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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
MPD42M32
MPD42M32
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General Electric
3200
MPD42M40
MPD42M40
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General Electric
4000
MPD42W32
MPD42W32
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General Electric
3200
MPD42W40
MPD42W40
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General Electric
4000
MPH232F08
MPH232F08
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General Electric
800
MPH232F10
MPH232F10
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General Electric
1000
MPH232F12
MPH232F12
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General Electric
1250
MPH232F16
MPH232F16
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General Electric
1600
MPH232F20
MPH232F20
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General Electric
2000
MPH232F25
MPH232F25
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General Electric
2500
MPH232F32
MPH232F32
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General Electric
3200
MPH232F40
MPH232F40
Limited Stock
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General Electric
4000
MPH232M08
MPH232M08
Limited Stock
From
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General Electric
800
MPH232M10
MPH232M10
Limited Stock
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General Electric
1000
MPH232M12
MPH232M12
Limited Stock
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General Electric
1250
MPH232M20
MPH232M20
Limited Stock
From
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General Electric
2000
MPH232M25
MPH232M25
Limited Stock
From
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General Electric
2500
MPH232M32
MPH232M32
Limited Stock
From
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General Electric
3200
MPH232M40
MPH232M40
Limited Stock
From
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General Electric
4000
MPH232W08
MPH232W08
Limited Stock
From
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General Electric
800
MPH232W10
MPH232W10
Limited Stock
From
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General Electric
1000
MPH232W12
MPH232W12
Limited Stock
From
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General Electric
1250
MPH232W16
MPH232W16
Limited Stock
From
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General Electric
1600
MPH232W20
MPH232W20
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.