Rated Exciting Current: 2.5A Excitation Voltage (Auxiliary Winding Voltage): 80 - 120V Sampling Voltage: 16 - 20V Frequency: 50/60HZ Application Scope: 15KW Diesel Generator Unit AC Voltage Output: 120V/240V. Auto Voltage Adjusting Accuracy: 1%. Maximum Temperature Rise: 130C or 266F. Continuous Working Time: 20 Hours.