I have a lathe I need to wire up. Looking for a switch that has "forward", "reverse", and will reset itself if the power gets shut off. I have no idea what kind of switch this is or called and as a result, can't locate one via google search. This will run on 115v and have a max draw of 6.2amps (small lathe). I have an on switch that will precede this switch (safety switch). Can anyone help point me in the right direction? Thanks!
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Need help selecting/finding a machine switch
- Thread starter guy2600
- Start date
RTM
Well-known member
You need a magnetic contactor to drop out when you lose power. No idea on your reversing bits.
Dave455
Well-known member
The switch that shuts off is called a “No Volt Release” switch.
Typically, these are used with a separate reversing switch.
Typically, these are used with a separate reversing switch.
seber
Well-known member
As RTM said, you need a magnetic contactor. The reversing switch is a separate component. There may be a specialty unit that does both, but I bet you wouldn't like to pay for it.
TurnipTruck
Well-known member
Look for a drum switch.
RTM
Well-known member
Usually a momentary start and stop switch, then your fwd rev downstream (Tho maybe upstream makes more sense, don't have any lathes around here I can look at)Ok, in layman terms, if I were to use a magnetic contactor component, what type of switch would I then hook it up to? Would it be a momentary switch? .
Last edited:
timgunn1962
Well-known member
The No-Volt-Release contactor has a momentary pushbutton to start and a momentary pushbutton to stop. Downstream of that, you'd have the fwd/rev drum switch.
Normal operation would be to select either forward or reverse on the drum switch, then start with the start button. You'd need to stop with the stop button before selecting the other direction.
Using a drum switch with extra contacts would allow the drum switch to be wired into the stop circuit for the contactor, stopping the motor rather than trying to instant-reverse it, should the switch be moved without pressing the stop button first.
Normal operation would be to select either forward or reverse on the drum switch, then start with the start button. You'd need to stop with the stop button before selecting the other direction.
Using a drum switch with extra contacts would allow the drum switch to be wired into the stop circuit for the contactor, stopping the motor rather than trying to instant-reverse it, should the switch be moved without pressing the stop button first.