Features 1、10/350uS Waveform: SPD series graphite gap type surge protector belongs to the first class protection device with 10/350uS waveform. Designed according to IEC and GB standards 2、First Level Surge Protection: Applied to the first level surge protection of power supply for equipment systems in areas with high risk of thunder strikes 3、For Single and Three Phase Lines: Can prevent various surge currents including direct thunder strikes, can be applied to single and three phase power supply lines through different combinations of numbers 4、Standard 35mm Guide Rail Installation: Modular design, standard 35mm guide rail type installation method, installed in the building's main power distribution cabinet(box) and outdoor 5、High Thunder Current Discharge Capability: Possess high thunder current discharge capability, no freewheeling, maximum impulse current(10/350us) reach limp=15KA, maximum discharge current(8/20us) reach Imaximum=100KA Specification Item Type: Surge Protective Devices Product Model: BEM-LYI15 Product Specifications: 4P15KA Insulation Resistance: >100Mohm Impulse Current (10/350us): Peak Current: 15KA; Amount of Charge: 7.5AS; Energy: 56.25KJ/Q Maximum Discharge Current（8/20us）: 100KA Nominal Discharge Current（8/20us）: 15KA Response Time: ≤100nS Ambient Temperature: -40℃~+80℃ Shell Material: Flame retardant nylon Protection Level: IP20 Equipped with Front Fuse: 125A Altitude: Not more than 2000meter Relative Humidity: Not more than 90%(25℃) Package List 1 x Surge Protective Devices