Bussmann 20A Fusetron FNM Cartridge General Purpose Time Delay Cartridge Fuse (2-Pack)

Fusetron time delay general-purpose FNM cartridge fuse. Suitable for circuits with high inrush current such as: spas, pool pumps, and other commercial equipment. Time delay feature allows the initial start up surge for typical motors to pass, but opens prior to burnout when longer dangerous overloads are present. UL (Underwriter's Laboratories) listed.