3-phase transformer: 1. red copper wire and silicon steel sheet 2. rated power: 0.5KVA-100KVA 3. low heating, low noise 3phase transformer has follow features:1. red copper wire and silicon steel sheet2. rated power: 1KVA-100KVA3. input voltage: 220V,380V,etc4. output voltage: 24v,26v,36v,220v,400v,380v,660v,etc5. insulation level: B 6.noiseless, low heating value, stable in performance