LUNA 128 star


  • Twilight switch with integrated light sensor
  • Adjustable On and Off switching delay
  • to avoid faulty operation caused by lightning, car headlights etc.
  • Expanded brightness range
  • Test button
  • for monitoring installation independent of set brightness value. The button can be accessed without opening the device
  • Cable feed from the back and from below
  • Cover with snap-on function when opening for the straightforward installation of the device
  • Captive screws
  • Large terminal area
  • Brightness value can be set without opening the device
  • Large light exposure angle (approx. 180 degrees)
  • Infinitely adjustable switching brightness

Technical data

Operating voltage 220 – 230 V AC
Frequency 50 – 60 Hz
Number of channels 1
Stand-by consumption ~0,6 W
Setting range brightness 2 – 2000 lx
Preset brightness value 15 lx
Switch-on delay 2 – 100 s
Switch-off delay 2 – 100 s
Type of contact NO contact
Switching output Not potential-free (230 V)
Installation type Wall installation or mast bracket
Type of connection Screw terminals
Keyboards 1 test button
Switching capacity

16 A (at 230 V AC, cos φ = 1), 10 AX (at 230 V AC, cos φ = 0.3)

Incandescent lamp load 2300 W
Halogen lamp load 2300 W
Fluorescent lamp load (conventional) not corrected 2300 VA
Fluorescent lamp load (conventional) series-corrected 2300 VA
Fluorescent lamp load (conventional) lead-lag circuit 2300 VA
Fluorescent lamp load (conventional) parallel-corrected 400 VA 42 µF
Energy saving lamps 90 W
Fluorescent lamp load (electronic ballast) 350 W
LED lamp < 2 W 20 W
LED lamp 2-8 W 55 W
LED lamp > 8 W 70 W
Test approval VDE
Housing and insulation material High-temperature resistant, self-extinguishing thermoplastic
Ambient temperature -35 °C … +55 °C
Type of protection IP 55
Protection class II

Connection example

LUNA 128 star

Scale drawings

LUNA 128 star


Article number Data sheet Documents basket
Adapter plate LUNA star - The adapter plate simplifies the replacement of faulty twilight switches from Eberle, ESYLUX, Legrand,
                                 Grässlin, Hager, Merten, Senmatic, Theben etc. As the plate has standard fixing holes, no further holes need to be drilled
                                 in the facade, 2 installation screws included.

Adapter plate LUNA star



Format Download
Operating instructions PDF
Tender texts DOC
LUNA 128 star - Twilight switch with integrated light sensor

LUNA 128 star

Article number 1280700
Data sheet
Documents basket