1 NO contact not potential free 16A/250V AC. 230V LED lamps up to 600W, incandescent lamp load up to 2300W. Off delay impulse switch with switch-off early warning and pushbutton permanent light switchable. Standby loss 0.5 watt only. Modular device for DIN-EN 60715 TH35 rail mounting. 1 module = 18mm wide, 58mm deep. Zero passage switching to protect contacts and lamps. State-of-the-art hybrid technology combines advantages of nonwearing electronic control with high capacity of special relays. Control voltage 230V. In addition electrically isolated universal voltage from 8 to 230V UC. Supply voltage and switching voltage 230V. Very low switching noise. If the function ESV is set, definitely variable off-delay time RV from 2 to 120 minutes, settable by minute scale. Contact position indication with two LEDs. This starts blinking after 15 seconds in case of an inhibited pushbutton (not if the function ER is set). Glow lamp current up to 150mA only at the control input 230V independent from ignition voltage (not if the function ER is set). Relays with suitable functions to feed back the switching voltage signal of a dimmer switch. In case of a power failure the system is disconnected in a preset sequence. The functions ES, ESV or ER are selectable by means of a rotary switch. ES = Impulse switch. ER = Switching relay. ESV = Impulse switch with off delay. The impulse switch automatically disconnects after the set delay is timed out if a manual OFF command has not been given. Infinitely variable time range up to 120 minutes. ESV + switch-off early warning = If switch-off early warning is set the stairwell lighting starts flickering approximately. 30 seconds before timeout at repeated shorter time intervals. During this process reset is possible. ESV + pushbutton permanent light = If pushbutton permanent light is set permanent light can be switched on by pressing longer than 1 sec. This switches off automatically after 2 hours or by an operation longer than 2 seconds. ESV + switch-off early warning function and permanent light = If both switch-off early warning function and permanent light by pushbutton set, the switch-off early warning function is activated before switching off the permanent light. If this impulse switch with integrated relay function is in a circuit, which is monitored by a FR12-230V mains disconnection relay, no additional base load is required. However, the monitoring voltage of the FR12-230V must be set to max.