RCD ndi mawu ambiri omwe amagwiritsidwa ntchito m'malamulo ndi manambala ochita, kuphatikiza RCCB, RCBO, ndi CBR. Ndiye kuti, zida zomwe zimapereka zotsalira zazotsalira "zomwe zilipo, pomwe zotsalira zomwe zafotokozedwazo zimaposa, chipangizocho chimazimitsidwa, amazindikira zotsalira zamakono komanso zamagetsi. Mosiyana ndi RCM (yokhazikika yaposachedwa) yomwe imagwiritsidwa ntchito "yodziwika" yaposachedwa koma osapereka chitetezo chaposachedwa, onani zolemba zomwe zalembedwa kumapeto kwa 722.101.101
RCCB, RCBO, ndi CBR imapereka chitetezo pochotsa magetsi kuti mupewe zolakwa zaposachedwa zomwe zimapangitsa zida zomwe zimapangitsa kuti ziwalo zisayende kapena kutsekeredwa pamanja.
RCCB (En6008-1) iyenera kugwiritsidwa ntchito limodzi ndi olpd, ndiye kuti, fuse ndi / kapena MCB iyenera kugwiritsidwa ntchito kuteteza ku zochulukirapo.
RCBB ndi RCBO ili ndi mawonekedwe okhazikika ndipo adapangidwa kuti abwezeredwe ndi anthu wamba pankhani ya cholakwa.
CBB (En609472727-2) yopangidwa ndi zotsalira zotsalira pakalipano, zoyenera kugwiritsa ntchito ma Paunivel / 100a.
CBB ikhoza kukhala ndi mawonekedwe osinthika ndipo sangabwezeredwe ndi anthu wamba pankhani ya cholakwa.
Article 722.531.3.1017 ikunenanso za En62423; Zowonjezera zowonjezera zomwe zimagwiritsidwa ntchito ku RCCB, RCBO ndi CBR ya kuzindikira F kapena otsalira pano.
RDC-DD (IEC62955) imayimira chotsalira cha DC Internative of DC *; Nthawi zambiri ndi zida zingapo zopangidwa kuti zizindikire bwino za DC zomwe zili patsamba 3, ndipo zimathandizira kugwiritsa ntchito mtundu wa mtundu wa ma RCD.
The RDC-Dd Vorive Iec 62955 imafotokoza mafomu awiri oyamba, RDC-MD ndi RDC-PD. Kuzindikira mitundu yosiyanasiyana iwonetsetsa kuti simudzagula zinthu zomwe sizingagwiritsidwe ntchito.
RDC-PD (chipangizo choteteza) chimagwirizana 6 zowoneka bwino za DC ndi 30 ma a kapena f rentidisial kutetezedwa ndi zinthu zomwezo. Kulumikizana kwa RDC-PD kumangokhala kwakanthawi kokhala ndi vuto lotsalira.