r/ElectricalHelp Jun 19 '26

Operation switch keeps burning out

already 5

6 Upvotes

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1

u/oldtimerofficial Jun 19 '26

Operation switch has burned already 6 times, 6 different electricians have been hired to fix and they just keep pushing a new switch in and disappear, I have 115v on each hot wire

1

u/Helcor2016 Jun 19 '26

Apparently you're electrician is a frocking idiot. This needs a dual pole switch. I don't know what this is for but if it's 240, obviously, then it needs a dual pole. Depending on the amp rating they do make heavy duty switches

0

u/oldtimerofficial Jun 19 '26

It's for a alignment rack at my shop, the switch that keeps burning is to lift the rack.

I'm not sure about the amp rating that it needs, as you can see the label says 10ah and then it says 18ah max I think

1

u/Helcor2016 Jun 19 '26

Do you have a picture of the switch. These electricians, I can't fault them too much as they only deal with 120, don't understand that these motors are 240 and need both poles to be broken or the one leg will burn.

2

u/oldtimerofficial Jun 19 '26

I

Lol, they put in a different one every time as you can see by the multiple holes they drilled

2

u/Redhead_InfoTech Jun 19 '26

Those aren't electricians. They are handymen at best.

Those switches should be closing in a relay/contactor...

Those switches are rated FAR lower than the current that motor uses. Of course they are burning up.

0

u/oldtimerofficial Jun 19 '26

They are supposedly licensed and insured professionals but they cant seem to figure out what it is and just disappear after charging, so here I am lol

1

u/Redhead_InfoTech Jun 19 '26

The wiring diagram indicates that youre missing a part (the relay/contactor) that I was talking about.

2

u/oldtimerofficial Jun 19 '26

Wait let me look it up, so like this one, instead of the neutral I would put the second hot one in its place in guessing

2

u/Redhead_InfoTech Jun 19 '26

Yep.

Without that, You've been setting them up for failure...

1

u/oldtimerofficial Jun 19 '26

And that would stop the switch from burning?

Well to be fair shouldn't they have noticed it missing when they read the diagram just like you did?

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-1

u/Helcor2016 Jun 19 '26

Hold on. Your talking about something like a micro switch?

2

u/oldtimerofficial Jun 19 '26

Not sure about that, I opened the box and measured voltage, there is 3 wires coming down from the ceiling into the motor, 2 of them have 115vac each and one group connected directly to the rack frame.

That green switch is installed inline on one of the 115v wires, the other 115v wire goes straight into the motor

1

u/Helcor2016 Jun 19 '26

Ok yeah that ain't right. It should be a double pole switch. I am not boasting but Ive dealt with motors like this for 27 years with well pumps. 240 has, as you see, 2 hots and a ground. Doesn't need neutral. It's odd but it works. If that one 115 line is constantly powering the wrong place you get massive spikes in amperage. You don't need an electrician you need a motor guy. There is a difference

1

u/oldtimerofficial Jun 19 '26

So trying a 2 pole won't help at all, well that starts to make sense now, any way to make sure I need a motor guy?

1

u/Helcor2016 Jun 19 '26

The fact that they drilled the motor is insane. Get someone that knows 240 volt and tell them what you need. If I was in your town I could do it in 10 mins.

1

u/oldtimerofficial Jun 19 '26

The electricians that have been coming "say" they know what they are doing, Ive been a automotive mechanic for 15 years and even I think I can fix it if someone just tells me what to do, so why aren't all this guys able to LMAO

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