178-1000, Mersen, Mersen 20A Slotted Tag Fuse, A1, 250 V dc, 550V ac, 44.5mm, Brand Mersen, Current Rating 20A, Fuse Size A1, Voltage Rating 250 V dc, 550V ac, Fuse Standard BS 88, IEC 60269 Mersen 20A Slotted Tag Fuse, A1, 250 V dc, 550V ac, 44.5mm