Ceiling flush-mounted PIR occupancy switch


Ceiling flush-mounted PIR switch.

These neat and unobtrusive models are ideal for flush mounting through suspended or plasterboard ceilings.

They have a 2m cable, for quick installation.

Product code: CEFL PIR

Download Installation Guide




Detection Zone: 360°
Time lag range: 10 seconds to 40 minutes in 9 steps
Photocell range: 30 to 1000 lux, and inactive
Loading: Up to 6 amps (1500W) of resistive loads.
Up to 6 amps (1500W) of fluorescent loads.
Up to 3 amps (750W) of electronic and wire wound transformer loads.
Up to 2 amps (500W) of CFL, 2D lamps, LED Drivers and LED lamps and fittings.
Up to 1 amp (250W) of fans.
Dimensions: 72mm diameter x 68mm


  • DimensionsOpen or Close
    Requires 63 or 64mm (2.5") diameter hole in a false or plasterboard ceiling cefl-dimensions
  • 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

    For optimum coverage recommended mounting height between 2.4 and 5m


    Several PIR occupancy switches


    In open plan areas

    For best coverage the PIR occupancy switches should be spaced every 5m in either direction

  • Wiring DiagramsOpen or Close
    Single CEFL PIR wd12a
    A few CEFL PIR wired in parallel wd12b



PIR occupancy switch variants

Variants are available on request such as 24V or 12V (a.c. or d.c.), ideal for low voltage control systems. To special order we can also supply volt free outputs for mains, 24V or 12V supplies (including versions with gold contact relays).