"It took a couple of minutes to install and gives confidence that the circuit will trip if anyone cuts the lawnmower cable or does something equally stupid. Wylex kit always works so no need to check performance. It is right that the cover on the consumer unit no longer fits; Wylex would have plenty of customers if they supplied a deeper replacement cover. The specification is wrong about the weight; more like 80 g rather than 80 kg."
"I thought about replacing the whole consumer unit, but this was a much easier solution. 5 minutes to replace all 6 old fashioned fuses and no more grovelling around in the dark to find that fuse wire..."
"Low cost easy retro fit MCB for older style Consumer Unit. Remember that the fuse cover will not fit once these have been replaced due to the increased size of the MCB compared to the rewireable fuse carrier."