1. Function: When the line has overvoltage, undervoltage or overcurrent, the voltage protector can instantly cut off the power supply to protect the electrical equipment from damage; when the line voltage returns to normal, the protector will automatically restore. 2. Usage: DIN rail installation, the protector has functions such as overvoltage protection and undervoltage protection, and is suitable for users or loads with single-phase AC voltage of 230V, 50/60Hz and rated working current of 63A and below. . 3. Parameters: Optional specifications: 40A, 63A, power consumption: 2W, electrical and mechanical life 4,000 times, low power consumption of surge protector, long mechanical life, size: about 81 x 36 x 60mm/3.2 x 1.4 x 2.4in. 4. Application: Surge protection action time: 0.1s-10s (default 0.1s), mainly used for overvoltage, undervoltage or overcurrent protection of distribution lines in residential household boxes or protection of single-phase electrical equipment. 5. Safety: Pay attention to the maximum value of the protector's protection current, the protector's zero line N is directly connected, and there is no disconnection function. When the undervoltage cut-off time is greater than 0.3 seconds, the protector will not open after power failure. Power consumption2W Temperature: -25 ~+40 Altitude: no more than 2000m Humidity: < 90% Size: approx. 81 x 36 x 60mm / 3.2 x 1.4 x 2.4in Electrical mechanical life4000 times