I recently got a bunch of Omron P2RF-05-S relay sockets, and they have push-in connectors for the wiring connections. I have ferrules (the ones with the little plastic shield on the back) for the connections, as you'd expect for a DIN rail component, but even a 14 gauge ferrule doesn't fit into the connectors. The little side ports where you're supposed to put a small screwdriver to release the connections for insertion and removal don't seem to open the springy parts enough to get even an 18 gauge ferrule all the way in. Once you get the wires in they immediately pop out. It seems like the connectors are actually meant for inserting bare wires, is that really the answer? Does anyone have experience with this particular style of push connection? It feels like I'm just not doing something right here. The push-ins do hold pretty well to bare stranded wire and their documentation shows that it's good for use with stranded, but it feels wrong that ferrules don't seem to work.
You have to lift the spring before inserting the wire.
Insert a flat screwdriver in the hole beside the terminal and you will see movement in the spring inside the terminal
I still couldn’t get the ferrules to stay even when doing that.