Switch Size For Motor

_{....I want to wire it for remote operation...}

Maybe i am a little thick, but wouldn't you want to use a proper electromagnetic starter (the appropriate NEMA size) ?

A manual switch will also do if it is at the remote point that you mean (provided it is motor duty rated)

Save yourself some trouble ron, and get one of these. They work just fine. Available at the big hardware stores, or online. Plug in remote control.

First we should ask, is there anything else on that circuit? Is it hard wired, or does it have a "normal" 115V three prong plug? How long is the wire run?

Do you have an AMP probe? Do you know what the normal operating current draw of this motor is?

Yeah, that's true. He probably wasn't talking about remote control.

I used one of the units like the one above for a water pump I was using outside. It worked as advertised. I think it was good up to about 100'.

you could go with something like this

http://www.grainger.com/Grainger/SQUARE-D-Manual-Switch-1H400?Pid=search

or

http://www.grainger.com/Grainger/HUBBELL-WIRING-DEVICEKELLEMS-Wall-Switch-2EAU5?Pid=search

Read the post folks, he said 2HP at 115V. That is way too big for the manual devices and radio switch posted.

You must buy a switching device that specifically says it is rated for 2HP at 115V, you cannot just go by amps. Switching an inductive load, like a motor, is much more difficult than switching something like a light bulb. That is why you see that 20A rated switch is only rated for 3/4HP. You will need something equivalent to a 50 or 60A switch for that motor.

Most likely you will want to buy a magnetic starter, one with an overload relay, for that motor. 115V motors often have built in thermal dugouts, but sometimes not that big because that's a big switch to stuff inside the motor housing. You need to read your manual thoroughly and understand what it is saying about your motor. Better yet, hire a qualified electrician, this big of a motor should be looked at by a pro.

I would use the square D 2 pole device & wire the 2 poles in parallel

ron would have to define how remote he want's it to be

By remote, I mean within a 10 foot radius. The DC will be located in an inaccessible location.

MY bad on the switch issue, I failed to look at those links. They do say those are rated for 2HP.

But actually I find that hard to swallow, 2HP at 115V is a lot more current than 2HP at 240V (which is going to be 16-18A FLC), and the Grainger pages say they are rated the same for both voltages. I wonder if that's a typo in those catalogs. Looking directly at a Hubbell catalog, they show their 30A switch rated at 2HP, but the 20A 4 way switch shown by Grainger shows NO HP RATING AT ALL in the Hubbell Catalog. I think someone at Grainger is making some cut-and-paste errors. Grainger catalogs are therefore not a good engineering tool.

it also depends on what the duty cycle is

I would work real hard to to get a 2hp blower outside the workshop so I didn't have to hear it

4-5 inch pvc to get the vacuum where I needed it with minimal loss, make up some slidegates, so I could get full effect to what ever equipment I was working at

the grainger online catalogue is as flakey as ever, I knew there were manual motor starters that big...

I just posted the first picture that came up.

There are others that would do the job.

I pulled out the manual for the DC and there is no indication of a magnetic contactor; just a paddle switch. I know what magnetic starters look like; I have one on my 3hp cabinet saw. It has the normal 3 prong cord and the circuit it is on is a 20amp circuit. I wanted to use a remote, but the ones I found are rated for 1-1/2hp. I'm thinking a toggle switch wired in parallel with the existing switch. Another thought is to use a low voltage contactor, but I want to keep the cost down, way down. I'm guessing an ordinary light switch can't handle the inductive load at startup. The Hubbel device looks like it would work. The rocker switch on the DC looks like a very inexpensive switch that simply carries all the starting current without any contactors.You can download the manual here: http://www.harborfreight.com/2-hp-industrial-5-micron-dust-collector-97869.html