Features 【Safe to Use】Flame retardant shell, fire proof, safe to use. 【Easy To Plug and Unplug】Removable assembly, easy to plug and unplug. 【Better Conductivity Performance】Adopt copper accessory for better conductivity performance. 【Simple Operation】DIN rail installation, simple operation. 【Application】Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage. Specification: Condition: 100% Brand New Item Type: Protector Material: Plastic Rated voltage: 220V Model: 4P 40kA Uc: ~420V Application: Mounting electrical equipment to protect electrical systems and thunder and transient overvoltages Number of poles: 4 UP: UP<2.0KV Package list: 1 x House Surge Protector Note: This product only applies to AC 420V 40KA Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List