Product Information for Bussmann 100LET Bussmann British Standard Fuses, LET Series Item# 100LET - FUSE, 100A, 240VAC, SEMICONDUCTOR BS88: 4, IEC269-4, UL RECOGNIZED LET Series Information 6~ 900 Amps 240VAC, 150VDC For Semiconductor Protection Center Bolted IEC, BS88 Approvals LET Series HRC fuses with bolted connections are for use in industrial and commercial installations and may be fitted in fuse units or fuse gear, two hole fixing. The fuse links comply with the revised standard BS88 part2 and IEC60269 part 2.