Light intensity switches Ex9LA/Ex9LD (Old version)

Light Intensity Switches Ex9L are used for light switching according to actual daylight intensity (Ex9LD device also according to time), so the light fixtures are switched only if necessary and it can save money for consumed energy.

Analogue version works with one switching channel.

Digital version can work with photoelectric and time switch on 2 channels. This switch can automatically change between summer and wintertime. It operates in weekly switching program and can be connect to light control systems with other devices.

External brightness sensor is included in the scope of delivery.

  • Rated operating voltage 230 V AC
  • Analogue and digital version
  • With 1 or 2 channels
  • Without and with integrated time switch
  • External brightness sensor in the scope of delivery


Documents Technical parameters
Tested according to EN 60730-1, EN 60730-2-7, EN 60669-2-1
Rated operating voltage Ue 230 V AC
Rated frequency f 50/60 Hz
AC-1, cos φ 1 16 A
Power consumption 5 VA
Channels 2
Switch contacts CO (change-over)
Incandescent lamp load 2600 W
Halogen lamp 2600 W
Max. switching capacity AC1 / AC15 3700 / 750 VA