Feature:1. Using highend highdefinition glass, after fine grinding and polishing2. The internal components have accurate chips, precise accuracy, strong conductivity and better thunder protection.3. With strict quality control and quality assurance, high safety factor, can be used with peace of mind4. Using high‑quality materials, strong and durable, has a long service life5. Small size, easy to carry and store, convenient to use and with good performanceSpecification:Item Type: Surge Protection DeviceRated Current: 20kaSetting Current: 40kaInstallation Method: Rail installationArc Extinguishing Medium: Magnetic blowingRated Voltage: 420VNumber of Main Contacts: 2PScope of Application: ElectricalWiring Method: 3-phase 4-wireProtection Type: Level 2Response Time: 0.2 (s).Package List:1 x Surge Protection Device