Timelock with Photocell then Contactor with a Keyswitch

[Liam howe]

I have got a little job to do tomorrow and need some assisstance.
I need to install a contactor for some outside lighting.

Can anyone draw me up or explain as best as they can how to wire the following, I have a rough idea its just the last time i wired a contactor etc was many years ago

A timeclock will be used with a photocell and then the Contactor along with a keyswitch too as the lights are emergency.

Any help will be appriciated thanks

 

[Hellmooth]

Why are you having to put a contactor is now, how did it work before?

You need to power the coil of the contactor with whatever does the switching, A1 would be your switch wire and A2 your neutral, you would then need to power your lights through the contactor relay. That is a simplified version of what needs to be done, would need more info to elaborate.

 

[Liam howe]

These lights are a new install, the original contractor cannot complete the job.

How would i encorporate a keyswitch into this?

 

[Dan]

I've changed the thread title to something more suitable.

 

[westward10]

What is the key switch for, override?

 

[Octopus]

How many lights are you trying to control? what's the total wattage?

 

[Liam howe]

Theres a total of 9 lights.
Not sure on the wattage.
The keyswitch is to kill the power to see the emergencies are working.

 

[westward10]

I am sure when RB sees this you will have a diagram.

 

[Leesparkykent]

I tried knocking one up but looked rubbish

 

[Flanders]

So it sounds like you will have a permanent live and a switch live to each light if they are a maintained emergecy light so you will nead a 3 core and earth to the lights send the switched live through the contactor and the permanent live through your test switch you will then supply tbe contactor coil via the time clock and tbe photo cell.

 

[The Ghost]

If you are buying a contactor, you will get a wiring diagram with it. However there are two things, switched supply to the coil and when the coil activates the terminals closed by the coil are for the lights. We have a similar setup supplying seventeen lights. I did not put a key switch in as you can just switch of the timed supply with a spur supplying it all. And that gear is locked in a cupboard so no one can interfere without a tool or key. There is a seasonal time clock set for 52 degrees north so no need for a photocell in this case. Maybe the keyswitch is a bit overkill unless the public can get at it, but if they can then they can mess with the time switch.

 

[westward10]

Emergency lighting should not have a switched fuse connection unit which can interfere with the permanent supply. An identified test facility ia required.

 

[Richard Burns]

I am sure when RB sees this you will have a diagram.

If you insist!

I tried knocking one up but looked rubbish

Hmm I am of similar sentiment with mine!

This shows the timer and photocell in series so the lights are only on when the timer is on and it is dark, wire in parallel if you want the lights on when the timer is on and/or when it is dark.

View attachment 35445

 

[jameskiernan18]

If you insist!

Hmm I am of similar sentiment with mine!

This shows the timer and photocell in series so the lights are only on when the timer is on and it is dark, wire in parallel if you want the lights on when the timer is on and/or when it is dark.

View attachment 35445

Hi mate - I hope its not too cheeky - but im just trying to educate myself on this to. I cant open the attachment. Is there any chance you can repost it? Thanks in advance

 

[cliffed]

Is this a wind up

 

[davesparks]

If you are buying a contactor, you will get a wiring diagram with it. However there are two things, switched supply to the coil and when the coil activates the terminals closed by the coil are for the lights. We have a similar setup supplying seventeen lights. I did not put a key switch in as you can just switch of the timed supply with a spur supplying it all. And that gear is locked in a cupboard so no one can interfere without a tool or key. There is a seasonal time clock set for 52 degrees north so no need for a photocell in this case. Maybe the keyswitch is a bit overkill unless the public can get at it, but if they can then they can mess with the time switch.

You are aware the keyswitch is for em testing arent you, I hardly think you can call that overkill when it is a requirement of the British standard

 

[Richard Burns]

Hi mate - I hope its not too cheeky - but I'm just trying to educate myself on this to. I cant open the attachment. Is there any chance you can repost it? Thanks in advance

Similar diagram with series and parallel, some attachments have got lost in the move and may reappear later.

 

[jameskiernan18]

Similar diagram with series and parallel, some attachments have got lost in the move and may reappear later.
View attachment 36249

Thank you very much Richard. Thats exactly what I was after. I really appreciate that.