Feature: 1. Premium Design: The product shell is made of PC flame retardant material, making it safer to use. Modular design, very simple to use and maintain, and good conductivity. 2. With High Safety: Built in short circuit technology for overcurrent protection, overheating protection, and temperature control. The maximum continuous working voltage of the product is 1000V. 3. Reliable Operation: Adopting accuracy electronic components, with longer service life and more stable performance, helps you complete your work more effectively. 4. Quick Response: When the system experiences surge overvoltage due to lightning strikes or other reasons, the protector immediately opens within nanoseconds and introduces the surge overvoltage to the ground to protecting the electrical equipment. 5. Easy Installation: This product adopts a 3P guide rail installation, which is very simple to install. Standard 35MM rail installation, used in conjunction with distribution box circuit breakers. Specification: Item Type: Surge Protective Device Model: YQSP-40PV Material: Flame Retardant PC Maximum Continuous Working Voltage Ucpv: 1000V DC Nominal Discharge Current In: 20KA (8/20μS) Maximum Discharge Current Imax: 40KA (8/20μS) Voltage Protection Level Up: ≤ 3.8KV Protection Level: IP20 Indication: Green for normal, red for fault Installation: 35mm standard guide rail. Working Temperature: -40 ℃~80 ℃, humidity: ≤ 90%, at an average of 25 ℃. . Package List: 1 x Surge Protective Device