2S/2D/2T models: single/three-phase 220 V to 240 V; continuous fluctuation of voltage
±10%, transient fluctuation -15% to +10%, that is, 187 V to 264 V; voltage unbalance
rate: < 3%, distortion rate compliant with IEC 61800-2
4T models: three-phase 380 V to 480 V; continuous fluctuation of voltage ±10%,
transient fluctuation -15% to +10%, that is, 323 V to 528 V; voltage unbalance rate: <
3%, distortion rate compliant with IEC 61800-2