Dimmer switch control unit for EVG 1-10V, 1 normally open contact non-floating 600VA and 1-10V control output 40mA. Bidirectional. Stand-by loss of only 0.9 watt. Minimum brightness and dimming speed can be set. With light setting control and constant light control. Series installation device for mounting on mounting rail. The latest hybrid technology combines the advantages of wear-free electronic control with high power from special relays. Switching in zero crossing for contact protection. The power requirement of the 12V DC supply is only 0.1W. Also for controlling LED converters with passive 1-10V interface without auxiliary voltage up to 0.6mA. Above with auxiliary voltage. The set brightness level remains stored when the device is switched off (memory). In the event of a power failure, the switching position and the brightness level are saved and, if necessary, switched on when the supply voltage returns. Connection to the Eltako RS485 bus. Cross-wiring bus and power supply with