Nooca 4P RCBO AC waa 4-tiir wareeg ah oo isku dara ilaalinta hadda jirta iyo hawlaha ilaalinta xad dhaafka ah, gaar ahaan loogu talagalay beddelka wareegyada hadda (AC). Waxa ay si toos ah u jari kartaa korontada marka hadda hadhaaga ah (ie, leakage current) laga helo wareegga si looga hortago dabka korontada iyo shilalka shilalka korantada ee shakhsi ahaaneed. Isla mar ahaantaana, waxay sidoo kale leedahay shaqo ilaalin xad dhaaf ah oo si toos ah u jari karta korontada haddii ay dhacdo culeys xad dhaaf ah ama wareegga gaaban ee wareegga si loo ilaaliyo badbaadada wareegga iyo qalabka.
1p + n elektronic Nooca Elektronis Nooc gaar ah oo ka mid ah jabinta wareegga ee korantada oo lagu ogaanayo oo loo gooyo haraaga hadda jira (ka hortagga dabka korantada ee korantada iyo shilalka shoog ee shaqsiga ah. Isla mar ahaantaana, waxay sidoo kale leedahay shaqo ilaalin xad dhaaf ah, kaas oo si otomaatig ah u jari kara korantada markii wareegga uu buuxsado ama gaagaaban si loo ilaaliyo badbaadada wareegga iyo qalabka.
Nooca elektiroonigga ah ee RCBO waxay kuxiran kartaa oo jebin kartaa hadalka ugu weyn, oo si otomaatig ah u gooyaa wareegga marka hadda la joogo (daadashada hadda jira) ku dhaca wareegga korantada ee korantada, si looga hortago shoogsiga korantada ee shaqsiga ah ama shilalka dabka ee korantada. Isla mar ahaantaana, RCBO sidoo kale waxay leedahay shaqo ilaalin xad dhaaf ah, kaas oo ka goyn kara wareegga marka xad dhaafka ah ama wareegga gaagaaban uu ku dhaco wareegga si loo ilaaliyo badbaadada wareegga iyo qalabka.
Tani waa 4-ta 63A / 30Ma / 30Ma rcd ee ku kiciya habka dib-u-dejinta gudaha ee RCD, taasoo keentay in RCD ay si dhakhso leh u jareyso korantada, sidaa darteed ilaalinta amniga qalabka korantada iyo shaqaalaha.