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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
SSB4G4Z7P
SSB4G4Z7P
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General Electric
1000
SSB4G4Z8H
SSB4G4Z8H
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General Electric
1000
SSB4G4Z8K
SSB4G4Z8K
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General Electric
1000
SSB4G4Z8N
SSB4G4Z8N
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General Electric
1000
SSB4G4Z8P
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General Electric
1000
SSB4G4Z9H
SSB4G4Z9H
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General Electric
1000
SSB4G4Z9K
SSB4G4Z9K
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General Electric
1000
SSB4G4Z9N
SSB4G4Z9N
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General Electric
1000
SSB4G4Z9P
SSB4G4Z9P
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General Electric
1000
SSB4G611M
SSB4G611M
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General Electric
2000
SSB4G611N
SSB4G611N
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General Electric
2000
SSB4G611P
SSB4G611P
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General Electric
2000
SSB4G611R
SSB4G611R
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General Electric
2000
SSB4G611T
SSB4G611T
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General Electric
2000
SSB4G611U
SSB4G611U
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General Electric
2000
SSB4G611W
SSB4G611W
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General Electric
2000
SSB4G612M
SSB4G612M
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General Electric
2000
SSB4G612N
SSB4G612N
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General Electric
2000
SSB4G612P
SSB4G612P
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General Electric
2000
SSB4G612R
SSB4G612R
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General Electric
2000
SSB4G612T
SSB4G612T
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General Electric
2000
SSB4G612U
SSB4G612U
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General Electric
2000
SSB4G612W
SSB4G612W
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General Electric
2000
SSB4G613M
SSB4G613M
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General Electric
2000

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.