Cooper Bussmann, 50A, A3, British Standard Fuse, gG, 550V ac. Fuse Standard: BS 88, IEC 269. Fixing Centres: 73.5mm. Tag Width: 12.7mm. High Rupture Capacity: Yes. Overall Length: 87mm. Body Diameter: 21mm. Body Height: 54.5mm. MPN: BAO50