Kuteteza ndi kuwongolera mabwalo motsutsana ndi zochulukira & mabwalo amfupi pakukhazikitsa kwanyumba ndi mafakitale.
Ma HP-MCB akupezeka ndi mphamvu yosweka ya 10 kA&6kA mpaka IEC60898.
Ma MCB amasinthidwa kukhala ma MCB 40 atha kuperekedwa ndi ma calibration 50 ozungulira.
Kuyitanitsa kuyika kumapeto kwa mndandanda wa nambala ya MCB: -HPxxxxH.