Power supply 320 mA with integrated choke for Gira One and KNX DRA Power supplies for supplying KNX devices with bus voltage. Features: Output with integrated choke to supply KNX bus lines. Output DC 30 V to supply additional devices. Rated current can be flexibly split up amongst outputs. Reset button. Short-circuit-proof. Overvoltage protection. Open circuit-proof. Suitable for operation in systems with emergency power supply. Zero-voltage signal contact for operating message and diagnostic message. Two power supplies for KNX of the same type to increase performance can be switched directly in parallel. Notes : Installation on DIN top-hat rail. VDE approval in accordance with EN 60669-1, EN 60669-2-1.