With built-in metering box on the right-hand side - independent access with a diversified lock (standard triangular lockable version). Suitable for direct mounting of electronic meters: max n ° 1 integrated single-phase measuring group, GMI-GMY type; max n ° 1 single phase for powers up to 10Kw GEM-GISM type, fixing with n. 1 base T5 A2 (serial number 286103); max n ° 1 three-phase for powers up to 16.5Kw type GET2A, up to 30Kw type GIST, fixing with n ° 1 base T5 A4 (Serial number 286142).