Non-potential-free switch 16 A/250 V AC, suitable for incandescent lamps up to 2300 W, energy-saving lamps (ESL) and LED lamps up to 200 W. Control voltage 230 V and/or 8. 230 V UC. Switch-off pre-warning and permanent light function can be activated. Standby loss is only 0.5 W. Features ESL optimization and multifunctionality. Modular device for mounting on DIN-EN 60715 TH35 rail. 1 modular unit = 18 mm wide, 58 mm deep. Functions and times are entered according to the user manual using the MODE and SET buttons and displayed digitally on the LC display. A button lock is possible. Contact switching at zero crossing to protect contacts and lamps, which particularly extends the lifespan of energy-saving lamps. The silent electronics do not disturb even the most sensitive ear – unlike many synchronous motors with mechanical gears. By using a bistable relay, there is no coil loss and no heating even when switched on. After installation, wait for the automatic short synchronization before connecting the switched load to the power supply. Control, supply, and switching voltage are 230 V. Additionally, it has galvanically isolated universal control voltage 8. 230 V UC. Suitable for 3- and 4-wire circuits, extendable, with attic lighting in 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. Precise time setting from 1 to 99 minutes. Dedicated permanent light button with the protruding SET button in the functions TLZ, ESV, ES, and ER. With motion detector control input BM, which converts the input signal into a control pulse in the TLZ function. The permanent light function is not active here. After a power failure in the TLZ function setting, the lighting will be turned back on if the time period has not yet expired. The time countdown is displayed in the center of the display.