Xakamaynta wareegga wareegga dhulka (RCD) N7 III waa mid waafaqsan heerarka VDE
0664, CEE27 iyo BS 4293. Waxay isla markiiba jari kartaa wareegga qaladka munaasabadda
khatarta shoogga ama daadinta dhulka ee khadka jirridda. Markaa way ku habboon tahay in laga fogaado khatarta naxdinta leh
iyo dabka uu keeno daadinta dhulka.N7 III RCD waxay inta badan ku haboon tahay isticmaalka dhirta kala duwan
shirkadaha, dhismayaasha, dhismayaasha, ganacsiga, guryaha martida iyo qoysaska. Waxaa loo isticmaali karaa gudaha
wareegyada ilaa hal weji 230/240V, saddex waji 400/415V, 50 ama 60Hz.