Multiple Functions: This protector has over voltage protection, under voltage protection, and other useful functions. Advanced Features: The main feature of this protector is its ability to cut off power supply instantaneously when there's an overvoltage, undervoltage or overcurrent situation, thus protecting electrical equipment from damage. When the voltage returns to normal, the protector can automatically restore power. Wide Applications: This protector is mainly used for the protection of over-voltage, under-voltage, or over-current in the distribution line of residential household boxes or the protection of single-phase power equipment. High Compatibility: The protector is suitable for single-phase AC voltage 230V, 50/60Hz, rated working current 63A and below users or loads, making it perfect for homes, offices, and other settings. Efficient and Durable: This protector has a low power consumption and a long mechanical life, ensuring efficient and reliable performance for years to come. Colour:White Material:Plastic+Metal Size:About 85x30x65mm Package Contents: 1 x Voltage protector Only the above package content, other products are not included. Note: Light reflection 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.