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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
SED36250LSES9E8
SED36250LSES9E8
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Schneider Electric
250
SED36250LSES9F4
SED36250LSES9F4
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Schneider Electric
250
SED36250LSES9F8
SED36250LSES9F8
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250
SED36250LSET1
SED36250LSET1
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SED36250LSET2
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Schneider Electric
250
SED36250LSET3
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SED36250LSET4
SED36250LSET4
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SED36250LSET5
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SED36250LSET6
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SED36250LSET7
SED36250LSET7
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Square D
250
SED36250LSEV1
SED36250LSEV1
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250
SED36250LSF4
SED36250LSF4
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250
SED36250LSF8
SED36250LSF8
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Square D
250
SED36250LSG
SED36250LSG
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Schneider Electric
250
SED36250LSGA8
SED36250LSGA8
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Schneider Electric
250
SED36250LSGB4
SED36250LSGB4
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Square D
250
SED36250LSGB8
SED36250LSGB8
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250
SED36250LSGC4
SED36250LSGC4
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Square D
250
SED36250LSGC8
SED36250LSGC8
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Schneider Electric
250
SED36250LSGD4
SED36250LSGD4
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Square D
250
SED36250LSGD8
SED36250LSGD8
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Square D
250
SED36250LSGE4
SED36250LSGE4
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Square D
250
SED36250LSGE8
SED36250LSGE8
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Square D
250
SED36250LSGES1
SED36250LSGES1
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Square D
250

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.