Cooper Bussmann 350FM 660VAC 350A NSMP High Voltage Fuse

The Cooper Bussmann 350FM NSMP high voltage fuse is a 660 VAC, 350 A device in the 350FM family. This NSMP-rated fuse is purpose-built to protect electrical circuits from overcurrent by deliberately opening the circuit during fault conditions. With a 660 VAC voltage rating and 350 A current rating, it is positioned for high-voltage protection applications where these specifications match system demands. As part of the Bussmann protection solutions lineup, it represents a compact, reliable option for safeguarding power distribution and critical loads at elevated voltages. In deployment, it functions as a sacrificial safety device that helps limit damage to conductors, transformers, and equipment by interrupting excessive current. The 350FM NSMP fuse thus supports safety and continuity in systems designed to operate at up to 660 VAC and load currents around 350 A. Its 660 VAC and 350 A ratings help confirm compatibility with high-voltage protection plans and enable proper coordination with upstream protection devices.