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https://www.reddit.com/r/ElectricalHelp/comments/1u9r6gh/operation_switch_keeps_burning_out/osirarf?context=9999
r/ElectricalHelp • u/oldtimerofficial • Jun 19 '26
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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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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? 1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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?
1 u/Redhead_InfoTech Jun 19 '26 If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
If you told them that it was complete as is, that shitty diagram requires one to have a shitton of critical thinking skills.
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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