Siemens Sentron 3NW7 Cylindrical fuse holder. Tube fuses/ Cartridge fuses (Electrical Engineering / Components for panels and boxes / Fuses and accessories). Principal data: size 22x58 mm, current rating 100 A. Supplied under manufacturer part number 3NW7222, EAN 4001869253312, HS code 8536.90, country of origin Slovenia.