ABB I/O module for Use with KNX(TP) Bus System

The ABB makes 4 fold, MDRC Devices for switching and dimming of 2, 4 or 8 independent groups of luminaries with electrical ballasts and 1-10V control inputs. Per channel a potential free relay can be switched on or off via the ABB i-bus® or manually. The

Power supply is not necessary
IP20 degree protection, and mounted on a DIN rail