I-Residual Current Circuit Breaker (RCCB) sisixhobo esibalulekileyo sokhuseleko sombane esenzelwe ukukhusela abantu kunye nepropathi kumothuko wombane, iingozi zomlilo, kunye nemisinga yokuvuza. Kwiinkqubo zombane zanamhlanje, apho imithwalo yokuhlala, yorhwebo, kunye nemizi-mveliso iya isanda, ii-RCCBs zidlala indima ebalulekileyo ekuqinisekiseni ukuhanjiswa kwamandla okukhuselekileyo. Eli nqaku linika isikhokelo esibanzi sokuqonda indlela ii-RCCBs ezisebenza ngayo, kutheni zibalulekile, indlela yokukhetha imodeli efanelekileyo, iindlela zofakelo eziqhelekileyo, iingcebiso zokulondoloza, kunye nezicelo zehlabathi zangempela.