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I was working at a location recently where someone had fallen foul of the TP (without N) circuit, with 2A of 230V control load that had to be fed from the same circuit. At least he didn't use a gas pipe to send the current on its way to neutral, as I have seen (and isolated!) elsewhere. A 0-230-400 transformer would have been better than the pyro sheath earth, though.
 
I am just jogging your memory
Curious as to why? The coil could be any voltage in which case my explanation about 400V being more universally available than 230V applies not to the coil but to the transformer, as I mentioned. Or perhaps I'm missing your point.
 
I was referring to coil voltage. but as I said it would most likely be a case where external controls are needed.
I agree on most stand alone starters they are generally 400v or 230v .
I wasn't in any way trying to imply anything different.
 
Ah, I see what's unclear, I should have written - 'if the control is ELV'. Good point.
 

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