1、CIRCUIT PROTECTION: DC surge protector with built in overcurrent, overheating, temperature control and short circuit protection to ensure safe operation. 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.