NH fuse insert 3NA COM with measurement function, size 2, 200A, Un 400V, operating class gG with electronic module, live grip handles, and front indicator. Please note the 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 through safe disconnection in case of overload and short circuit. The 3NA COM fuses enable high network transparency through current measurement and wireless communication, making them well-suited for the digitalization of power grids. The standardized design allows for easy and cost-effective retrofitting in existing systems. The 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 functions in size 2 range from 80 A to 315 A. SENTRON protective circuit breakers - a safe choice. Now even smarter.