dennis@home wrote:

I want to fit some GE minitrips to a CU that has wired fuses in it.
The trips just plug into the existing slots.
However they are too deep to fit the cover.
Is the cover a requirement or even necessary once the minitrips are in
place?

The lack of a cover is unlikely to be a problem as long as they are
unlikely to be physically abused in their present location.

These plug in MCB often only have a maximum breaking capacity of 3kA
(less than the 6kA or better typical of modern MCBs), but one could
argue that is a non issue since BS3036 semi-enclosed fuses often have an
even lower breaking capacity. Since you are making the change it would
be worth checking your supply impedance to make sure that 3kA is
adequate (if its not, then your existing fuses would almost certainly be
inadequate as well).

--
Cheers,

John.

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