KNX bus power supply, 4TE, REG, 640 mA. Nominal current 640 mA, continuous current 960 mA, peak current 1200 mA. KNX bus power supply with integrated choke. Supply voltage 230 V AC. Short-circuit proof. Overload proof. Temperature monitoring with shutdown in case of overtemperature. LED display for bus reset, normal operation and overload. With additional unchoked output. 3 year product guarantee.