Littelfuse POWR-SAFE Dead Front holders provide optimum protection to personnel. Indicating and non-indicating versions are available in 1,2,3, or 4 poles for Midget fuses. Features: Meets Dead Front requirements, Mountable on 35mm Din Rail, Blown fuse identification (Indicating versions only), Easy installation and removal of fuses. No special fuse pullers or tools required. UL Listed for branch circuit protection (Class CC versions only), Compact design, Ventilated design for cooler operation, Indicates above 80 volts (ID versions only).