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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
MPH242W25
MPH242W25
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General Electric
2500
MPH242W32
MPH242W32
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General Electric
3200
MPH242W40
MPH242W40
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General Electric
4000
MPH32F08
MPH32F08
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General Electric
800
MPH32F10
MPH32F10
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General Electric
1000
MPH32F12
MPH32F12
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General Electric
1250
MPH32F16
MPH32F16
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General Electric
1600
MPH32F20
MPH32F20
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General Electric
2000
MPH32F25
MPH32F25
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General Electric
2500
MPH32F32
MPH32F32
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General Electric
3200
MPH32F40
MPH32F40
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General Electric
4000
MPH32M08
MPH32M08
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General Electric
800
MPH32M10
MPH32M10
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General Electric
1000
MPH32M12
MPH32M12
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General Electric
1250
MPH32M16
MPH32M16
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General Electric
1600
MPH32M20
MPH32M20
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General Electric
2000
MPH32M25
MPH32M25
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General Electric
2500
MPH32M32
MPH32M32
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General Electric
3200
MPH32M40
MPH32M40
Limited Stock
From
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General Electric
4000
MPH32W08
MPH32W08
Limited Stock
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General Electric
800
MPH32W10
MPH32W10
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General Electric
1000
MPH32W12
MPH32W12
Limited Stock
From
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General Electric
1250
MPH32W16
MPH32W16
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General Electric
1600
MPH32W20
MPH32W20
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From
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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.