Le switshi yokwahlulahlula ifanelekile ukusetyenziswa kwisekethe ye-AC 50Hz, i-voltage elinganisiweyo ukuya kuthi ga kwi-400V,
kunye nomlinganiselo wamandla ongaphantsi ukuya kuthi ga kwi-100A. Ziyimpawu zokusetyenziswa kwe-prescription ecacileyo ye-
imeko yayo yokwaphuka, isetyenziswa ixesha elide, kwaye isetyenziselwa umbane ongasebenzi rhoqo xa ilayisha.
Iyahambelana nemigangatho ye-IEC60947-3, GBI4048,3njl.