Gamma Consumer Units IP30

Gamma Consumer Units SBE, SBM, SBI... which option should you choose?
For new installations, in full compliance with the National Rules for Electrical Installations, Fourth Edition, ET101:2008, chose a Gamma SBE Consumer Unit.
For installations without 63A meter tails protection fitted in the meter cabinet choose a Gamma SBM Consumer Unit fitted with a main MCB incomer.
For installations with 63A meter tails protection fitted in the meter cabinet choose a Gamma SBI Consumer Unit fitted with a main isolator incomer.