Wall mounted PIR occupancy switch


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Wall mounted PIR occupancy switch.

The WAPIR model replaces an existing wall switch – no neutral wire is needed. It fits into a plaster depth wall box. The WAPIR model also has a manual override off switch on the front of the plate.

Product code: WAPIR



The WAPIR requires a permanent live supply and should only be used in applications where the load WILL BE ON for LESS than 16 hours per day. This is to allow its rechargeable battery enough time to recharge itself from the mains supply. The WAPIR is supplied with a load capacitor to augment small loads.

OVERRIDE BUTTON: WAPIR has a push button on the front plate to select between ‘override off’ or ‘automatic mode’. A short press activates the override OFF mode (if the PIR is already in automatic mode). A slowly pulsing LED behind the button indicates when the control is in override OFF mode. The LED can be deactivated by pressing and holding the button for approximately 10 seconds. To reactivate the LED a 10 seconds press and hold is required.

For wall mounting only.

Because WAPIR requires a permanent live supply there are restrictions on its usage:

  • WAPIR should only be used in applications where the lights would not be ON for more time than they are OFF. This is to allow its rechargeable battery enough time to recharge itself from the mains supply.
  • Wiring WAPIR’s in parallel will increase the ON status of a load and therefore the battery may not have sufficient time to recharge.
  • The load MUST be able to pass parasitic current. The battery may not charge with some low energy / high efficiency luminaire products that do not pass sufficient parasitic current.
  • If power factor correction capacitors are inbuilt to the luminaire, it is not advised to add additional CAPLOADs to the switching circuit.



The WAPIR is suitable for small offices, meeting rooms, tutoring rooms, etc.




Detection Zone: 120°
Time lag range: 10 seconds to 40 minutes in 9 steps
Photocell range: 30 to 1000 lux, and inactive
Maximum Load: Up to 6 amps (1500W) of resistive loads.
Up to 6 amps (1500W) of fluorescent loads.
Up to 6 amps (1500W) of electronic and wire wound transformer loads.
Up to 6 amps (1500W) of LED lamps and drivers (PF ≥ 0.95).
Up to 1 amp (250W) of fans.
Minimum Load:

20W per WAPIR in the circuit.
A load capacitor (CAPLOAD) is supplied to augment small loads.

Dimensions: 86 x 86 x 22mm. Wall box depth 16mm



  • DimensionsOpen or Close
    WAPIR: 86 x 86 x 22mm
    Requires 16mm deep box
  • Detection DiagramsOpen or Close

    icn-detection-strongStrong detection zone
    ie. person moving arm

    icn-detection-secondarySecondary detection zone
    ie. person walking (less sensitive when walking straight towards PIR switch)

    PIR Quad detector gives 124 detection areas within the zone


    Perspective view of detection zone

    Ideal mounting height between 1 and 1.8m


    Side elevation of detection zone


  • Wiring DiagramsOpen or Close
    Single WAPIR wd21a

    A few WAPIR wired in parallel
    (Maximum of 3 WAPIR)