RCD ndi mawu ogwiritsidwa ntchito m'malamulo ndi malamulo oyendetsera ntchito, kuphatikizapo RCCB, RCBO, ndi CBR. Izi zikutanthauza kuti, zipangizo zomwe zimapereka "chitetezo" cha magetsi otsala, ndiko kuti, pamene magetsi otsala apitirira malire odziwika kapena chipangizocho chizimitsidwa pamanja, zimazindikira magetsi otsala ndipo "zimalekanitsa" dera pogwiritsa ntchito magetsi. Mosiyana ndi RCM (Residual Current Monitor) yomwe imagwiritsidwa ntchito "kuzindikira" magetsi otsala koma sipereka chitetezo cha magetsi otsala - onani zolemba za Article 411.1 ndi miyezo ya malonda yomwe yatchulidwa kumapeto kwa Article 722.531.3.101.
RCCB, RCBO, ndi CBR zimateteza magetsi mwa kuwalekanitsa kuti apewe mavuto otsala omwe amachititsa kuti zida zigwe kapena kuzimitsa pamanja.
RCCB (EN6008-1) iyenera kugwiritsidwa ntchito limodzi ndi OLPD yosiyana, ndiko kuti, fuse ndi/kapena MCB ziyenera kugwiritsidwa ntchito kuti zitetezedwe ku overcurrent.
RCCB ndi RCBO zili ndi makhalidwe osasinthika ndipo zapangidwa kuti zikonzedwenso ndi anthu wamba ngati pakhala vuto.
CBR (EN60947-2) Circuit breaker yokhala ndi chitetezo cha ma current otsala mkati, yoyenera kugwiritsa ntchito ma current apamwamba >100A.
CBR ikhoza kukhala ndi mawonekedwe osinthika ndipo singakonzedwenso ndi anthu wamba ngati pakhala vuto.
Nkhani 722.531.3.101 ikunenanso za EN62423; zofunikira zina za kapangidwe zomwe zimagwiritsidwa ntchito pa RCCB, RCBO ndi CBR pozindikira mphamvu yotsalira ya F kapena B.
RDC-DD (IEC62955) imayimira chipangizo chotsalira cha DC current detection device*; mawu wamba a zida zingapo zomwe zimapangidwa kuti zizindikire DC fault current yosalala mu ntchito zochapira mu Mode 3, ndipo zimathandizira kugwiritsa ntchito Type A kapena Type F RCDs mu circuit.
Muyezo wa RDC-DD wa IEC 62955 umatchula mitundu iwiri yoyambira, RDC-MD ndi RDC-PD. Kumvetsetsa mitundu yosiyanasiyana kudzaonetsetsa kuti simudzagula zinthu zomwe sizingagwiritsidwe ntchito.
RDC-PD (chipangizo choteteza) chimaphatikiza kuzindikira kwa DC kosalala kwa 6 mA ndi chitetezo cha 30 mA A kapena F chotsalira cha current mu chipangizo chomwecho. Kulumikizana kwa RDC-PD kumachotsedwa pamagetsi ngati pali vuto la current yotsala.