KNX power supply 320 mA, Busch installation bus KNX, system components/accessories, KNX power supply 320 mA The bus connection is made via the enclosed bus terminal. Display elements: Operating displays via LEDs Connections: KNX line: Bus connection terminal Nominal voltage: , +10 % / -15 % Secondary: , +1 V / -2 V Nominal frequency: 50 Hz/60 Hz Outputs: 1x short-circuit proof Nominal current: 320 mA Protection class (device): IP 20 Temperature range (device): -5 °C to 45 °C Dimensions (H x W x D): 90 mm x 72 mm x 64 mm Pitch unit: 4 TE