CMTB1LE-63 Ibisigisigi Byakoreshwaga Kumashanyarazi Kumashanyarazi isan nibintu byingenzi bigize sisitemu yumutekano uwo ariwo wose, bitanga uburinzi bwizewe bwo kwirinda ingaruka ziterwa n’umuriro w’umuriro n’umuriro uterwa n’amakosa y’ubutaka hamwe n’umuriro.RCBO ikoreshwa cyane cyane mubucuruzi nubucuruzi.
Ihuye nibipimo bya IEC61009-1.