Features: 1. Self-resetting over and under-voltage protection devices designed according to modular standards. 2. The product board utilizes high-quality electronic components for reliable performance. 3. When the power supply is unstable, its protection function activates automatically. If the voltage exceeds the product's limit range, it will automatically disconnect to protect electrical equipment and personnel. 4. When the power returns to normal, the device will reconnect within 1 minute. 5. A green light indicates normal power supply operation, while a red light signifies overvoltage or undervoltage. Specifications: Features: Self-resetting over and under-voltage protection devices designed according to modular standards. The product board utilizes high-quality electronic components for reliable performance. When the power supply is unstable, its protection function activates automatically. If the voltage exceeds the product's limit range, it will automatically disconnect to protect electrical equipment and personnel. When the power returns to normal, the device will reconnect within 1 minute. A green light indicates normal power supply operation, while a red light signifies overvoltage or undervoltage. Specification: Function: Over and Under-voltage Protection Rated AC Voltage: 230V 50Hz Maximum Transfer Current: 40A Maximum Power: 8.8KVA Overvoltage Action Cut-off Value: > 270VAC +/- 5V Normal Voltage: 175-270VAC Undervoltage Action Cut-off Value: