FNQ-10 is a Bussmann (Eaton Bussmann) time-delay fuse rated for 10 A at 500 V AC, designed for circuits with inrush currents such as motors and transformers. The midget fuse uses a fiber-tube cartridge with ferrule endcaps and is non-indicating, measuring 13/32 in diameter by 1-1/2 in long (5AG size). It features nickel-plated bronze endcaps and a 10 kAIC interrupting rating at 500 VAC, making it suitable for protection in power supplies and control circuits where brief surge currents occur. Typical applications include motor-control circuits and other loads that experience surges, where reliable protection without nuisance blowing is crucial.
