A plastic case fusebox with two cartridge fuses. Both fuses rated 15A.
This is how the box appeared when installed. There should be a transparent plastic cover over the two fuses - this was missing.
The two fuses are identical, both 15A. The holders just pull out of the main unit and contain a replaceable cartridge fuse.
The front cover is fixed with a single screw, located between the fuses and the main switch.
The cutout section on the lower edge is where circuit wires entered.
The plastic shields are fixed with a single screw. The main feed wires connect just above the 'on/off' label. Circuit wires connect to the top of each fuseway, with neutral at the bottom right (2 terminals) and earth at the top right (5 terminals).
The earth bar has extra terminals so that main or supplementary equipotential bonding wires can be connected.