Features 【Beautiful Workmanship】Surge protection devices housing is made of flame retardant material, flame retardant, durable and effective to use, minimizing accidents. 【Easy to Use】Simple structure, stable performance, removable assembly, easy to plug and unplug, easy to use. 【DIN-RAIL INSTALLATION】Using copper accessory, DIN rail installation, easy to operate, better conductivity performance. 【Surge Arrester Device Parameters】: Rated Voltage: 220V; Model: 4P 40kA; Uc: ~420V; Number of Poles: 4; TOP: UP<2.0KV 【Application】Surge protection devices are used to protect electrical systems and electrical appliances under charge from thunder and instantaneous surges. Features: 1.The housing of surge protection devices is made of flame retardant material, flame retardant, durable and efficient to use, minimizing accidents. 2. Simple structure, stable performance, removable assembly, easy to plug and unplug, easy to use. 3. Using copper accessories, DIN-rail installation, easy to use, better conductivity performance. 4. Surge protection devices are used to protect electrical systems and electrical appliances under load from thunder and instantaneous surges. Features: Item Type:Surge Protection Devices Material: plastic. Rated voltage: 220V Model: 4P 40kA Uc: ~420V Number of poles: 4 HIGH: HIGH<2.0KV Size: as shown. Notes: Due to the different monitor and light effects, the actual colour of the item may be slightly different from the colour shown in the pictures. Thanks! Please allow for slight deviations in size due to manual measurement. Package contents: 1 x Domestic surge protector. Tips: This product only applies to AC 420V 40KA. Package List