Noiseless solid-state relay, not potential-free, 230V LED lamps and ESL up to 400W, incandescent lamps up to 400W. Switch-off warning and push-button permanent light can be switched on. Standby loss only 0.4 watts. With ESL optimization and multifunction. Modular device for mounting on DIN-EN 60715 TH35 mounting rail. 1 division unit = 18mm wide, 58mm deep. Zero-crossing switching to protect the lamps. The noiseless electronics and contact switching do not bother the most sensitive ear - in contrast to many synchronous motors with mechanical gears. Control, supply and switching voltage 230V. Also with galvanically isolated universal control voltage 8..230 V UC. For 3- and 4-wire circuits, can be switched on later, with attic lighting for 4-wire circuits. Automatic detection of the circuit type. Glow lamp current up to 50 mA, depending on the ignition voltage of the glow lamps. Exact time setting 1 to 30 minutes with minute scale. Permanent light switch with the large rotary switch. After a power failure in the TLZ function setting, the lighting is switched back on if the time period has not yet ended. With double connections for button and lamp, so that it can be connected either at the top and bottom or just at the bottom. If the switch-off warning is switched on, the lighting flickers starting around 30 seconds before the time expires and a total of 3 times at increasingly shorter intervals. If the permanent light button is switched on, you can set the light to permanent by pressing the button for longer than 1 second, which switches off automatically after 60 minutes, or you can switch it off by pressing the button for longer than 2 seconds. If the permanent light button and switch-off warning are switched on, the switch-off warning only occurs after the permanent light is switched off. If all or part of the energy saving lamps ESL are switched on, then set the switch-off warning and the permanent light button on the right ESL side of the rotary switch. Within the first second after switching on or switching on again, the time for the TLZ functions can be extended by briefly pressing the button up to three times (pumping). Each press adds the set time once. With multifunction: Can be switched to the functions ES (impulse switch), ER (relay) and ESV (impulse switch with release delay). In the ESV function, the times (t) that can be set with the middle rotary switch correspond to the following values: 1 = 2min, 2 = 5min, 3 = 10min, 4 =15min, 6 = 25min, 8 = 35min, 10 = 45min, 12 = 60min, 20 = 90min, 30 = 120min. After the set delay time has elapsed, the light is switched off automatically if the manual off command has not been given. The switch-off warning and button permanent light can also be switched on with ESV. Forgotten permanent light is switched off after 2 hours.