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Hello,
I wanted to get an electrician to replace 3 x pneumatic time lag switches with electronic types.

Currently there are 2 lights and 3 switches...If you press more than one pneumatic switch the light stays on until the last switch runs out.

I wanted to buy the switches for the electrician and I am not sure whether I need to buy master / slaves ( 1 master 2 slaves) or a regular 2 wires all the same for all 3...

I was looking at this
TLSW 10 ILM - DANLERS Lighting Controls & HVAC Controls - https://www.danlers.co.uk/time-lag-switches/67-products/time-lag-switches/plated-time-lag-switches-2-wire-versions/107-tlsw-10-ilm

Also seen these
Illuminated Touch Timer - Timers and switches (Elkay switches and controls) | ABB - https://new.abb.com/low-voltage/products/lighting-emergency-lighting/lighting/elkay/timers-switches/illuminated-touch-timer but in the wiring instruction here can't see multiple 2 wires ... only shows slave / master.

I know my questions are probably stupid and i am doing the job myself - just wonder what to buy...

Also if any electrician in London Paddington is interested - let me know.
 
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Taylortwocities

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Arms
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Let your electrician buy the correct materials.
Some of the electronic time switches require one master and several slaves. They are not necessarily a direct swop for the old pneumatic type. It will depend on how the wiring is laid out.
 

Charlie_

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Arms
You are ‘buying them for the electrician’ but then you say you are doing the job yourself?
You then proceed to ask if there is an electrician in Paddington that may be interested?
What is it?
Just phone an electrician, tell him how many time lag switches you need replacing and he will turn up with them and install them.. job done, you don’t need to risk your health and others trying to carry out the work of professionals
 
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  • #4
You are ‘buying them for the electrician’ but then you say you are doing the job yourself?
You then proceed to ask if there is an electrician in Paddington that may be interested?
What is it?
Just phone an electrician, tell him how many time lag switches you need replacing and he will turn up with them and install them.. job done, you don’t need to risk your health and others trying to carry out the work of professionals
Sorry - typo ... I AM NOT doing the job myself...
 

freddo

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Arms
Supporter
Esteemed
Pneumatic light switches work with just about anything. Electronic replacements require much more thought, and careful selection will be required, especially if low energy lighting is installed.
 

Charlie_

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Arms
The pneaumatic type are more reliable and also more robust to those people with heavy hands..
Another option would be to change them for retroactive switches wth a central lighting timer..
And another option; blank off existing switches and change the light fittings for sensor type
 
T

The Ghost

If you do go sensor switches be sure to get no neutral ones. Danlers work fine for what you describe. As to how many masters/slaves it depends on you switching arrangements. For instance a three way switch wants one master and two slaves and the three way wiring will need modification. For simple one way switches then a master for each one. Danlers are quite good for support if you have questions as well.
 
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  • #9
Thank you all for the feedback. Just trying to find a local electrician.
 

Taylortwocities

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Arms
Esteemed
Thank you all for the feedback. Just trying to find a local electrician.
Home - http://www.electricalcompetentperson.co.uk/
 
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