Features Intelligent Chip: Independently set and display power consumption voltage, thanks to the intelligent chip, providing accurate electricity status monitoring. Superior Protection: Safeguards against induced thunder overvoltage in circuits, ensuring safety for household and electrical appliances. Versatile Applications: Efficiently limits transient overvoltage, absorbs surge current energy, and offers practical usage in various scenarios. DIN Rail Mount: Stable and reliable 2P design with DIN rail installation for secure positioning, ensuring robust protection. Clear Digital Display: Features a clear and intuitive digital display screen, enhancing detection efficiency for precise monitoring. Specification: Item Type: Voltage Protector Rated Power Supply Voltage: AC220V (L-N) Rated Power Frequency: 50/60Hz Maximum Load AC Value: 3VA Overvoltage Operation Value: 230V-300V (Factory Default Value: 275V) Undervoltage Operating Value: 140V-210V (Factor: 175V) Over Under Voltage Action Delay: 1-400S Overcurrent Action Delay: 1-30S Lag: 5% (U.I) Power On Delay Reset Time: 1-400S Measurement Error: ≤1% DIN Rail Installation: DIN rail EN/IEC 60715 Package List: 1 x Voltage Protector 1 x User Manual Package List 1 x Voltage Protector 1 x User Manual