Another example of this metal cased fusebox with four ceramic fuses.
Substantially similar to the other one
The switch recess is almost rectangular, compared with oval on the other one. The cover can only be removed when the switch is off.
The front cover has the 'MEM' logo in red as a separate label, and seven horizontal lines to the right of the switch.
The fuses are two 30A and two 5A. The fuse carriers are physically different sizes to prevent them being inserted in the wrong place.
Incoming supply wires connect to the two terminals bottom right, and individual circuits connect to the smaller terminals at the top and bottom of the four fuses.
Circuit neutrals connect to the terminal strip above and to the right of the main switch.
The switch is interlocked, to prevent the cover being removed while it is on, and preventing the switch being moved to on when the cover is missing.
The brown coloured pieces are the cardboard covers which shield the main switch terminals.
The brown sheet fits behind the ceramic inner section, to insulate the metal parts on the back from the metal casing.