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Thread ID: 145665 2017-12-30 08:35:00 Wiring independent sensor to spotlight kiwipork (8973) PC World Chat
Post ID Timestamp Content User
1444196 2017-12-30 08:35:00 Hi All

I’m trying to wire an external sensor to my existing spotlight.

Photo here: trademe.tmcdn.co.nz

According to the manual, instructions that came with the sensor are to wire “A” and “N” to the sensor, and then “Load” to the light fixture.

I’m confused – currently the wires I have from the wall switch are Red, Black and Green. Does this mean attach Red to “A”, and then Black to “N”, and then connect the Red cable going to my spotlight to “Load”?

Many Thanks!!
kiwipork (8973)
1444197 2017-12-30 08:42:00 You need to get an electrician to do this work, you know! KarameaDave (15222)
1444198 2017-12-30 18:20:00 For your own safety and for the safety of your family
You need to get an electrician to do this work, you know! because they are trained and licenced!
coldot (6847)
1444199 2017-12-30 21:36:00 . . . and expensive . R2x1 (4628)
1444200 2017-12-30 23:57:00 A = active - red, or brown (also called phase)
N = neutral - black or blue
E = earth, green or green/yellow

Not because you should do it yourself, but because it seems like you will anyway.
And yes red to A, Load red to A of light, all N connections are black and connect to each other, likewise Earth except green.

If it has a metal body it should be earthed, and if it trips the cct breaker you've done it wrong.

If you think of it as a simple switch, the power goes in on the Brown wire (A) and comes back on the Red (Load) and is switched by the sensor, the neutral is just so the sensor itself can draw some power and is not switched.
Or to put it another way, the red wire that used to power your light now goes into the sensor and the load wire coming out goes to your light.
dugimodo (138)
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