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Old 04-15-2017, 06:07 AM   #1
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How do I wire a 110 v Light from 220 for Hot Water Heater


I have a 10-2 wire running from my 200 amp service panel to my hot water location in my shed. I would like to wire an "on indicator light" inline so when the breaker is on the light is on as i dont need the hot water heater on all the time and want to turn the breaker off when i am not in there for a couple weeks.

i am assuming that i can use one of the hot lines, but am wondering if i can grab a neutral from a nearby outlet or light junction box?

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Old 04-15-2017, 07:13 AM   #2
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


You can not use a neutral from another circuit.
Use a 240 volt bulb. Or use a contactor relay with the coil operated by the WH power and a bulb operated through the contacts from the other circuit.

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Old 04-15-2017, 07:33 AM   #3
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


I'd use a 240V indicator light as opposed to a light bulb.

I am wondering why you even need a light. Just look at the breaker.
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Old 04-15-2017, 07:55 AM   #4
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


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Originally Posted by Speedy Petey View Post
I'd use a 240V indicator light as opposed to a light bulb.

I am wondering why you even need a light. Just look at the breaker.
I need a "reminder" that it is on before i leave the building.. or the wife is NOT happy when the electric bill comes in

Perhaps a note on the door reminding me will suffice
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Old 04-15-2017, 09:32 AM   #5
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


When I owned a mountain cabin, it was a established routine to turn off the breakers for the WH and the well pump on the way out the door.
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Old 04-15-2017, 09:34 AM   #6
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


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Originally Posted by Speedy Petey View Post
I'd use a 240V indicator light as opposed to a light bulb.
When you say this, I assume that you mean a "Neon Indicator".
If so, can you point HandyDave towards a 220/240 V "indicator light" of the type which you envisage which is suitable for mounting in a North American standard wall plate or another appropriate approved fitting.

I ask this because I have found on line only 120V devices suitable for such mounting in that area (e. g. https://www.amazon.com/22mm-Indicato.../dp/B00ISAQAQW)

Yes, it is a LED. Are there any similarly dimensioned 220/240 V LEDs or Neons available?

Last edited by FrodoOne; 04-15-2017 at 09:57 AM.
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Old 04-15-2017, 11:36 AM   #7
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


how is this one as an example ?
https://www.amazon.com/Power-Indicat.../dp/B00DUW2NSC
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Old 04-15-2017, 06:20 PM   #8
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


I agree that's summer home 101, on the way out hit the breakers, no light needed.
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Old 04-15-2017, 07:38 PM   #9
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


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This is perfect!!! two 110 wires into it! Perfect!! THANKS everyone
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Old 04-15-2017, 09:03 PM   #10
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Re: How do I wire a 110 v Light from 220 for Hot Water Heater


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I need a "reminder" that it is on before i leave the building, or the wife is NOT happy when the electric bill comes in
.

Ditto - the easiest way would be to use a 240v light.
That way your not messing around with other wiring.

Or if you like you can use 2 x 120v lights in series.
put one inside the shed near the heater.
the other can be put in a more obvious position
such as outside under the eaves.

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