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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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Manufacturer
Amperage
SSB1G237H
SSB1G237H
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General Electric
400
SSB1G238B
SSB1G238B
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General Electric
400
SSB1G238C
SSB1G238C
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General Electric
400
SSB1G238D
SSB1G238D
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General Electric
400
SSB1G238E
SSB1G238E
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General Electric
400
SSB1G238F
SSB1G238F
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General Electric
400
SSB1G238H
SSB1G238H
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General Electric
400
SSB1G239B
SSB1G239B
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General Electric
400
SSB1G239C
SSB1G239C
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General Electric
400
SSB1G239D
SSB1G239D
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General Electric
400
SSB1G239E
SSB1G239E
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General Electric
400
SSB1G239F
SSB1G239F
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General Electric
400
SSB1G239H
SSB1G239H
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General Electric
400
SSB1G251B
SSB1G251B
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General Electric
400
SSB1G251C
SSB1G251C
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General Electric
400
SSB1G251D
SSB1G251D
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General Electric
400
SSB1G251E
SSB1G251E
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General Electric
400
SSB1G251F
SSB1G251F
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General Electric
400
SSB1G251H
SSB1G251H
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General Electric
400
SSB1G252B
SSB1G252B
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General Electric
400
SSB1G252C
SSB1G252C
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General Electric
400
SSB1G252D
SSB1G252D
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General Electric
400
SSB1G252E
SSB1G252E
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General Electric
400
SSB1G252F
SSB1G252F
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General Electric
400

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.