Features Volt Regulator: When the input voltage is AC 200V, the maximum output voltage of the AVR can get to 82V, efficient and reliable. Reliable Works: Comes with low frequency protection and over excitation protection function, the AVR enables higher work safety. Practical Uses: Widely used in diesel generator set parts, brushless generator voltage regulation and control, etc., very useful. Perfect Fitting: Applicable to 50Hz/60Hz self excited AC brushless generator and is a part of its excitation system, very durable. Easy to Install: Comes with a light weight and a compact size as well, the easy installation can be quickly completed in minutes. Specification: Item Type: Automatic Voltage Regulator Model: KRS440 Detection Input Voltage: 100-130V single phase or 190-264V AC single phase. Power Input Voltage: 100-264V AC Output Voltage: When the input voltage is AC 200V, the maximum output voltage can get to 82V. Current: Continuous output is 4A, 7.5A instantaneous current is allowed for 10s. Low Frequency Protection Setting: 92% - 94% Steady State Voltage Regulation Rate of Rated Frequency: ± 1%, within the range of 4% engine speed variation. AVR Excitation Voltage Input: 4V AC Over Excitation Protection: 75V, preset value. Fixed Time Delay: 10-15 Seconds Freatures: It is applicable to 50Hz/60Hz self excited AC brushless generator and is a part of its excitation system. Use surface mounting technology. Parallel operation function. Low frequency protection UFRO and LED indicating low frequency status function. With overexcitation protection function, KRS440 can replace the detection voltage 220V of AS440 connected to four wires.  Package List:1 x Automatic Voltage Regulator Package List 1 x Automatic Voltage Regulator