Need help with new grinder

W

Wuatt

Joined
Mar 26, 2021
Messages
8
Hey all!
So I finally saved up enough money to buy myself a 2x72 belt grinder. I settled on the H2S from Vashti Grinders. I'm going to be getting it with the 2hp 3 phase motor and VFD, but I only have 110v 15amp circuits to run it off of in my shop.
My question is weather I will run into any issues running off of 110v 15a. Or will I just have a little less power than if I were to run off a 220v circuit.
Thanks in advance everyone! I appreciate any and all the help I can get!
 
You didn't say what VFD you have, but you will probably only get 1.5HP from the motor. 15 amps may be too small a circuit to run the grinder and any other running equipment on ( lights, fan, etc.)
You will do yourself a favor by running 220 out to the shop. Even if it is a 10 gauge extension cord that plugs into the dryer outlet.

Where is the shop? Is it detached? How far is it from the dryer or breaker box? Does the whole shop run on one 15 amp breaker?
 
Stacy E. Apelt - Bladesmith said:
You didn't say what VFD you have, but you will probably only get 1.5HP from the motor. 15 amps may be too small a circuit to run the grinder and any other running equipment on ( lights, fan, etc.)
You will do yourself a favor by running 220 out to the shop. Even if it is a 10 gauge extension cord that plugs into the dryer outlet.

Where is the shop? Is it detached? How far is it from the dryer or breaker box? Does the whole shop run on one 15 amp breaker?
Click to expand...
Hey Stacy, thanks for the reply!
The VFD is a Kbac series - NEMA 4X/IP65.
My shop has two 15 amp circuits in it.
The shop is the far half of my garage, which is connected to the house. I wanted to run two 220v outlets as well as a 110v 20a circuit. But my breaker box is in the basement, and the electrician quoted me $1100 to put in the breakers and run the wires.
The dryer isn't too far away, so that might be an idea to try.
But in the meantime, let's say it doesn't trip my breaker, I would be pretty much running a 2hp motor at 1.5hp max?
 
Yeah, the KBAC (27d I assume?) is only going to yield 1.5hp at 110VAC. If you’re not running a long and/or light gauge cord, 15A may be enough to keep from tripping your breaker, also assuming there’s nothing else running on it. You also want to make sure it’s not on a GFCI; VFDs don’t like those.
If you are able to verify that your wire from the panel to your outlet(s) is 12AWG, you can swap your 15A breaker out for a 20A for a little more head room. I wouldn’t recommend doing that if it’s only 14AWG though.
 
Another thing that can be done in a pinch is check if the two outlets in the shop are on the same breaker. If on different breakers there is a50/50 chance they are on separate legs. If they are on separate legs, you can make up a split cord (two plugs one socket) that plugs into both outlets and provides 220VAC.

If this does not make sense, or you don't know how to do this, get a buddy who is electrically inclined to test things and make the split cord up.
 
If your garage is above or shares a wall with the basement running some romex up the wall and adding a 220v receptacle and 40-50 amp breaker wouldn't cost too much over $100 or so and it is wonderful to have 220 in a shop. I don't know how electrically inclined you are but with the help of a friend who is, or an hour of youtube you could probably figure it all out, again depending on the walls you have to run up through and the like. You could also tie into the dryer wiring and run the wire out to a new garage receptacle if that's closer or easier, then as long as you don't run both at the same time you may be fine. If you own this house or plan to be there a long time it may be worth looking into
 
Skiller1nc said:
If your garage is above or shares a wall with the basement running some romex up the wall and adding a 220v receptacle and 40-50 amp breaker wouldn't cost too much over $100 or so and it is wonderful to have 220 in a shop. I don't know how electrically inclined you are but with the help of a friend who is, or an hour of youtube you could probably figure it all out, again depending on the walls you have to run up through and the like. You could also tie into the dryer wiring and run the wire out to a new garage receptacle if that's closer or easier, then as long as you don't run both at the same time you may be fine. If you own this house or plan to be there a long time it may be worth looking into
Click to expand...
Yeah, it really isn't a hard job to run the wires where I need them, and I've done a decent bit of wiring work in the past. But the issue I've run into is the home I'm in now is a log home. I tried to get a permit today to do the wiring myself, but they said because it's a log home I needed to get a ticketed electrician to do it, otherwise my fire insurance on the house would be void. So it looks like I might be parting with another $1500 to wire a sub panel into the workshop
 
I have been running my 2 HP grinder with the kbac 27d off 110 for the past 2 years (Northridge) without any issues at all. Imagine a lot of people out there are also lacking 220 in their garages. I would try it out before spending the money. I just built a new shop with four 220 circuits but still running it off the 110. (For now)... like mentioned earlier don’t use the vfd with gfci outlets.
 
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