I was looking inside my Hager CU today and noticed that two of the MCBs have their positive terminals linked by a purpose-made copper link made of pressed sheet copper (covered by a removable white plastic insulator. Additional MCBs, added more recently, for subsequent circuits are linked by short lengths of 10 sq mm cable with red insulation. Is this OK, or should all the MCBs be linked in the same way?
Thank you.
Axel