HF 2HP DC Using 50ft Extension Cord = Lose Power?

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Forum topic by StainedSlippers posted 06-19-2011 08:35 PM 2644 views 0 times favorited 16 replies Add to Favorites Watch
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8 posts in 2887 days

06-19-2011 08:35 PM

Hey Guys,
I just bought the Harbor Freight 2HP Dust Collector and so far just have it hooked to my Griz G0715P tablesaw. Will connect to Router table, Band saw, jointer…I am using a 50ft. 15 amp extension cord with a woods remote control setup. Do I lose any power by using the extension cord?

As always, thanks again for the good info…

16 replies so far

View SCOTSMAN's profile


5849 posts in 3786 days

#1 posted 06-19-2011 08:46 PM

Yes power is affected by using a long power cord. Alistair

-- excuse my typing as I have a form of parkinsons disease

View Loren's profile


10477 posts in 3849 days

#2 posted 06-19-2011 08:46 PM

Probably yes. Use a shorter extension cord if possible.

View NBeener's profile


4816 posts in 3375 days

#3 posted 06-19-2011 09:10 PM

My gut agrees, but … wanna’ do the math ??


-- -- Neil

View Cosmicsniper's profile


2202 posts in 3360 days

#4 posted 06-20-2011 12:10 AM

2% voltage drop at most, or 1% with a cord half that length. IMHO, that’s pretty insignificant.

-- jay,

View StainedSlippers's profile


8 posts in 2887 days

#5 posted 06-20-2011 01:06 AM

(IMHO?) Ok so 2% voltage drop…right now it has a 5ft hose from the saw to the collector and will probably be 5 ft to the router table and 5 ft to bandsaw. If I were to move the dust collector closer to the outlet, I would have to increase my hoses to the machines…probably 10-15 ft each…wouldn’t I also lose suction there with the longer hoses?

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Paul Pomerleau

309 posts in 2894 days

#6 posted 06-20-2011 01:58 AM

IMHO = In My Honest Opinion.

-- Close to Ottawa Ontario Canada

View Loren's profile


10477 posts in 3849 days

#7 posted 06-20-2011 02:28 AM

Really in my experience you’re just more likely to blow your breaker with
the DC. If it runs, it runs.

View StainedSlippers's profile


8 posts in 2887 days

#8 posted 06-20-2011 03:23 AM

Great, thanks fellas…Since a 2% voltage drop sounds pretty minimal, I think I’m going to try and roll with what I have instead of rearranging the shop…as always, thanks for the great feedback.

View D_Allen's profile


495 posts in 2985 days

#9 posted 06-20-2011 03:27 AM

I had a small air compressor hooked up to a 50 ft extension cord a week ago and it just would not pull enough cutrrent to keep it running. I did trip the breaker eventually, but before that it just ran slower and heated up the cord.

-- Website is finally up and

View dbhost's profile


5767 posts in 3433 days

#10 posted 06-20-2011 03:57 AM

The manual says not to use an extension cord. Having said that, I use mine with a 50 foot 12 gauge cord…

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View Grandpa's profile


3261 posts in 2877 days

#11 posted 06-20-2011 04:13 AM

I would want a 12 gauge cord if possible but then again most of the receptacles in the U.S. are 15 amp. It would still be better than a 14 ga. cord. Amperage is lost in the cord and length is the enemy. It would also lose amperage if you wired it in hard and had a long run. A long run is a long run. You could just avoid some of the smaller receptacles. When I was working in the design business we supported equipment that would have a 240V motor running on a 208 service. That is voltage though.

View cutmantom's profile


407 posts in 3236 days

#12 posted 06-20-2011 04:39 AM

make sure the cord is at least a 12 gauge or could you wire in a dedicated outlet for the DC, solid copper wire performs better that multistrand extension cords

View Mike Gager's profile

Mike Gager

665 posts in 3468 days

#13 posted 06-20-2011 06:40 AM

i use a 12 gauge cord on mine. i think its only 15ft long though. seems fine

View dpop24's profile


115 posts in 2770 days

#14 posted 06-20-2011 07:26 AM

IMHO actually typically means In My Humble Opinion – or at least that’s the way I understand it.

-- If it ain't broke, take it apart and find out why

View knotscott's profile


8147 posts in 3577 days

#15 posted 06-20-2011 10:58 AM

The longer cord isn’t doing the motor any favors for long term reliability….shorter and heavier would be better.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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