Feature: 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. Specification: Item Type: Generator Voltage Regulator Mode: KI DAVR 250S Material: ABS Auxiliary Winding Resistance Voltage: Less than or equal to 135VAC Sampling Winding Voltage: 17VAC Capacitive Protection Voltage: Greater than or equal to 260VAC EMI Suppression: Built in surge absorber (varistor) Voltage Regulation Accuracy: Less than ± 5% Voltage Adjustable Range: 185-260V Current: Continuous 4A intermittent 7A for 10 seconds (52/105VDC) Resistance: Min. 15 ohm Maximum 100 ohm Underfrequency Protection (Factory Setting): 60 Hz system presets the inflection point as 54 to 61 Hz 50 Hz system presets the inflection point as 45 to 51 Hz. Package List: 1 x Generator Voltage Regulator