Thank you, it looks interesting. But those would require making custom pcbs and using oven to solder them. I also think that stranded wires could only be inserted with a special tool (069296700403000), which is very expensive.
Update: Maybe someone will find it useful to know that part number of those terminal blocks that you can see in my provided photo is apparently 009276004021106. By the way, seller "forgot" to mention one important detail: "Replaceability: 5 Cycles".