Festool tripping breaker

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Forum topic by TropicalWW posted 06-25-2011 02:03 PM 1065 views 0 times favorited 5 replies Add to Favorites Watch
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39 posts in 2890 days

06-25-2011 02:03 PM

I have a Festool TS55 and a CT26 vac. I can’t seem to make it through even a crosscut in 3/4 ply without tripping a breaker. The circuit has nothing else running on it other than a small box fan. It’s only a 15 amp circuit, but I can’t imagine that some contractors out there don’t encounter that kind of circuit when they are working on a job site. Does anyone have any idea what I could be doing wrong, or is this normal?

Thanks so much!

5 replies so far

View Minorhero's profile


373 posts in 2843 days

#1 posted 06-25-2011 02:13 PM

That is not really surprising since according to some specs I found both tools top out at 10 amps. Meaning under full load they are trying to pull 20 amps out of your 15 amp breaker. Plus if the socket is far enough away from your breaker and the gauge of the wire not large enough it is easily possible you do not have a full 15 amps to work with.

View richgreer's profile


4541 posts in 3312 days

#2 posted 06-25-2011 02:18 PM

I have the same saw and I have the midi vac. I have used it quite a bit and I have only tripped a circuit breaker once when I was at a remote location. In my shop they run on a 20 amp circuit that I have never tripped.

Recently, I did a lot of cutting of 6/4 oak without a problem. If you are having problems with 3/4 ply, I suspect something is wrong and I would contact Festool

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View TropicalWW's profile


39 posts in 2890 days

#3 posted 06-25-2011 02:19 PM

Thanks Hero…those numbers make sense, but we’re talking 3/4 ply…..I just can’t see pulling that much power to only get through a sheet of ply. Hardwood maybe, but 3/4 ply???? :-)

View Loren's profile


10477 posts in 3886 days

#4 posted 06-25-2011 06:21 PM

If the wiring is old or not to code, it probably needs upgrading.

I’ve experienced wiring such as you describe in old houses.

View teejk's profile


1215 posts in 2922 days

#5 posted 06-26-2011 12:25 AM


14 ga/15A is still used extensively today but only where primary purpose is lighting or other low “start” and such (it’s cheaper and easier to pull)...

certainly not suitable for a shop where the “start” draw is pretty high or any location that has appliances that generate heat (toasters, hair-dryers etc.).

If he has to re-wire, I think I’d go with 10ga on a 30A breaker

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