Metal cased fusebox with cartridge fuses and a single MCB.
The front has the 'Henley' logo on the lower left corner.
The main switch is accessible through the cover, which is held closed by a small spring tab on the left side.
In this example, only one hole on the right was used, which was for the incoming supply wires.
All of the circuit wiring entered through the large round hole, which is fitted with a rubber grommet.
The lid has a paper label with fuse replacement instructions.
Circuit 1 is a 5A MCB, the others are cartridge fuses rated 30A, 15A and 30A.
Circuits 5 and 6 are not used, and have blank plates fitted.
The round hole below the circuit devices is storage for spare fuses.
2 is 'I Heat' with a 30A fuse, 3 is 'Ring Main' with a 15A fuse, and 4 is 'Cooker' with a 30A fuse.
It is likely 2 and 3 are transposed, since 15A is a common rating for an immersion heater, and ring circuits would have a 30A fuse.
These are similar in design to the larger Henley cutout fuse holders.
The 15A and 30A types are physically different sizes to prevent them being installed in the wrong position.
The neutral bar can be seen to the right of the switch.
The neutral bar for outgoing circuits can be seen behind and to the right of the switch.
The second picture shows the neutral bar and support plate folded out, and the back of the switch mounting plate.
The loose plate behind the main switch holds the neutral bar, and another insulated plate fixes behind this to prevent the neutral bar shorting onto the metal case.
The MCB has a large fully exposed terminal on the top, and has a single screw with a wire clamp.
This design prevents any additional MCBs being fitted, or changing the MCB for a fuse.
The single earth bolt was located in the lower right corner, where the loose screws are.
The round storage compartment for spare fuses is a separate plastic moulding.
The panel is secured with two screws.
Although the actual process of replacing the fuse is described in detail, it does not indicate how the fuse holder should be removed from the fusebox, and neither does it state to switch the power off first.