I have just got a like-for-like replacement ACK42 (230V) window actuator for the conservatory to replace the faulty one. The old one is wired to the control unit by insulated (red) crimps. The wiring is inside 25 x
16mm pvc mini-trunking, and the actuator is self-supporting, being screwed to a bracket.I do not have an any experience of crimping. The example ratchet crimper mentioned in the DIYWiki is OOS at TLC. Other cheapish ratchet crimpers from Screwfix, Toolstation, etc often seem to get poor reviews when used with thinner wire and red crimps. I don't really want to lay out on a pro-grade crimper for this one-off job, so wondered what other options are available. It seems to me it comes down to connector blocks or soldering, either of which I would be happy to do. But what about using shrinkfit insulation after making the connection? It will definitely be needed for a soldered connection, but is it required for a connector block?