indoor motion sensor light switch wiring diagram

This type of switch should be labelled AUTO-OFF-ON. SL at the PIR is also connected, however this doesn't change anything. In the L2 position, the lights are connected to the supply. L2 at the switch is just being used to connect two wires together. In the L1 position, the PIR is powered and can activate the lights when motion is detected. In the centre off position, nothing is connected so the lights and sensor are off permanently. Much of the wiring is the same as described above for the two switches.įor this single switch, incoming line connects to COM, L1 to L on the PIR, and SL and the lights connect to L2. In the centre position, nothing is connected. This type of switch has 3 terminals and 3 positions. These are less common, and are usually found as part of a 'grid' wiring range where the switch modules and plates are separate items. This requires a 2 position and centre off switch. If the right switch is also on, the lights are permanently connected to line, and will be always on.įor ease of use, the left switch should be labelled 'OFF/ON' and the right switch 'AUTO/ON'. With the left switch on, the PIR is powered and will activate the lights when motion is detected. In the off position, the lights and sensor are off permanently. L1 on the second switch connects to SL (switched line) on the PIR, and also to the lighting. L1 on that switch connects to COM on the other switch and to L at the PIR sensor. Incoming line connects to COM on one switch. The three Neutral wires are connected together in another terminal block.

The three Earth wires are connected together in a terminal block. These can be screw terminals or other types such as Wago connectors. Two additional connection terminals are needed at the switch - one for earth, one for neutral. This can be extended to additional lights if required. The other cable 'light' is connected to the light fitting. The cable marked Supply is connected to the consumer unit or some other source of power such as a fused connection unit or plug. Wiring for lights that can either be off, operated by a motion sensor, or permanently on. Lighting Circuits - Connecting a PIR motion sensor with an override switch

Indoor motion sensor light switch wiring diagram