R7-125 letoto la lefatše leakage circuit breaker e sebelisoa haholo bakeng sa AC 50 Hz, e lekantsoeng motlakase
230 / 400V, e lekantsoeng 6A ea morao-rao ho 63A, e nang le ts'oaetso ea motlakase o lutlang, mosebetsi o fetang o fetang, ts'ireletso ea potoloho e khuts'oane, jj. Hape e ka eketsa ts'ebetso ea ts'ireletso ea overvoltage ho latela litlhoko tsa bareki; E sebelisoa haholo ho aha mabone le ts'ireletso ea sistimi ea kabo ea motlakase. E ka eketseha tlasa motlakase, ts'ebeliso ea ts'ireletso ea motlakase ho latela litlhoko tsa mosebelisi; Sehlahisoa sena se latela standard IEC61009-1 le GB16917.7.