Wireless 8-fold transmitter module, 8 control inputs for universal control voltage. With replaceable transmit antenna. If required, a wireless antenna FA250 can be connected. Only 0.5 watt standby loss. Modular device for DIN-EN 60715 TH35 rail mounting. 2 modules = 36mm wide, 58mm deep. The wireless transmitter module F8S12-UC has eight channels and, like wireless pushbuttons, it can transmit local and central control signals into the Eltako wireless network. 4 control inputs may be connected to different potentials since they are electrically isolated. Control voltage 8 to 253V AC or 10 to 230V DC. A 12V DC voltage is supplied from a switching power supply unit FSNT12-12V/12W which has a width of only 1 module.