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-   -   Minimum wattage needed to operate tool (http://www.houserepairtalk.com/f9/minimum-wattage-needed-operate-tool-14439/)

Giles 07-22-2012 02:19 PM

Minimum wattage needed to operate tool
 
I have a 120V electric impact wrench that pulls 7.5 Amps.
What is the lowest wattage portable generator that I can use to operate the wrench?:confused:

piper27 07-22-2012 03:35 PM

Watts= volts x amps
120 x 7.5= 900watts

Giles 07-22-2012 04:10 PM

Quote:

Originally Posted by piper27 (Post 75338)
Watts= volts x amps
120 x 7.5= 900watts

THANKS---I should have known that---I'll blame it on "senior moment":)

JoeD 07-22-2012 06:09 PM

900 watts is the supposed full load of the tool. I would add at least 20% for the generator required. That's 1080 watts. You should be looking for 1100-1200 watt unit.


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