R7-125 mndandanda padziko lapansi kutayikira dera wosweka zimagwiritsa ntchito AC 50 Hz, oveteredwa voteji.

230/400V, oveteredwa panopa 6A kuti 63A, ndi kutayikira mantha magetsi, mochulukira, yochepa dera chitetezo ntchito, etc. Komanso akhoza kuwonjezera overvoltage chitetezo ntchito malinga ndi zofuna kasitomala; Amagwiritsidwa ntchito makamaka pakuwunikira komanga ndi kuteteza njira yogawa magetsi. Itha kuwonjezereka pansi pa voteji, ntchito yoteteza voteji molingana ndi zofuna za ogwiritsa; Izi zimatengera muyezo wa IEC61009-1 ndi GB16917.7.