Pulse relay with 4 channels, isolated from the supply voltage, featuring DX technology. Bidirectional. Standby loss of only 0.1 watts. Connection to the Eltako RS485 bus. Cross-wiring of bus and power supply with a jumper. Each normally open contact can switch 230V LED lamps up to 400 watts and a maximum inrush current of 25A/100ms. Simply connect the neutral conductor to the terminal (N) and the live conductor to K(L). This results in an additional standby loss of only 0.1 watts. If all 4 relays of the F4SR14-LED are activated, 1 watt is required. In the event of a power failure, it is defined to be switched off. The channels can be programmed independently as ES and/or ER channels.