Functions: 1.Over-voltage protection. 2.Under-voltage protection. 3.Over-current protection.<br> 4.Automatic recovery. 5.Voltage display(voltage measurement).<br> 6.Current display (current measurement).<br> Parameters: Model number:SVP916-40A; Power supply:110V; Overvoltage value: 130-150V-OFF (default 140V); Overvoltage recovery value: 131-149V (default 135V)<br> Undervoltage value: OFF-80-100V (default 90V); Undervoltage recovery value: 81-99V (default 95V); Normal working voltage: 100~130VAC 50/60Hz<br> Electric machinery life : 100,000 times<br> Installation:35mm DIN rail<br> Colour: white<br> Material: ABS + electronic component<br> Size: 9.0 cm x 4.0 cm x 5.0 cm<br> Package Contents:<br> 1 x Voltage protector SVP-916-40A<br> 1 x Manual instructions in English<br> Noted:<br> 1.Press "SET" for 3 seconds, please press continuously "SET" to adjust the required parameter value as follows, or to adjust the setting value . When "END" appears, press "SET" again, the data will be saved and valid.<br> 2. Voltage indicator: The voltage indicator flashes quickly in case of over-voltage, slowly in case of under-voltage, and it is constantly on in case of normal voltage.<br> 3.Current indicator: The current indicator flashes in case of over-current, and it is constantly on when current is normal.<br> 4.After pressing "Set", if there is no operation within 10 seconds, the device status will be automatically exited, and the changed parameters will not be saved.<br> 6.Press " and " together for 3 seconds, and the LED will be off for 1 second, indicating that the default parameter value of restoring factory settings is completed.<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.