1、When the power supply is unstable. Its protection function will be activated automatically. When the power supply returns to normal, the device will be powered back in 1 minute. 2、Once the voltage exceeds the limited range of the product, it will automatically cut off to protect the safety of electrical equipment and personnel. 3、The green indicator light shows that the power supply is normal. The red indicator light shows overvoltage or undervoltage. 4、The automatic recovery overvoltage and undervoltage protection devices comply with modular design standards. 5、The circuit board of the protector uses high‑quality electronic components with reliable performance. Item Type: Voltage Protection Relay Material: ABS Model: SVP-911 Maximum Transmission Current: 63A Maximum Power: 8.8KVA Overvoltage Action Cut-Off Value:> 270VAC +/- 5V Undervoltage Action Cut-Off Value: <170VAC +/- 5V Overvoltage and Undervoltage Cut-Off: <1s Power Transmission Delay After Power Failure: <60s Own Power Consumption <2W Motor Life: 100000 Times Installation Place: 35mm/1.38in DIN Rail 1 x Voltage Protection Relay