Timeguard Timer Light Switch 220 → 240 V ac, 1-Channel

Adjustable continuous switching interval from 0.5 to 20 minutes.
Switching via zero so as not to overtax the electrical contact.
Switching via zero also manages the lighting to extend the service life of the lamp.
Multi-function system with 10 functions to choose from, settings on the front of the device - Warning Interrupt (double flashes twice) in accordance with DIN 18015-2 to prevent sudden darkness; 60 min. long duration function; instant reset (staircase lighting timer) or premature deactivation (pulse switch, pulse switch with drop-out time delay); permanent lighting.
Automatic detection 3 / 4 conductors.

Staircase