HDL KNX / EIB multifunction Panel controller are in full compliance with European safety standards and the KNX association protocol. The touch panels have touch keys and background lights. KNX Smart 4 Buttons wall touch switch Panel. 

Working Voltage : 21~30V DC 
Control IO : KNX TP1 control port 
Bus Current : ＜12mA 
Dimensions : 86mm×86mm×10.5mm 
Net weight : 107.4g

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