LV HRC fuse link 3NA COM with metering function with wireless communication size 2 125A Un 400V operational class gFF without electronic module non-insulated grip lugs front indicator LV HRC fuse link SENTRON 3NA3 for selective system and line protection.The LV HRC fuse system provides effective personal, equipment and line protection with reliable disconnection in the event of overload and short-circuit. The 3NA COM fuses enable high network transparency due to current measurement and wireless communication and are therefore well suited to the digitalization of power networks. The standardized design enables simple and low-cost retrofitting into existing installations.The LV HRC fuse links are available from 2 A to 1250 A in the sizes 000, 00, 0, 1, 2, 3, 4 and 4a. The versions with communication and metering function in size 2 from 80 A to 315 A.SENTRON circuit protection devices - The safe choice. Now made smarter.