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HP question for routers

1K views 2 replies 2 participants last post by  BlazerGator 
#1 · (Edited by Moderator)
I was reading through a thread just now about handheld routers, specifically the desirability of having 3HP to spin a panel-raising bit. Then I thought about the HP discussions regarding table saws. In those discussions, much is usually made about how the true HP of the saw is limited to just under 2HP for 110V applications, IIRC.

My question: unless, let's say, the Triton is 220V, then shouldn't it have the same HP limitation? I don't recall having run across this issue in previous discussions. While I'm at it, I might as well inquire as to whether we now officially say 115/230, or is it still OK to use 110/220?

Just curious-for now, I'm sticking with my PC 690 and Bosch Colt.
 
#2 · (Edited by Moderator)
I believe the official standard is 120/240v +/- 5% @60hz in the US, although historically, 110/220 and 115/230 have and are still used in many places.

There is a good rule of thumb chart for hp/amps at the engineering toolbox site here:
http://www.engineeringtoolbox.com/electrical-motor-hp-amps-d_1455.html

Manufacturers claimed horsepower are typically based on 'peak' horsepower, which is meaningless. And even the current draw is sort of misleading depending on the efficiency of the motor. Typical household 120v circuits are 15 amps, and you should stay under 80% of that for normal continuous use.

Cheers,
Brad
 
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