R7-125 yakatevedzana yevhu leakage yedunhu breaker inonyanya kushandiswa kune AC 50 Hz, yakayerwa voltage.

230/400V, yakarongwa ikozvino 6A kusvika 63A, ine leakage yemagetsi kuvhunduka, kuwandisa, pfupi redunhu kudzivirira basa, etc. Uyewo anogona kuwedzera overvoltage kudzivirira basa maererano nezvinodiwa mutengi; Inonyanya kushandiswa mukuvaka chiedza uye kuchengetedzwa kwesimba rekugovera simba. Inogona kuwedzera pasi pemagetsi, pamusoro pekudzivirira kwemagetsi basa zvinoenderana nezvinodiwa nemushandisi; Ichi chigadzirwa chinoenderana neyakajairwa IEC61009-1 uye GB16917.7.