Siemens Sentron 3NW7 Retaining Holder. Tube fuses/ Cartridge fuses (Electrical Engineering / Components for panels and boxes / Fuses and accessories). Principal data: size 3P mm, current rating 200 A. Supplied under manufacturer part number 3NW7431-7HG, EAN 4001869523224, HS code 8536.90, country of origin Germany.