Intelligent Single Phase Adjustable Over Voltage Under Voltage Current Protector 230VAC(63A) 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, 50/60Hz, rated working current 63A and below users or loads 5. Low power consumption and long mechanical life   Specification: Rated voltage 230VAC 50/60Hz Rated voltage 1-63A adjustable(default 63A)/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)/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℃ ~+40℃ Humidity:<90% Altitude: no more than 2000m Size: Approx. 81 x 36 x 60mm / 3.2 x 1.4 x 2.4in Optional Style: 40A, 63A   Package List: 1 x Protector Note: 1. The line conductor should meet the relevant current standard value and the load current cannot be greater than the maximum protection current value of the protector. 2. The neutral line N cannot be connected incorrectly and needs to be secure. The zero line N of the protector is directly connected, and there is no disconnect function. 3. After the product is powered on, do not touch the live parts to avoid electric shock. 4. This protector has no isolation and short-circuit protection. Please use a small circuit breaker at the front end to protect against isolation and short-circuit. Please disconnect the front-end breaker switch when repairing the circuit. If the miniature circuit breaker protection is not used, the short-circuit current cannot be broken when there is a short-circuit fault at the input or output of the protector.  5. Since the protector has self-reset function, after the protector over-current protection and disconnection, immediately remove the load electric appliance and check the circuit circuit, otherwise the protector will frequently turn on the load electric appliance, which will eventually be due to long-term Frequently turning on and off to damage the electrical appliance and the protector itself.  6. Please note! When the undervoltage breaking time is greater than 0.3 seconds, the protector does not open after the power failure. (The power failure of the MCU does not work after 0.3 seconds of power failure)  7. After the overcurrent exceeds 5 times within the specified time, the protector lock will not automatically restore the power supply. You must manually press "SET" to unlock the power supply, which can effectively protect the frequent opening and closing caused by not releasing the overcurrent in time. Damage to the device.