Discuss Seperate PIR to outside light.......stays on...... in the Industrial Electrician Talk area at ElectriciansForums.net

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nelly13

Seems a common thread......... Outside bulk head...separate PIR.......wired..... live to PIR, neutral to bulkhead, switched live back to bulkhead, ( pir marked L and L1 but with a N???)........ Bulkhead remains ON....constantly... tried all the normal stuff switched off and on etc etc etc .....quite an old PIR apparently......anyway my question...do i need a neutral to the pir???... I assumed the pir would act as a 'switch' when activated.........

Or is it me????

Is it the L and L1.......should they be swopped????

Suggestions...... (constructive please)

nelly13
 
all the PIRs i've ever seen require a neutral. L and N in. S/L and N out.
 
I'm with the rest of the gang, all the PIRs I have seen weather integrated into a fitting or separate have a neutral connection in them. Also be worth checking the MI of the PIR to ensure you have connected the L and L1 correctly.
 
all the PIRs i've ever seen require a neutral. L and N in. S/L and N out.

The only PIRs I've really seen without a neutral are like these.

PDS-PRM | 10A Motion Sensor Wall, 1 Way, 1 Gang, 240V ac | RS
uk.rs-online.com › ... › Plate & Light Switches
No Neutral PIR Presence Detector. A contemporary styled fast fit presence detector with concealed fixing screws. This detector does not require a neutral ...

edit link doesn't work.

replacements for light switches.
 

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The only PIRs I've really seen without a neutral are like these.

PDS-PRM | 10A Motion Sensor Wall, 1 Way, 1 Gang, 240V ac | RS
uk.rs-online.com › ... › Plate & Light Switches
No Neutral PIR Presence Detector. A contemporary styled fast fit presence detector with concealed fixing screws. This detector does not require a neutral ...

edit link doesn't work.

So not really external pir`s as op stated...?
 
If there were a neutral terminal on something why would you not connect a neutral to it?
 
D..............i.................y.....e...........r

According to Nelly's profile he's a qualified sparky.

As such I'm sure he's aware that whatever theories are presented here he needs to follow the manufacturers instructions including their suggested wiring. Consequently it's something of a moot question so thread closed.
 

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