Features Comprehensive Circuit Protection: Features built-in overcurrent, overheating, and short circuit safeguards to ensure safe operation in photovoltaic power systems User-Friendly Installation: Designed for easy setup with a module structure and compatible with 35mm standard guide rails for quick replacement Excellent Performance: Offers a low leakage current and quick response time, ensuring efficient operation with minimal residual voltage for reliable protection Intuitive Status Indicator: The visible window provides clear color-coded indicators of the working state, allowing for easy monitoring of the device's performance Durable Fireproof Material: Constructed from PC material, this surge protective device is flame retardant and stable, ensuring long-lasting and safe use in various environments Features: 1、CIRCUIT PROTECTION: DC surge protector with built in overcurrent, overheating, temperature control and short circuit protection to ensure safe . 2、EASY INSTALLATION: The surge protector is a module design, adopts 35mm standard guide rails mounting, which is easy to install and replace. 3、GOOD PERFORMANCE: With IP20 protection level, the surge protective device has small leakage current, quick response and low residual voltage. 4、VISIBLE WINDOW: The color of the viewing window indicates the working state of the protector, clear and intuitive, with gap discharge electrode. 5、PC MATERIAL: The shell of the protector is made of PC material, which is fireproof and flame retardant, stable and reliable, ensuring safe use. 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