1Application: Protect electric system and on-loading electrical appliances from thunder and instantaneous over-voltage. 2Flame retardant shell, fire proof, safe to use. 3Removable assembly, easy to plug and unplug. 4DIN rail mount, simple operation. 5Adopt copper components for better conductivity performance.Features:Application: Protect electric system and on-loading electrical appliances from thunder and instantaneous over-voltage. Flame retardant shell, fire proof, safe to use. Removable assembly, easy to plug and unplug. DIN rail mount, simple operation. Adopt copper components for better conductivity performance.Specification:Power supply voltage: 220V/385V-50/60Hz Maximum continuous operating voltage: 275/385V Insulation resistance: >1000M Current peak: 25KA Charge amount: 12.5AS Energy: 156.25KJ/Q Nominal discharge current (8/25us): 25KA Maximum discharge current (8/20us): 150KA Voltage protection level: 1.8 Response time: 100ns Working temperature: -40~80 Housing material: Flame Retardant Nylon Protection level: IP20 With pre-fuse: 125A Cross-sectional area of the connecting conductor: 6-35mm2