Has anyone used 2 DC's on one line? - Page 2 - Router Forums
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post #11 of 13 (permalink) Old 04-21-2019, 10:59 PM
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Originally Posted by Marco View Post
Recently had 3 20 amp circuit breakers added for the shop and a new Panel Box.
I have the same electrical setup. My wife ordered a 60 amp sub panel installed to my shed. It actually feeds both my shop shed and my office shed, since I'm only in one at a time.

I have two Harbor Freight 2hp units, one in my garage, the other outside the shop as shown. I doubt seriously if they are actually 2hp. A 15 amp, 110v circuit can only produce 1.75 hp at best. I color coded my circuits so I can avoid overloading them. One for DC and LED lights, second for heater/AC, third for whatever tool is in operation. The HF units go on sale occasionally with an additional discount coupon. Both HF units cost me $162 each. The Wynn filter cost more than the DC unit, but hoses, connectors, fiber drum from ULine, cost that again. Both units have a 27 foot flex hose that goes only to one tool at a time. Works great.

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post #12 of 13 (permalink) Old 04-22-2019, 07:45 AM
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Originally Posted by Marco View Post
I imagine the CFM from the 2hp DC will be enough from basically one tool at a time with a short run of flex. I want to use the 1hp if it makes sense. Hate to see it not being used... even thought about making a monster overhead air filtration unit out of it. If I use it I'll probably follow Sticks suggestion of making 2 separate units.

The 2hp DC I originally bought and had to return a few years back as the wiring/Panel Box for the shop couldn't handle the 20 amps. That's how I ended up with the 1 hp DC. Recently had 3 20 amp circuit breakers added for the shop and a new Panel Box.
It could be used to clear up shop air if itís final filtration is fine enough. Or it could be used as a portable unit to hook up to tools with no fixed location. At 1 hp it should be a 110 volt unit drawing only around 8 amps.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #13 of 13 (permalink) Old 04-22-2019, 09:08 AM
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Two DC's starting at the same time pull a LOT of amps. Sounds like a case of using a master/slave switch so that a few seconds after the first ones comes on it powers the second one.
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