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240V on/off push button for disc sander

TTMotorsports

Red Skull Member
Joined
Jan 7, 2021
Member Number
3315
Messages
1,438
Loc
Lucerne Valley, CA
Ok so I recently was given a 20" Apex disc grinder. It is 240V and was hard wired into a small sub panel where he used the circuit breaker as the on/off switch. I'm using it a location where I'm gonna have it plugged into a 240V outlet in my wall so I need to wire in an on/off switch into a pedal box I'll mount into the sander with a cord out to plug in. I've seen some on Amazon but they vary so much in quality front china and I want to buy it once and have a good switch. What switch have you used and would recommend for me to use for this. Thanks.
 
Get a contractor with motor overloads. Or a square d compressor motor starter control box.
 
Well I looked into this machine deeper and I was wrong in every aspect besides it being an apex. It's actually a 16" sander disc sander and the motor is a 1hp 3 phase 1750 rpm motor. So now I'm gonna look for a replacement 120v motor so I can use this thing the 2-3x a year is need it. Thanks for the replies guys.
 
TTMotorsports said:
Well I looked into this machine deeper and I was wrong in every aspect besides it being an apex. It's actually a 16" sander disc sander and the motor is a 1hp 3 phase 1750 rpm motor. So now I'm gonna look for a replacement 120v motor so I can use this thing the 2-3x a year is need it. Thanks for the replies guys.
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A cheap 110v VFD would be cheaper and allow speed control as well as the ability to use any outlet.
www.wolfautomation.com

L510-101-H1-U

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Usually No I believe. 240, 240 out.
 
If you stay 3 phase I used this for a 2hp 3ph grinder. I added the start stop switch in the old switch that was shot.
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Firstram said:
A cheap 110v VFD would be cheaper and allow speed control as well as the ability to use any outlet.
www.wolfautomation.com

L510-101-H1-U

L510-101-H1-U quick delivery, authorized Teco Westinghouse distributor. Offers complete line of AC Drives . Easy online ordering, rewards program, and great pricing.
www.wolfautomation.com www.wolfautomation.com
Click to expand...
TTMotorsports said:
Would a 110v vfd operate the 240v 3 phase motor?
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cj3a said:
Usually No I believe. 240, 240 out.
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That one linked says 120v single phase in, 230v 3 phase out. That's the first one over 1/2hp that I've seen that will do that. I use a small Automation Direct 1/2 HP on on my little Craftsman lathe and at the time it was the biggest I could find without going up to 220v.



I accidentally bought a 110 in, 110 3 phase out VFD because I didn't read the specs. I still have no idea what the actual application for that is....but if I ever do, I have one sitting on the shelf. :laughing:
 
bgaidan said:
That one linked says 120v single phase in, 230v 3 phase out. That's the first one over 1/2hp that I've seen that will do that. I use a small Automation Direct 1/2 HP on on my little Craftsman lathe and at the time it was the biggest I could find without going up to 220v.



I accidentally bought a 110 in, 110 3 phase out VFD because I didn't read the specs. I still have no idea what the actual application for that is....but if I ever do, I have one sitting on the shelf. :laughing:
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If it sits on the shelf for too long the caps go bad. Hook it up to power at least once a year to keep it functional
 
Firstram said:
If it sits on the shelf for too long the caps go bad. Hook it up to power at least once a year to keep it functional
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Caps don't go bad, they just discharge past safe limits and need to be brought back up slowly. Just plugging it in can make them pop. I have a friend that works on industrial electrical shit for a living and can recharge the caps for me if I ever let one get to that point.
 
Well I did as everyone says not to and got a cheap 110v vfd. It's working and variable speed and fwd/rev is cool too. We shall see how long it lasts.


Wisoqu VFD Variable Frequency Drive,Single‑Phase 110VAC Input 3‑Phase 220VAC Output Variable Frequency Inverter,Motor Speed Controller,220V 1500W AT5‑1500X, default https://a.co/d/0NllqC
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Does a reverse sander put material back on? Cause that would be handy once in a while.

TTMotorsports said:
Well I did as everyone says not to and got a cheap 110v vfd. It's working and variable speed and fwd/rev is cool too.
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