What switch is it?

wesley · 2 Nov 2021 at 13:47

Hi

One of the 3 switches for emergency light in case of power cut in the stairwell is not working anymore

It's a timer push button, each light have a battery which charge up from the main.

I've found many timer push buttons but not with the transformer for battery (I think,)

I can't find one anywhere online.

Thanks

Scrutinize · 2 Nov 2021 at 13:49

@wesley modern version https://www.screwfix.com/p/elkay-40...aDWe9S990awktwwKN8kaAg3iEALw_wcB&gclsrc=aw.ds

wesley · 2 Nov 2021 at 13:52

Thanks for the quick reply. Don't think it's a right one, it doesn't have a transformer

bremen1874 · 2 Nov 2021 at 13:59

Where is the transformer in your pictures? There's a relay, but that could be replaced by solid-state electronics in a different design.

Scrutinize · 2 Nov 2021 at 14:02

@wesley Sorry, was still typing as hit send, your pic shows the switching relay iirrc the charging / battery backup element of the circuit is dealt with separately.

wesley · 3 Nov 2021 at 15:08

Thanks

Is it 2 or 3 way switch i need?

Thanks again