HDB-M yakatevedzana 3 danda rekugovera bhokisi rinoiswa kune terminal kudzivirira kugovera bhodhi, iyo huru switch ndeye 100A-2P100A-3P disconnector switch, iyo bazi switch idiki diki redunhu breaker. iyo SME-100A yekuvhenekesa kugovera bhodhi ine basa rekunonoka uye nekukasira kudzivirira kuwandisa.