... , CE, ISO certificate . Brushless,H class Insulation, IP23 Diesel Generator set power by Cummins engineFrequency50HZ60HZVoltage400V440VSpeed1500RPM1800RPMOutput range20KW/25KVA---800KW/1000KVA8KW10KVA---50KW/62 ... .After expiration,our company provides cost spare parts maintenance for gen-setManufacturing StandardsISO8528, ISO1105,ISO3046; GB/T2820,GB755,BS5000, NAMAMG-22 ...