The multifunctional self-resetting dual display protector integrates over-voltage protections, under-voltage protections, over-current protections. When there is over-voltage, under-voltage and over-current solid barriers in the line, this product can instantly cut off the circuit, avoiding damage to electrical equipment. When the line voltage or current returns to normal, the product will automatically resume normal power supplys after the delay time set by the user, no manual operation is required (under automatic mode); or you need to resume it by yourself (under manual mode). Features: The multifunctional self-resetting dual display protector integrates over-voltage protections, under-voltage protections, over-current protections. Dual-display design, support current voltage value display (voltage measurement) and current value display (current measurement) function. When the line has overvoltage, undervoltage and overcurrent faults, the product will automatically cut off the line. Two reset modes selection design, you can choose automatic mode and manual mode according to your demands. When the line voltage or current returns to normal, the product will automatically resume normal power supplys after the delay time set by the user, no manual operation is required (under automatic mode); or you need to resume it by yourself (under manual mode). The overvoltage protections value, undervoltage protections value and overcurrent protections value are adjustable. Support set the over-voltage recovery value, undervoltage recovery value and overcurrent recovery value. Over-voltage protections action time adjustable, under-voltage protections action time adjustable, overcurrent protections action time adjustable, fault recovery delay time adjustable, power-on delay time adjustable. Equipped with fault inquiry function and restore factory settings function. Specifications: Name: Adjustable Voltage Protector Material: plastics Type: AC110V 40A, AC110V 63A, AC110V 80A, AC220V 40A, AC220V 63A, AC220V 80A (optional) Over-voltage protections value ranges: 221V-300V-OFF (default 280V) Over-voltage recovery value ranges: 220V-299V (default 250V) Over-voltage protections action time ranges: 0.1-10s (default 0.Is) Suggest 0.1s Under-voltage protections value ranges: 219V-150V-OFF (default 160V) Under-voltage recovery value ranges: 151V-220V (default 180V) Under-voltage protections action time ranges: 0.1-10s (default 0.1s) Suggest =0.3s Over-current protections value ranges: 1A-63A(default 63A)/ 1A-63A(default 40A) Over-current protections action time ranges: 0.1-512s (default 5.0s) recommend to set depending on usage Fault recovery delay time ranges: 2-512s (default 60s) Power on delay time ranges: 2-255s (default 2s) Item size: 85 * 65 * 36mm / 3.35 * 2.56 * 1.42in Item weight: 177g / 6.24ounce Package size: 90 * 70 * 50mm / 3.54 * 2.76 * 1.97in Package weight: 200g / 7.05ounce Packing List: 1 * Adjustable Voltage Protector