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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
THS25225
THS25225
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General Electric
2500
THS25225E1
THS25225E1
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General Electric
2500
THS25225E2
THS25225E2
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General Electric
2500
THS25225E3
THS25225E3
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General Electric
2500
THS25225E4
THS25225E4
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General Electric
2500
THS25225E5
THS25225E5
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General Electric
2500
THS25225E6
THS25225E6
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General Electric
2500
THS252F
THS252F
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General Electric
2500
THS252L16
THS252L16
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General Electric
1600
THS252L16E1
THS252L16E1
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General Electric
1600
THS252L16E2
THS252L16E2
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General Electric
1600
THS252L16E3
THS252L16E3
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General Electric
1600
THS252L16E4
THS252L16E4
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General Electric
1600
THS252L16E5
THS252L16E5
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General Electric
1600
THS252L16E6
THS252L16E6
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General Electric
1600
THS252L18
THS252L18
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General Electric
1800
THS252L18E1
THS252L18E1
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General Electric
1800
THS252L18E2
THS252L18E2
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General Electric
1800
THS252L18E3
THS252L18E3
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General Electric
1800
THS252L18E4
THS252L18E4
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General Electric
1800
THS252L18E5
THS252L18E5
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General Electric
1800
THS252L18E6
THS252L18E6
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General Electric
1800
THS252L20
THS252L20
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General Electric
2000
THS252L20E1
THS252L20E1
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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.