Theben KNX 1280mA Power Supply (PS 1280 mA T KNX)

The Theben PS 1280 mA T KNX (article 9070959) supplies and monitors the system voltage of one KNX line. It delivers 30 V DC (±2 V, SELV) with a nominal KNX current of 1280 mA through an integrated choke, and also provides a 30 V DC auxiliary supply. It runs on 220–240 V AC, 50–60 Hz, with standby consumption of ≤0.8 W and a mains-failure bridging time of at least 130 ms. A reset key triggers a 20-second bus reset, and the output is continuously short-circuit protected (uninterrupted short-circuit current max. 3 A). The unit is 4 modules wide for DIN-rail mounting, IP20, protection class II, for ambient temperatures from -5 °C to 45 °C.