1. Ukutshaja okukhuselekileyo nokukhawulezayo ngaphandle kokonakalisa ibhetri
2. Ngaphezulu kwe-80% intlawulo epheleleyo kwimizuzu engama-40
3. Ukhuseleko oluninzi, ukugqithiswa kwe-overvoltage, i-undervoltage, i-overcurrent, i-short circuit, i-overtemperature, njl.
4. Inkxaso QC3.0,QC2.0


