Item Type: Automatic Voltage Regulator_x000D_ Model: KRS440_x000D_ Detection Input Voltage: 100-130V single phase or 190-264V AC single phase. _x000D_ Power Input Voltage: 100-264V AC_x000D_ Output Voltage: When the input voltage is AC 200V, the maximum output voltage can get to 82V. _x000D_ Current: Continuous output is 4A, 7.5A instantaneous current is allowed for 10s. _x000D_ Low Frequency Protection Setting: 92% - 94%_x000D_ Steady State Voltage Regulation Rate of Rated Frequency: 1%, within the range of 4% engine speed variation. _x000D_ AVR Excitation Voltage Input: 4V AC_x000D_ Over Excitation Protection: 75V, preset value. _x000D_ Fixed Time Delay: 10-15 Seconds_x000D_ 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.