LYD2-D系列电涌保护器

LYD2-D系列电涌保护器（简称SPD）适用于交流50/60Hz，380V及以下的TN-S、TN-C-S、TT、IT等供电系统，可作为LPZ1、LPZ2与LPZ3区界面处的等电位连接，其设计依据符合IEC61643-1、GB18802.1，外壳设计安装在35mm电气导轨上，该产品内置失效脱离装置。当电涌保护器因过流过热，击穿失效时，失效脱离装置能自动的将其从电网上脱离，同时可视告警指示绿色（正常）、红色（故障），模块可在有工作电压情况下更换。
LYD2-D series surge protective (in short:SPD,alias:surge protector,surge arrester)is suitable for TN-S、TN-CS、TT、IT etc.power supply system of AC 50/60Hz,=380V,installed on the joint of LPZ1 or LPZ 2 and LPZ3,it 'sdesigned accordingto IEC61643-1、GB18802.1,it adopts 35mm stan dard rail,there is a failure release mounted on the mod ule of surge protective device.When the SPD fails in breakdown for over-heat and over-current,the failurerelease will help electric device separate from the power system and give the indication signal,green means normal,red means abnormal,it 's also could be replaced for the module when has operating voltage.