GCK mhando yakaderera-voltage dhirowa switchgear inoshandiswa mumagetsi emagetsi, substations, petrochemical, metallurgical rolling, light industrial textile uye mamwe mafekitori nemabhizimusi emigodhi nenzvimbo dzekugara, zvivakwa zvepamusoro uye dzimwe nzvimbo, se AC 50 ~ 60Hz, yakayerwa kushanda voltage. AC 660V uye pasi pesimba remagetsi emagetsi ekugovera midziyo yekushandura simba, kugovera uye kutonga.