Noiseless Solid-State-Relay, also for ESL and LED-Lamps. Switch-off pre-warning and scanner light can be attached. Stand-by loss only 0.4 watts. With ESL optimization and multi-function. Switching in zero crossing to protect the lamps. In particular, this extends the service life of energy-saving lamps. Additionally with galvanically isolated universal control voltage 8..230V UC. For 3- and 4-wire circuits, can be switched on and off, with roof lighting for 4-wire switching. Automatic detection of the switching type. Glow lamp current up to 50mA, depending on the ignition voltage of the glow lamps. Exact time setting 1 to 30 minutes with minute scale. Continuous light switch with the large rotary switch. After a power failure in the TLZ function setting, the lighting is switched on again if the time has not yet been completed. With double connections for button and lamp, so that can be connected either above and below or only below. When the switch-off pre-warning is activated, the lighting flickers approx. 30 seconds before the time runs out and a total of 3 times in shorter intervals. With the continuous button light switched on, the button can be set to continuous light for longer than 1 second, which is switched off automatically after 60 minutes or can be switched off with buttons for longer than 2 seconds. If continuous button light and switch-off pre-warning are activated, the switch-off pre-warning only takes place after the continuous light is switched off.This text is machine translated.