Lasting switch relay with 4 channels, 1 normally open contact 8A/250V AC each, 230V LED up to 400W, incandescent lamps up to 1800W, electrically isolated from the supply voltage, with DX technology. Bidirectional. Standby loss only 0.1 watt. Connection to the Eltako RS485 bus. Cross-wiring of bus and power supply with jumper. Each normally open contact can switch 230V LED lamps up to 400 watts and up to a maximum inrush current of 25A/100ms. To do this, simply connect the N conductor to terminal (N) and L to K(L). This results in an additional standby loss of only 0.1 watt. If all 4 relays of the F4SR14-LED are switched on, 1 watt is required. If the supply voltage fails, the device is switched off in a defined manner. The channels can be taught in independently of one another as ES and/or ER channels.