1、With over voltage protection, under voltage protection and other functions 2、LCD display can display voltage 3、The overvoltage protection value, overvoltage recovery value, overvoltage protection action time, undervoltage protection value and undervoltage recovery value are adjustable, easy to operate. 4、This protector has reset mode selection 5、The protector has low power consumption and long mechanical life Features: 3. The overvoltage protection value, overvoltage recovery value, overvoltage protection action time, undervoltage protection value and undervoltage recovery value are adjustable, easy to operate. 4. This protector has reset mode selection 5. The protector has low power consumption and long mechanical life Specification: Condition: 100% Brand new 230VAC 50/60Hz Overvoltage protection value range 221V-290V-OFF adjustable(default275V) 216V-285V(default value245V) Overvoltage protection action time 0.1s -3s (default 0.2 seconds) Undervoltage protection value range 219V-150V-OFF adjustable(default170V) 155V-224V( default value185V) Undervoltage protection action time 0.1s -30s (default 0.2 seconds) Failure recovery delay time 2s -120s (default 60 seconds) Power-on delay time 2s -10s (default 2 seconds) Power consumption ≤2W Electrical mechanical life ≥4000 times Installation method DIN rail Working environment Temperature:+40℃ ~ 25℃ Humidity:<90% Altitude: no more than 2000m Size: Approx. 81 x 36 x 60mm / 3.2 x 1.4 x 2.4in Package List: 1 x Protector