... 3phase 4 wires, 230/400V 50Hz Cummins Generator Set Cummins Generator Set Engine Option: CUMMINSWater-Cooling,electric start, Four ... ,IP21/23 protection,H class insulation; Cummins Generator Features:Feature Frequency50Hz60HzPrime Power20KW~2400KW22KW~2400KWVoltage 230/400V ... operation manual and document Optional Accessories of Cummins generator SetIntelligence control panel, water heater, oil-water ...