The last place I worked used something like that, but the ones they got sucked. The problem was that there was a bad design that adapted to the different fuse sizes and would not ramp the fuses into place, so the techs would bend the contacts to let the US fuses fit so they could do unit burn-in. They would put in the Euro fuses, which would be loose and not make contact, so the European field techs would have to replace the fuse holders, which aren't available separately. Since the units weren't bought directly from the maker, the maker washed their hands of it and refused to acknowledge or fix the problem.
Maybe they are OK if used with only one fuse size, but if they are qualified on one fuse, but used in the other configuration I would check carefully and make a lifetime buy to avoid problems from the maker changing the design. I would also make the installation into a replaceable plate so that an alternate form factor could be used.
As it was there was quite a shock when the new, out of the box, fully tested, QC'd and QA'd, FDA approved design box failed to function because of the f'd up fuse holder that was badly designed.
(why does almost every electrical item seem like the mechanical design was handled by someone who took a drafting course but paid little attention?)