RS485 bus switching actuator staircase off-delay timer FTN12. 1-channel switching actuator, 1 NO contact not potential free 16A/250V AC, incandescent lamps up to 2000 watts, switch-off early warning and switchable pushbutton permanent light. Also for energy saving lamps ESL up to 200 Watt. Only 0.3 watt standby loss.