That's the problem with some designs of box. You couldn't check if the bussbar was actually the right side of the terminal.as the mcb was clipped in before connection. I used to use one where you could fix the mcb then pull up to check if attached. Easily done if you cannot see to bottom terminal and not able to give a little tug.
That's the problem with some designs of box. You couldn't check if the bussbar was actually the right side of the terminal.as the mcb was clipped in before connection. I used to use one where you could fix the mcb then pull up to check if attached. Easily done if you cannot see to bottom terminal and not able to give a little tug.