Most of our switch fuses come with standard BS88 gG 415VACfuses with 80kA fault ratings. Where required we can also supply mG motor rated fuses to be fitted into AC-23 switch fuses, please note however the device being selected should always be chosen based on the upper motor rating of the fuse, i.e. a 100A/125A motor rated fuse should be fitted into a 125A switch fuse rather than a 100A switch fuse to better protect the switchgear.