The 9928890015 is a single-phase, switched-mode power supply unit designed to deliver a regulated 15V DC output. It operates over a wide universal input range of 85V to 265V AC and can also accept a DC input from 80V to 370V. This 22.5W power unit provides a 1.5A output current with an efficiency of 78% at maximum load and features overload and short-circuit protection. Housed in an IP20-rated installation housing for TS 35 rail mounting, it is designed to operate in temperatures from -20°C to 50°C. Its universal input and screw terminal connections make it suitable for a wide range of industrial and building automation applications where a reliable DC power source is required.