Why, then as OP states, does the neon illuminate when the switch is off?
neon lit switch for loft lights.
- Thread starter luke photography
- Start date
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Not a good idea, someone, unaware there is someone in the loft, may switch the landing light OFF putting the loft in darkness,
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That depends what you mean by 'across' the switch.
How is there current through the neon when only one side is connected?
We're surely talking about the situation in which both sides of the neon are connected - one to each side of the switch? If so, then when the switch is open, then (provided there is a load connected to the circuit) current will flow through the neon and load (far too little current to be 'noticed' by most loads). However, when the switch is closed, the neon will be 'shorted out', hence no current through it.
Kind Regards, John
The conductance of the lamp lamp allows the Neutral to reach the Switched Live,
Ok. Can we assume that the OP has moved the neon connections, when he wrote this?
"So I thought I might be use just the single side of an immersion heater switch with neon indicator.. but whilst the switch works fine, the neon lamp lights when the switch is off rather than when its on. can I flip connections or add some bridging wires to fix this and if so where ??"
"So I thought I might be use just the single side of an immersion heater switch with neon indicator.. but whilst the switch works fine, the neon lamp lights when the switch is off rather than when its on. can I flip connections or add some bridging wires to fix this and if so where ??"
Well, it's obviously impossible that the neon could have lit with only one side of it connected to anything. I therefore assumed that when the OP wrote "the single side of an immersion heater switch" he was referring to (both 'in' and 'out' of) one pole of a double-pole switch.
The 'obvious' (indeed, probably only) explanation for the neon lighting when the switch is off is surely what bernard and myself has suggested, isn't it?
Kind Regards, John
I suppose it must be that.
It just seems odd not to mention it.
It just seems odd not to mention it.
Maybe, but (assuming I'm right) all he "didn't mention" was that the 'one side' was 'one side (pole) of a DP switch', and he may well have felt that that didn't need saying.
Kind Regards, John
...but he did say that -
"So I thought I might be use just the single side of an immersion heater switch with neon indicator.. but whilst the switch works fine, the neon lamp lights when the switch is off rather than when its on. can I flip connections or add some bridging wires to fix this and if so where ??"
"So I thought I might be use just the single side of an immersion heater switch with neon indicator.. but whilst the switch works fine, the neon lamp lights when the switch is off rather than when its on. can I flip connections or add some bridging wires to fix this and if so where ??"
He did, but, as I said, if one reads that to mean "So I thought I might be use just
Kind Regards, John
Well, I suppose that is what is meant - except not possible, but
an "immersion heater switch with neon" is "a thing".
an "immersion heater switch with neon" is "a thing".
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