Fis ɗin HRC mai ƙarancin ƙarfin lantarki na NT yana da sauƙin nauyi, ƙarami ne, ƙarancin wutar lantarki, asara kuma yana da ƙarfin karyewa. An yi amfani da wannan samfurin sosai wajen kare shigarwar wutar lantarki daga wuce gona da iri da kuma kariyar da'ira.
Wannan samfurin ya dace da ka'idojin IEC 269 tare da duk ƙimar da aka samu a matakin ci gaba na duniya.
Hanyoyin haɗin fis na masana'antu don aikace-aikace iri-iri.
shiryawa ta hanyar kwali na fitarwa na yau da kullun, ko kuma bisa ga buƙatar abokin ciniki
| Girman | Ƙarfin wutar lantarki mai ƙima (V) | Matsayin halin yanzu (A) | Nauyi (g) |
| NH00C | AC500/690V DC 440V | 2,4,6,10,16,20,25,32,35,40,50,63,80,100 | 145 |
| NH00 | AC500/690V DC 440V | 2,4,6,10,16,20,25,32,40,50,63,80,100,125,160 | 180 |
| NH0 | AC500/690V DC 440V | 4,6,10,16,20,25,32,40,50,63,80,100,125,160 | 250 |
| NH1 | AC500/690V DC 440V | 63,80,100,125,160,200,224,250 | 460 |
| NH2 | AC500/690V DC 440V | 80,100,125,160,200,224,250,300,315,355,400 | 680 |
| NH3 | AC500/690V DC 440V | 300,315,355,400,425,500,630 | 900 |
| NH4 | AC500/690V DC 440V | 630,800,1000,1250 | 2200 |