Abstract: A fuse holder for a miniature cartridge fuselink, comprises a hollow body and a fuse carrier, formed as plastic mouldings, and two spring metal contact members engagable witih the outside of the body and having central parts which project into the cylindrical chamber of the body through slots in the body wall. The construction is such that the fuse carrier can only be inserted into the body when it is oriented in one predetermined position relative to the body and, in this position, there are barriers of insulation material between the end caps of a fuselink snapped into the fuse carrier and the potentially live electrical terminals on the body. When the fuse carrier is fully inserted into the body, it can be rotated through one half turn to engage the end caps of the fuselink with the contacts. The fuse holder prohibits a user from touching any live terminals, and the end caps of the fuselink cannot engage the contacts of the holder while the fuse carrier is being inserted into or removed from the holder.