System power supply for video door intercom system VT200. Reverse polarity protected 2-wire bus connection. Suitable for systems with max. 8 call buttons, max. 10 indoor stations and max. 2 door intercoms. Consists of voltage coupler with bus connection and power supply with input voltage 230V, 50Hz, output voltage: 24V DC, power: 60W, in REG housing for top hat rail mounting (5 HP). Dimensions: 88 x 90 x 59mm.