I have a 240 volt 30 amp circuit into my garage that my Dayton heater is hard wired to. I would like to upgrade my 120 volt welder to a 240 volt unit. Can I place a switch between the receptacle that the welder would plug into and the heater so it would not be possible to accidentally run both at the same time? Thank you for any assistance.
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Two tools on 240 circuit with switch
- Thread starter jragain
- Start date
theoldwizard1
Well-known member
You need a double pole, double throw switch like a Hubbell 1388 or a Leviton 1288. These are heavy duty "industrial" switches rate at up to 277V and 30A. Not cheap. Over $100.
The fact that you said "between" the welder receptacle and the heater tells me you probably don't really understand how to wire it. Hire an electrician.
The fact that you said "between" the welder receptacle and the heater tells me you probably don't really understand how to wire it. Hire an electrician.
i didn't know they made switches like that. thanks old wiz.
i have to run my drier and welder off the same plug. with that switch and 3 boxes and i have both plugged in and just flip the switch to choose which one is on or both off.
i have to run my drier and welder off the same plug. with that switch and 3 boxes and i have both plugged in and just flip the switch to choose which one is on or both off.
Aceman
Well-known member
You need a double pole, double throw switch like a Hubbell 1388 or a Leviton 1288. These are heavy duty "industrial" switches rate at up to 277V and 30A. Not cheap. Over $100.
The fact that you said "between" the welder receptacle and the heater tells me you probably don't really understand how to wire it. Hire an electrician.
An electrician is probably going to tell him it's not worth the time to screw around with a switch. It'd be better to run another circuit or install a recep where the heater is hardwired. Cord and plug the heater, so all you have to do is unplug the heater and plug the welder in.
theoldwizard1
Well-known member
Cord and plug the heater, so all you have to do is unplug the heater and plug the welder in.
Ding, ding, ding ! We have a winner !
theoldwizard1
Well-known member
That is the highest capacity switch that will fit in a "standard" electrical box.i didn't know they made switches like that. thanks old wiz.
After that, you will want what is called "double throw safety switch". These handle from 30-200 or more amps and come in their own box. You can buy a weatherproof one if needed.
May Pop
Well-known member
Why not interuput the feed to the heater. Install a J box there send wires down to a receptacle for the welder and wires over to the heater. Only use one item at a time.
Why not interuput the feed to the heater. Install a J box there send wires down to a receptacle for the welder and wires over to the heater. Only use one item at a time.
cant do that. if something is fixed in place and draws more than 50% of the circuit ampacity then it has to be on a dedicated circuit.
theoldwizard1
Well-known member
You'll need 10/3 or 10/4 cord (on electrical cord they count all wires), depending if you need a neutral (look at what is there now). I'm partial to twist lock plugs and receptacles.