Help! Will it hurt my 2hp cab. saw if I run it on a 30amp breaker?

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Forum topic by jeff73 posted 09-23-2011 09:34 PM 995 views 0 times favorited 6 replies Add to Favorites Watch
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4 posts in 2436 days

09-23-2011 09:34 PM

Just wiring my shop for my latest shop aquisition, a 2 hp jet cabinet saw. I have a 30 amp breaker in hand. Is it harmful to the run the saw on so much amperage?

6 replies so far

View lew's profile


12060 posts in 3754 days

#1 posted 09-23-2011 09:40 PM

The amp rating is the MAXIMUM current you can draw through the circuit. The saw will only take what it “needs” to run.
If you use a 30 amp breaker, make certain you use the correct wire size for that amperage.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View Fred Hargis's profile

Fred Hargis

4986 posts in 2492 days

#2 posted 09-23-2011 09:48 PM

Absolutely no problem at all. As mentioned, that 30 amp needs #10 wire running to the outlet. But any of your 240V tools can run on it.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Richard's profile


1916 posts in 2689 days

#3 posted 09-23-2011 10:02 PM

Not at all, like lew said it only takes what it needs. What might hurt is to run a 20amp machine on a 15amp line as it might run but not very well and then you would be popping the breaker all day as well.

View jeff73's profile


4 posts in 2436 days

#4 posted 09-24-2011 12:17 AM

Thanks for the replies! Sounds good. I have 8-3 wire with a separate 10ga ground wire running temporarily since the shop is about 70 feet from house. I picked up some 4ga wire that I havent had a chance to hook up so i think this will hold me over for a bit.

The manual says it has an overload switch so i will breathe easy.

I just signed up on this sight and DANG it is great. Will be back at this sight often.

View TopamaxSurvivor's profile


18271 posts in 3675 days

#5 posted 09-24-2011 12:25 AM

You didn’t mention the operating voltage. The code allows for 50 amp on 120 v and 25 on 240. Since very few brands make a 25, 30 is the next standard size. With #8 yoiu should not have any low voltage problems.

BTW, WElocme to LJ!!

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View jeff73's profile


4 posts in 2436 days

#6 posted 09-24-2011 03:20 AM

Aha so I guess its the 30 afterall! I am running 240v

thanks Topamaxsurvivor

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