Dimmer switch controller for electronic ballast 1-10V, 1 NO contact not potential free 600VA and 1-10V control output 40mA. Bidirectional. Only 0.5 watt standby loss. With adjustable minimum brightness and dimming speed. With light scene control and constant light regulation. Modular device for DIN-EN 60715 TH35 rail mounting. 1 module = 18mm wide, 58mm deep. State-of-the-art hybrid technology combines advantages of nonwearing electronic control. Zero passage switching to protect contacts. The power consumption of the 12V DC power supply is only 0.1W. Also adapted for LED driver with 1-10V passive interface, without voltage source up to 0.6mA, above this value an additional voltage source is necessary. The brightness level is stored on switch-off (memory). In case of a power failure the switch position and the brightness stage are stored and may be switched on when the power supply is restored. Connection to the Eltako-RS485 bus. Bus cross wiring and power supply with jumper. The minimum brightness (fully dimmed) is adjustable with the % lamp rotary switch. The dimming speed is adjustable using the dimming speed rotary switch. The load is switched on and off by a bistable relay at output EVG. Switching capacity for fluorescent lamps or LV halogen lamps with EGV 600VA. By using a bistable relay coil power loss and heating is avoided even in the on mode. After installation, wait for short automatic synchronisation before the switched consumer is connected to the mains. The pushbuttons can be taught-in either as direction pushbuttons or universal pushbuttons: As a direction pushbutton, press up is brighter and press down is darker respectively above short pressing means switch ON and below short pressing switch OFF. A double click above activates automatic updimming until full brightness with dim speed. A double click below activates snooze function. The children’s room function will be realized with the upper switch. As a universal pushbutton, change the direction by briefly releasing the pushbutton. With switching operation for children’s rooms and snooze function. Switching for light alarm clocks: A wireless signal of a time clock which was taught-in accordingly starts the wake up function by switching on the light at the lowest brightness level and dims up slowly until the maximum level is reached. The dimming process is stopped by tapping briefly (e.g. on a hand-held transmitter). Switching operation for children’s rooms: If the light is switched on by holding down the pushbutton (universal pushbutton or direction pushbutton above), it starts at the lowest brightness level after approx. 1 second and dims up slowly as long as the pushbutton is held down. The last saved brightness level is not modified. Snooze function (universal pushbutton or direction pushbutton below): With a double impulse the lighting is dimmed down from the current dimming position to the minimum brightness level and switched off. The current dimming position as well as the adjustable minimum brightness level determine the dimming time (max. = 60 minutes) which can be reduced as required. It can be switched off at any time by short-time control commands during the lighting is dimmed down. The LED below the upper function rotary switch performs during the teach-in process according to the operating instructions. It shows control commands by short flickering during operation.