RS PRO 50A British Standard Fuse, A3, 550V ac, 73.5mm

RS PRO 50 A British Standard Fuse, A3, 550 V AC, 73.5 mm

This 50 A fuse from RS PRO is designed to protect your general-purpose electrical equipment from power surges and short circuits. Its high rupture capacity (HRC) prevents both high and low fault currents from damaging electrical circuits, providing enhanced power protection.


This fuse comes fitted with brackets on either end, so it's simple and fast to bolt it to a fuse holder. It's long-lasting and won't easily deteriorate over time, meaning that you won't have worry about frequently changing the fuses in your equipment. It will also make your electrical systems more reliable, as it reacts quickly if a fault occurs.


You'll commonly find this type of fuse used for devices such as car wiring circuits, motors and transformers. It meets the Association of Short-circuit Testing Authorities (ASTA) 20 quality and safety standards for low-voltage fuses.

Features and Benefits

• gG application category


• Body dimensions of 21 (diameter) x 54.5 (height) x 54.5 mm (length)


• Current rating of 50 A


• Fixing centres of 73.5 mm


• Fuse dimensions of 21 x 87 mm


• A3 fuse size


• British Standard (BS) 88, International Electrotechncial Commission (IEC) 269 fuse standard


• High rupture capacity


• Overall length of 87 mm


• Bolted tag type


• Tag width of 12.7 mm


• Voltage rating of 550 V AC

RS Pro Datasheet