Volt Free Switching

[mstoker1990]

Can someone offer me some guidance.

I am wanting to keep the switching pair on two zone valves aswell as the switching pairs in a time clock volt free. Mainly so that 230V isnt flying around different wiring centres.

Is there a way I can have volt free switching to pull a relay of some sort in? to then send 230V to a pump??

Any Guidance would be great

Cheers
Mark.

 

[tazz]

You will have to switch some level of voltage, to operate relays.....either 5v/12v to operate a relay or relays, with the final contacts switching 230v

 

[pennychew]

You will have to switch some level of voltage, to operate relays.....either 5v/12v to operate a relay or relays, with the final contacts switching 230v

Ive never used one but what about an opto isolator activated by photocell?

 

[D Skelton]

Can someone offer me some guidance.

I am wanting to keep the switching pair on two zone valves aswell as the switching pairs in a time clock volt free. Mainly so that 230V isnt flying around different wiring centres.

Is there a way I can have volt free switching to pull a relay of some sort in? to then send 230V to a pump??

Any Guidance would be great

Cheers
Mark.

They already are volt free???

 

[davesparks]

What are you trying to achieve here?

You can get timeswitches with volt free contacts if you shop around a bit.

Plus the micro switch of the valve is effectively volt-free, bit I don't know if it would be suitably segregated to be used for SELV switching, the cables all get mashed together somewhat in those valves

 

[Richard Burns]

Ive never used one but what about an opto isolator activated by photocell?

I think you will find an optoisolator is a device for electrically separating electronic circuits by using a light coupling inside the device not for external operations.

 

[tazz]

Ive never used one but what about an opto isolator activated by photocell?

As a relay, would need a voltage to operate the led in the opto isolator.........the only contacts which will be volt free are the starting contacts (ie a time clock) and the final relay contacts.....but any relay in between will need power.