Product DescriptionMersen TRS40R 600V 40A 5 0.5X1 1/16 Time Delay Fuse, 10-PackFrom the ManufacturerMersen TRS40R 600V 40A 5 1/2X1 1/16 Td, UL Power Fuse, Class Rk5, Time Delay Characteristics, 600 Vac/300 Vdc, 40 Ampere, Interrupting Rating 200 Kiloampere (Ac), 20 Kiloampere (Dc), Ferrule Terminal, Diameter 1-1/16 Inch, Length 5-1/2 Inch, Approval Ul 198L, Ul 248-12, Csa C22.2, Tri-Onic[R] Brand, Trs Model