... &CE three phase step down transformer :ISO&CE 1Input voltage; three phase 380VAC2Output voltage; three phase 220VAC3 Frequency,50-60Hz4Power,40KVA5Load capacity ... °C8Working Humidity; 95%(Without setting the dew)9Height level,≤3000M10High voltage test,1 minute no breakdown under 2.5KV voltage11Noise,≤40 ...