I've used a few of these now, and will continue to do so because they're brilliant. It's a neat solution, the mouldings are really nice quality, I've not had any problems with terminals slipping out, and the moulding does incorporate a secondary terminal lock.

One thing to watch, and this isn't a problem with the moulding itself: don't try to cram huge numbers of wires into one terminal - use the busbar fuse terminals for what they're for.

Buy with confidence.

I was impressed with the quality of the module but more than this I really like this website: easy to use, links into the additional components you will require. I suppose you would say the site is "intuitive", easy to navigate. The service is also first class!