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480 volt 3 phase hot water heater (for shower use) #193937
04/29/10 10:58 AM
04/29/10 10:58 AM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 849
Michigan
Question came up . Is GFI required.
I;d say No .
Comes under 422

2017 / 2014 NEC & Related Books and Study Guides
Re: 480 volt 3 phase hot water heater (for shower use) [Re: Yoopersup] #193938
04/29/10 06:50 PM
04/29/10 06:50 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 7,050
Brick, NJ USA
Agree.


John
Re: 480 volt 3 phase hot water heater (for shower use) [Re: Yoopersup] #193940
04/30/10 01:16 AM
04/30/10 01:16 AM
F
frenchelectrican  Offline
Member
Joined: Feb 2003
Posts: 939
Wi/ Paris France { France for ...
No you do not need RCD { GFCI } with triphase waterheater unless the manufacter specifed in the installment manual or cut sheet.

Merci,Marc


Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)


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