Does a 20amp emergency stop button exist?

[j_arney]

I’ve been asked to provide an emergency stop button for a circuit rated at 20amps. I’ve never installed one before and only really found 10amp buttons at my local wholesaler. I can put a contactor in, no problem but was just interested to see if you can get them?

 

[James]

Yes you can get an emergency stop button that is rated at 20A,
however by fitting it you run the risk of being in court for corporate manslaughter or a number of other nasty legal challenges to your freedom.

in my opinion, after re reading what i have posted, i think the advice is sound.
you are of course free to take it on board and use it or ignore it.

 

[mainline]

Yes you can get an emergency stop button that is rated at 20A,
however by fitting it you run the risk of being in court for corporate manslaughter or a number of other nasty legal challenges to your freedom.

in my opinion, after re reading what i have posted, i think the advice is sound.
you are of course free to take it on board and use it or ignore it.

You are being ridiculous, you have no idea what he's switching it, maybe a spa pump for instance.

He simply asked if they did a 20 amp stop switch, and you accused me of missing the point, when in fact it was you who missed the actual question.

 

[James]

You are being ridiculous, you have no idea what he's switching it, maybe a spa pump for instance.

He simply asked if they did a 20 amp stop switch, and you accused me of missing the point, when in fact it was you who missed the actual question.

Fair point, however I have never seen a training environment where the "training is wire up this spar pump"

like I said, if the risk assessment deems it suitable then go ahead but i think it is a vital step that both you and the op are missing.
OP, has anybody done a risk assessment and if so, what stop category are you trying to design. also, is a single point of failure likely to bring a risk of significant harm to anybody?

I am done with this for tonight and my final thoughts are Simpley that on the face of it neither @mainline or @j_arney have the information and knowledge required to design a suitable safety system for this project.

 

[mainline]

Fair point, however I have never seen a training environment where the "training is wire up this spar pump"

like I said, if the risk assessment deems it suitable then go ahead but i think it is a vital step that both you and the op are missing.
OP, has anybody done a risk assessment and if so, what stop category are you trying to design. also, is a single point of failure likely to bring a risk of significant harm to anybody?

I am done with this for tonight and my final thoughts are Simpley that on the face of it neither @mainline or @j_arney have the information and knowledge required to design a suitable safety system for this project.

You have no idea what the project is ... and you deem it that neither me or the op have the knowledge required ???

Are you for real or is it that you can't stand the fact that you were wrong.

I also take umbrage at you saying I lack the knowledge when you have no idea what my background is.

 

[westward10]

You have no idea what the project is ... and you deem it that neither me or the op have the knowledge required ???

Are you for real or is it that you can't stand the fact that you were wrong.

I also take umbrage at you saying I lack the knowledge when you have no idea what my background is.

As opposed to arguing the right and wrongs, what is your background.

 

[mainline]

As opposed to arguing the right and wrongs, what is your background.

I worked in electronics and programming for over 40 yrs before semi retirement and now work to suit mostly repairing various radio test equipment from all over the world, for 3 days a week i look after 21 cottages on a holiday complex mostly electrical.

Things like this but now more as a hobby

 

[James]

I worked in electronics and programming for over 40 yrs before semi retirement and now work to suit mostly repairing various radio test equipment from all over the world, for 3 days a week i look after 21 cottages on a holiday complex mostly electrical.

Things like this but now more as a hobby

Love the workshop.
I still stand by everything I have said though.
if you don’t have the info you can’t make the call for correct advice.

 

[Spoon]

You have no idea what the project is

That is correct mate. All we know is it's a place where someone has decided they want a way to isolate the power for trainees.
Why do they want this? What are the dangers that they have requested this? What level of injury could happen?
The project may just need a key switch that can isolate the power, or it may need a push button that is monitored and wired to a safety device. Only a risk assessment will answer this.

 

[Darkwood]

You are being ridiculous, you have no idea what he's switching it, maybe a spa pump for instance.

He simply asked if they did a 20 amp stop switch, and you accused me of missing the point, when in fact it was you who missed the actual question.

With all respect to the conversation, your premise of ridiculous is not founded by any of the posts, we simply do not have the info to make such accusations, if this is for course work then we don't permit direct answers only nudging but is this is real then we indeed need to question the context of his circumstances because this falls in a category that information is crucial to responses.

 

[telectrix]

a point that has been missed so far, unless i've missed it, is that a stop button is wired into the control circuit, so no way will it ever see a 20A load current.

 

[Spoon]

a point that has been missed so far, unless i've missed it, is that a stop button is wired into the control circuit, so no way will it ever see a 20A load current.

I think the OP's intensions were to use the stop button as an isolator and wire directly into the power circuit.

 

[Intoelectrics]

a point that has been missed so far, unless i've missed it, is that a stop button is wired into the control circuit, so no way will it ever see a 20A load current.

This is why the op was asked what the stop button was for and advised that its not as simple as just wiring in a "stop button". would have been just easier to search on google for the 20amp switch, than ask on this forum, if there is no intent on taking advice or explaining what the job is.

 

[mainline]

This is why the op was asked what the stop button was for and advised that its not as simple as just wiring in a "stop button". would have been just easier to search on google for the 20amp switch, than ask on this forum, if there is no intent on taking advice or explaining what the job is.

That's what the op did, he said he basically just wanted to know if a 20 amp stop switch existed, as he couldn't find one.

I get the questions being asked concerning a risk assessment, but the op a number of times said that he just wanted to know if one existed and wasn't interested in anything else.

I'm sure if he is learning in a training environment, then the trainer will put him right.

If the op returns, then maybe he can explain the scenario.

 

[Intoelectrics]

That's what the op did, he said he basically just wanted to know if a 20 amp stop switch existed, as he couldn't find one.

I get the questions being asked concerning a risk assessment, but the op a number of times said that he just wanted to know if one existed and wasn't interested in anything else.

I'm sure if he is learning in a training environment, then the trainer will put him right.

If the op returns, then maybe he can explain the scenario.

Yeah, but is an unusual request so quite rightly raised interest in what it was required for.

 

[Electro-tech]

I would use an electrical contractor, not a contactor. leave the liability to someone who knows.