Bussmann FNM-3 is a low-voltage, time-delay fuse designed for protecting control circuits, transformers, and motors against overloads and short circuits. It features a 3A current rating and a 250V voltage rating, with a compact ferrule non-rejection design measuring 0.39 in x 1.44 in x 0.39 in and a 0.41 in diameter. The fuse is constructed for high interrupting capacity, certified to UL-248-14, CSA Class 1422-01, and CE standards, with an AIC rating of 100kA at 250V. Its typical applications include industrial control panels, HVAC systems, and power distribution equipment where reliable, time-delay protection is required.