NH fuse insert 3NA COM with measurement function, size 2, 315 A, 400 V, operating class gG with electronic module, live grip sleeves, and front indicator. Please observe radio approval! Country list: see certificates. NH fuse insert SENTRON 3NA3 for selective line and system protection. The NH fuse system provides effective protection for people, devices, and systems by ensuring safe disconnection in the event of overload and short circuit. The 3NA COM fuses enable high network transparency through current measurement and wireless communication, making them ideally suited for the digitalization of power grids. The standardized design allows for easy and cost-effective retrofitting in existing systems. NH fuse inserts are available from 2 A to 1250 A and in sizes 000, 00, 0, 1, 2, 3, 4, and 4a. The variants with communication and measurement function in size 2 range from 80 A to 315 A. SENTRON protective circuit breakers - a safe choice. Now even smarter.