AC Inverter, Supply Voltage: 380...480 V (three-phase)., Network Frequency: 50/60 Hz., Rated power:, High Overload (Heavy Duty): 4 kW (5 HP) at 9.4 A., Fan/Pump (Light Duty): 5.5 kW (7.5 HP) at 12 A., Output Current: Max 9.4 Y., Max Output Frequency: 500 Hz., IP Protection Rating: Generally IP21; also available in IP55 with option (+B056)., EMC Class: C2.