Detailed Product Description Models: EN-Y10: 8kW/10kVA EN-Y13: 10kW/12.5 EN-Y15: 12kW/15kVA EN-Y20: 15kW/20kVA EN-Y25: 20kW/25kVA EN-Y32: 25kW/31kVA EN-Y37: 30kW/37.5kVA Engine: Yangdong brand, water cooled, four-stroke, three or four cylinders, 1, 500 or 1, 800rpm diesel engine Alternator: Stamford complete copy model or ST /STC brush alternator Generator system options: Frequency: 50Hz or 60Hz Phase: Single phase or three phase Voltage: Series start (380-480V), parrel start (190-240V), and series delta (220-254V)