Features: 1. The protector has over voltage protection, under voltage protection and other functions 2. The main feature is that the line has overvoltage or undervoltage, overcurrent condition, the product can cut off the power supply instantaneously, protect the electrical equipment from damage when the line voltage returns to normal, the protector can automatically and normally 3. It is mainly used for the protection of over-voltage, under-voltage or over-current in the distribution line of residential household box or the protection of single-phase power equipment. 4. Suitable for single-phase AC voltage 230V, 50 or 60Hz, rated working current 63A and below users or loads 5. Low power consumption and long mechanical life Specification: Condition: Rated voltage 230VAC 50 or 60Hz Rated voltage 1-63A adjustable(default 63A) or 1-40A adjustable(default40A) Overvoltage protection value range 221V-300V-OFF adjustable(default 280V) Overvoltage recovery voltage mediation range 220V-299V(default value 250V) Overvoltage protection action time 0.1s - 10s (default 0.1 seconds) Undervoltage protection value range 219V-150V-OFF adjustable(default 160V) Undervoltage recovery voltage mediation range 151V-220V( default value 180V) Undervoltage protection action time 0.1s - 10s (default 0.1 seconds) Overcurrent regulation range 1-63A (default 63A) or 1-40A(default40A) Overcurrent action range 0.1s -512s (default5.0 seconds) Failure recovery delay time 2s - 512s (default 60 seconds) Power-on delay time 2s - 255s (default 2 seconds) Power consumption 2W Electrical mechanical life 4000 times Installation method DIN rail Working environment Temperature:-25 -and40 Humidity: Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.