Power supply, switch-mode, Input voltage: 400 V AC - 500 V AC, Output voltage: 24 V DC (adjustable between 22 V and 28 V via potentiometer), Rated Output Current: 20 A at 55 °C, Output power: 480 W, Efficiency: High, Mounting: DIN rail TS 35, Protections: Overload and short-circuit protection, Degree of protection: IP20, Dimensions: 60 mm (W) x 130 mm (H) x 125 mm (D), Operating Temperature: -25 °C to 70 °C