400 amp 3 phase 120/240 question.

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Re: 400 amp 3 phase 120/240 question.

sparkyinak #191904 01/17/10 10:12 PM

Joined: Jan 2004

Posts: 171

NW Indiana

M

Merlin

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Member

Am I allowed to size according to breaker size at 80%? Therefore allowing me to use 350 MCM. Or would I have to use 100% rating? Thats how I read the code one minute, but the next I'm second guessing myself!

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Entire Thread
Subject	Posted By	Posted
400 amp 3 phase 120/240 question.	Merlin	01/18/10 01:10 AM
Re: 400 amp 3 phase 120/240 question.	sparkyinak	01/18/10 01:26 AM
Re: 400 amp 3 phase 120/240 question.	Merlin	01/18/10 01:33 AM
Re: 400 amp 3 phase 120/240 question.	sparkyinak	01/18/10 01:51 AM
Re: 400 amp 3 phase 120/240 question.	sparkyinak	01/18/10 02:03 AM
Re: 400 amp 3 phase 120/240 question.	Merlin	01/18/10 02:12 AM
Re: 400 amp 3 phase 120/240 question.	frenchelectrican	01/18/10 02:49 AM

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ECN Forum Forums Code Related Discussion NEC & other Code issues 400 amp 3 phase 120/240 question.