSF6G9K81
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General Electric
4000
SSF6G9K82
SSF6G9K82
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General Electric
4000
SSF6G9K8U
SSF6G9K8U
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General Electric
4000
SSF6G9K8W
SSF6G9K8W
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General Electric
4000
SSF6G9K91
SSF6G9K91
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General Electric
4000
SSF6G9K92
SSF6G9K92
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General Electric
4000
SSF6G9K9U
SSF6G9K9U
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General Electric
4000
SSF6G9K9W
SSF6G9K9W
Limited Stock
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General Electric
4000

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.