Staircase Lighting Timer

[sparkydude]

Hi All, just after a bit of advice with regards to using the following staircase timer from theben.

ELPA 7

Just need to confirm that i can wire it with two cores in parallel with no indicator lamps fitted.

It is to be used in a hospital corridor to override the timeclock when its dark inside and the photocell is holding off as the light cell outside says its still bright.

Basically just need to push retractuve switch , switch operates staircase timer set to 20 minutes then after 20 mins , goes off.

Could someone have a butchers at the diagrams as they seem to say 3 or 4 wire operation , but does not show my particular set up.

ANy help appreciated

Nick

 

[RogertheBodger]

Hi Sparkydude

Can't magnify your picture enough to see the connections, should imagine it needs L-N to it, if the other two are the switch connections then yes it would be OK to parallel the time switch connections to overide.

 

[sparkydude]

try this PDF with diagrams

http://www.theben.de/en/ilcatalogue...REY=/Bedienungsanleitung_ELPA7_0070002_en.PDF

looks like the 4 wire method wil work but without a few bits LoL


Nick

 

[RogertheBodger]

Thats a lot clearer, I would say figure2 is the one, 3 connections, parallel your time switch across L-3, and the Neutral is Marked, If that doesn't work, it is ze Germans

 

[sparkydude]

Thats the thing i have only got two cores going to the switches , so do you reckon it will work with the two cores ????

 

[RogertheBodger]

I take your original post to mean that you want to use this timer to override the time switch, if that is the case then you need a switch live, a switch wire and a neutral at this unit, don't understand which switch you only have two wires at, you want to use the slide switch on the unit to bring on your lighting for 20 minutes yes?

 

[sparkydude]

No , idea is to have retractive switches in the field to enable the client to power the lights up for 20minutes if they feel the need. so the push to make switches have only 2 cores at them


Hope this is clearer


Nick

 

[RogertheBodger]

Thanks Nick, the switches connect to L and 4, the lights connect to N and 3

 

[jaylambert]

hi guys, just a quick question while use r on the subject.

first off ill be changing a broken existing timer (no labelling diagram) that is knackered and will be replacing it with same timer ur discussing above when i upgrade a fuse board this weekend.

correct me if im wrong:
L: incoming
N: incoming
3: load (light fittings feed)
L+4: switching cable operating push switches (N/o) in parallel on each floor with on/off light switch on bottom of staircase acting as override to turn off or on permanently during opening hours (office building), would this work on timer mode and stay on permanently if need be as long as contact is closed ie light switch on ground floor permanently in 'on' position.

any help would be appreciated!

 

[jaylambert]

i think im right but just wanna make sure as ive never come accross one b4...

 

[RogertheBodger]

Hi Jay.

Yes your connections are right for the staircase switches and lights, but for an override function you would need to connect your switch to terminals 1 and 3 in the timer.

You ask "would this work on timer mode AND stay on permanently" not sure what you mean by that, the timer mode is activated by the staircase switches, maximum 'on' 20 min. but once the timer is overridden by the normal light switch, the lights would be permanently on.