Bus power supply, 2SU MDRC, 320 mA. Nominal current 320 mA, continuous current 480 mA, peak 640 mA. KNX power supply with integrated choke. Mains voltage 230 V AC. Short-circuit-proof. Overload safe. Temperature control with shutdown at over temperature. LED indicator for bus reset, normal operation and bus overload. 3 year warranty.