... , ISO certificate . Brushless,H class Insulation, IP23 Diesel Generator set power by Cummins engineFrequency50HZ60HZVoltage400V440VSpeed1500RPM1800RPMOutput range20KW/25KVA---800KW/1000KVA8KW10KVA---50KW/62.5KVAPower ... , alternator space heater, cooling for heating exchange, communictaion interface, battery charger by main supply, daily fuel tank, ATS and paralleling system ...