Rated capacity from 5KVA to 2500KVA Rated High-voltage 11, 10.5, 10, 6.3, 6 Rated Low-voltage 0.4kv Connection group: Dyn11 or Yyn0 Frequency: 50Hz Insulating level: LI 75 AC 35/LI 0 AC5 This product has many advantages such as high efficiency,low loss, which will save much of electricity consumption and operating cost.