1、Low Noise: This automatic voltage regulator features an excellent quality, strong stability and low noise operation. You can take it for professional performance. 2、Part of Generator Excitation System: The automatic voltage regulator is a part of the generator excitation system. AVR realizes automatic regulation of generator output voltage by controlling the excitation current of generator exciter. 3、Long Life Span: This AVR adopts flame retardant, high temperature resistant components and scratch resistant ABS material to ensure a long life span. 4、Easy to Install: Comes with a compact size and a light weight as well, the easy installation can be quickly completed. 5、Ideal Replacement: This AVR possesses both long life span and no noise operation, is an ideal replacement for the old and damaged parts. 1 x Generator Voltage Regulator Item Type: Generator Voltage RegulatorMode: KI DAVR 250SMaterial: ABSAuxiliary Winding Resistance Voltage: Less than or equal to 135VACSampling Winding Voltage: 17VACCapacitive Protection Voltage: Greater than or equal to 260VACEMI Suppression: Built in surge absorber (varistor)Voltage Regulation Accuracy: Less than ± 5%Voltage Adjustable Range: 185-260VCurrent: Continuous 4A intermittent 7A for 10 seconds (52/105VDC)Resistance: Min. 15 ohm Maximum 100 ohmUnderfrequency Protection (Factory Setting): 60 Hz system presets the inflection point as 54 to 61 Hz50 Hz system presets the inflection point as 45 to 51 Hz