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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
MPH232W25
MPH232W25
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General Electric
2500
MPH232W32
MPH232W32
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General Electric
3200
MPH232W40
MPH232W40
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General Electric
4000
MPH242F08
MPH242F08
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General Electric
800
MPH242F10
MPH242F10
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General Electric
1000
MPH242F12
MPH242F12
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General Electric
1250
MPH242F16
MPH242F16
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General Electric
1600
MPH242F20
MPH242F20
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General Electric
2000
MPH242F25
MPH242F25
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General Electric
2500
MPH242F32
MPH242F32
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General Electric
3200
MPH242F40
MPH242F40
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General Electric
4000
MPH242M08
MPH242M08
Limited Stock
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General Electric
800
MPH242M10
MPH242M10
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General Electric
1000
MPH242M12
MPH242M12
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General Electric
1250
MPH242M16
MPH242M16
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General Electric
1600
MPH242M20
MPH242M20
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General Electric
2000
MPH242M25
MPH242M25
Limited Stock
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General Electric
2500
MPH242M32
MPH242M32
Limited Stock
From
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General Electric
3200
MPH242M40
MPH242M40
Limited Stock
From
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General Electric
4000
MPH242W08
MPH242W08
Limited Stock
From
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General Electric
800
MPH242W10
MPH242W10
Limited Stock
From
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General Electric
1000
MPH242W12
MPH242W12
Limited Stock
From
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General Electric
1250
MPH242W16
MPH242W16
Limited Stock
From
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General Electric
1600
MPH242W20
MPH242W20
Limited Stock
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.