Some of the MEM fuseboxes with ceramic interior had a metal tab which was pressed down by the outer cover, with the cover removed it was not possible to switch on, unless you deliberately held down the tab and moved the switch at the same time.
... except that, in the absence of upstream RCD protection, there is presumably a need for RCD protection in both the garage and shed, and a mini-CU is probably as good (and maybe even cheaper) way of achieving that as anything else.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local