Thread: HP/Amps
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Rollie Rollie is offline
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Default HP/Amps

Maybe they stamped the motor with a ball-park reading, with a clamp on
ampmeter it will only draw 8A when on full load... I like grizzly tools,
they've been good to me. Lots of luck


wrote in message
...
My new edge sander was delivered today, Grizzly 6x80. In the version
of the manual on the website they list it as 1.5 HP 16A/8A. But in
the manual that came with it and on the nameplate on the motor it says
1.5 HP 20A/10A.

Now I should probably run a dedicated 220V line to it regardless, but
for the time being I thought I was going to be fine on my 20A 110V
circuit. I just think it's very weird because if it's really drawing
20A then why are they calling it 1.5 HP? 20A should give 2 HP. I was
under the impression that they couldn't lie about the amps, but HP
ratings were more fudge-able. It's a 1725 RPM motor, and looking at
the motors Grizzly has in their catalog the 1.5 HP 1725RPM model draws
17A, whereas the 3450RPM draws 15.6. So I suppose that can explain a
bit of why the number is higher than I expect, but not all of it.
Have they just found a new source of really inefficient motors?

I wired it for 110 and it ran fine with no belt on it, but that
doesn't really mean anything. I need to build a stand for it and get
it up on that before I start bolting on all the tables and whatnot so
it's going to be a while before I can test it under load.