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3 Phase GFCI for portable tools

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ireece

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Location
400-5110 Creekbank Road, Mississauga, ON. L4W 0A1
I have a concrete cutting contractor that requires a 3 Phase GFCI 20 amp for his portable wet cutting saw, he's using a gas powered generor for the supply. Is there such a device on the market that can trip out at 5ma?

Also can the GFCI work without a load neutral?
Thanks,
Ian Reece, Ontario Canada
 
Jraef

Jraef

Moderator, OTD
Staff member
Location
San Francisco Bay Area, CA, USA
Occupation
Electrical Engineer
5mA isn't likely going to work, but it's probably not required either. There is a whole new class of GFCIs now for things like this, read this article and see which class of GFCI applies, then do a search for that class of GFCI. Most mfrs have released products now to fill this requirement.
 
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spark master

Senior Member
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Extension Cord

Extension Cord

I have the same question. I came across a portable machine, 3phase. 208v 20a extension cord that is ran outside the building. L15-20 twist lock extension cord, 100' long. 14-4 or 12-4 extension SJ cord. They wheel the machine outside on nice days, and cut material. Does this need a GFI ?

Is there a 3 phase GFI that will work with a motor starter?
 
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