Further information for Ferraz Shawmut E095431 - Mersen medium slow 5x20 SA 0 25A 400V fuse link
Device protection fuses (G-fuse) SA 5x20mm medium time-lag 0.04A to 3.15A AC250V, consist of a ceramic tube with metal end caps, between which the metal conductor and an extinguishing agent filling are located.