Feature:1. High end high definition glass, fine polishing. Guide rail installation.2. Internal components, precision chip, precision strong electrical conductivity.3. Plug in module setting, easy maintenance. Electrical engineering applications.4. Three phase four wire connection and level 2 protection, reliable in use.5. 4P Main number of poles. 420V Rated voltage and 20KA rated current.Specification:Condition: 100% Brand NewItem Type: Surge Protector Material: Nylon PA66 flame retardant materialColor: WhiteRated Current: 20KASetting Current: 40KAInstallation Method: Guide rail installationArc Extinguishing Medium: Magnetic blowing typeRated Voltage: 420VMain Number of Poles: 4PScope of Application: Electrical engineeringConnection: Three phase four wireType of Protection: Level 2Response Time: 0.2 (s).Package List:1 x Surge Protector