1,MAIN PURPOSE: Surge protector can provide overload protection and short circuit protection for DC circuits or equipment, convenient and practical. 2,GOOD PERFORMANCE: The surge protective device has good on off effect, which has no stuck situation, with good contact, stable and reliable performance. 3,SAFE OPERATION: The protector shell is made of PC material, which is flame retardant and fireproof, wear resistant and durable, and has strong safety. 4,BREAKING CAPACITY: The surge arrester device has a high breaking capacity up to 4500A with a maximum voltage of 400V, for a wide range of applications. 5,EASY INSTALLATION: The surge protector has a compact structure, is easy to install and disassemble, takes up little space, and is suitable for home use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.