Probably not the best forum for this post, but I don't follow many others. For those of us who mess around with the electronics, I have just received some marketing material about a connector that would seem to be ideal to take the place of screw terminal blocks for the higher current circuits.
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www.anglia-live.com]
It claims to be good up to 9 amps, but has a low number of mating cycles (5), so suitable only for wires that you would seldom disconnect. I am not associated with that company, and have not tried the connector in question. It would avoid the fire risk associated with screw terminals working loose and becoming high resistance, and looks like it does not need ferrules (BICBW).
Dave