Provides perfectly stable output even under severe conditions of unbalanced voltage conditions. Ideal to protect the electrical and electronic equipments from high and low voltage. Technical Specifications Input Voltage Range : 300 – 460V 340 – 480V 360 – 460V AC 3 Ph Output Voltage (3 Ph) : 415V AC System : Unbalanced 4 wire: R Y B N Connections : Star Operating Frequency : 47 to 53 Hz Output Voltage Adjustable : 380 to 415V AC in 3 Ph Output Voltage Regulation : + 1% (No Load) Output Voltage Regulation : + 1% (Full Load) Overload Capacity :