Features 1、Flame Retardant: Crafted with flame retardant PA66 material, this adjustable voltage protector ensures enhanced durability and security, guarding your electric appliances against potential hazards. 2、Versatile Guard: Offering overvoltage guard, undervoltage guard, and voltage display (voltage measuring), manual adjustment of overvoltage, undervoltage, and overcurrent guard values, ensuring optimal performance. 3、Product Usage: Effectively protects your appliances from the detrimental effects of frequent power surges and sags, achieving secondary level guard that minimizes damage caused by unstable voltage conditions. 4、Delay Power On: With a delay ranging from 1 to 999 seconds after voltage stabilization, this protector intelligently restores power, preventing immediate power damage and ensuring a safe restart for your device. 5、Multiple Functions: Featuring user friendly control, this voltage protector allows for reset mode selection, fault inquiry, and factory recovery function, simplifying maintenance and troubleshooting processes. Specification Item Type: Over Under Voltage Protector Material: PA66 Working Voltage: AC220V Rated Current: 63A Overvoltage Adjustable Range: AC130-300V Undervoltage Adjustable Range: AC80-210V Reset/Delay Time: 1-999s Installation: 35mm Standard Rail Package List 1 x Over Under Voltage Protector