Features Circuit Protection: Built-in overcurrent, overheating, temperature control, and short circuit protection ensure safe operation, providing peace of mind for your photovoltaic power system. Easy Installation: Module design with 35mm standard guide rails mounting makes installation and replacement straightforward, saving time and effort during setup and maintenance. Good Performance: IP20 protection level, small leakage current, quick response, and low residual voltage deliver reliable surge protection for your photovoltaic power system, minimizing downtime and damage. Visible Window: The color of the viewing window indicates the working state of the protector, providing clear and intuitive status updates, while the gap discharge electrode enhances safety. PC Material: The fireproof and flame-retardant PC material shell ensures stability and reliability, contributing to the safe and long-term use of the surge protector for your photovoltaic power system. Specification: Item Type: DC Surge Protector Model: SGSP 40 Uc: 1000VDC In: 20KA(8/20μs) Inmax: 40KA(8/20μs) Up: ≤3.8KV Shell Material: Fireproof and high flame retardant PC Installation: 35 standard guide rail Protection Grade: IP20 Package List: 1 x Surge Protector Package List 1 x Surge Protector