Littelfuse Ul Class K5 "one-time" Fuse

fuses, General Purpose, Brand Or Series: Class K, One Time, Terminal Type: Cartridge, Voltage Rating: 600 Vac/600 Vdc, Current Rating: 4 Amp, Interrupting Rating: 50000 Amp Vac Rms Symmetrical, Dimensions: 13/16 Diameter X 5 Length Inch, Features: Low Cos