Bussmann NSB 80LET Fuses

Bussmann NSB 80LET is an 80 A high‑speed BS88 cartridge fuse from Eaton’s Bussmann series, designed for protection of AC circuits rated up to 280 VAC and DC circuits up to 150 VDC. It features a 200 kA RMS interrupt rating at its rated voltage and 50 kA DC at 150 VDC, aligning with BS88 Part 4 and Class aR classifications, and is UL Recognized, IEC Rated, CE Marked, and RoHS compliant. The body is 18 mm in diameter and 55 mm in length, weighing about 32 g, making it compatible with standard 18 mm fuse holders in control panels and power distribution gear. This 80LET fuse is a fast‑acting British‑standard protection device used in industrial equipment and electrical panels where rapid clearing of overcurrent is required while maintaining reliability across BS88 mounting configurations.