1、Single-phase line has over-voltage, under-voltage or over-current faults will automatically cut off, and the single-phase line voltage will return to normal after delay. The line will be automatically reset and connected without manual operation 2、When the line appears transient overvoltage, the protection does not produce malfunction 3、The protector itself will not be damaged when the line voltage is unstable due to faults such as false contacts or sudden power failure and sudden power on 4、When the line fault voltage is the highest, protector can prevent electrical equipment from being damaged 5、The overvoltage value, undervoltage value, overcurrent value, and delay value can be set by yourself, and the corresponding parameters can be adjusted according to the actual situation of the user Item Type: Over Under Voltage Protector Material: ABS shell Model: SVP-918 Main Technical Parameters: Rated Current: 1A~63A adjustable (default 63A) Undervoltage Action Cut-off Value: 210V~140V adjustable (default 160V) Power Transmission Delay After Power Failure: 5s Delay Range: 1s~600s adjustable (default 30 seconds) Electrical Machinery Life: ≥ 50,000 Times 1 x Over Under Voltage Protector 1 x User Manual