Bussmann ABC-20 Tron ABC Non-Indicating Fast Acting Fuse, 250 Vac/125 Vdc, 20 A, Ceramic/Glass Fast-acting, ceramic tube Optional axial leads available 1/4-Inch x 1-1/4-Inch (6.4 x 31.7mm) physical size Ceramic tube, nickel-plated brass end cap construction UL Listed product meets standard 248-14