Pwodwi a itilize pou pwoteksyon kont surcharge ak kous kout nan sikwi ekleraj epi pwodwi yo an akò ak estanda GB10963 ak BS3871 yo.
Kouran nominal | A) | Nimewo poto | Vòltaj nominal | Kapasite kraze |
6.10.15.20.30.40.50.60 | 1 | 120120/240 | 50005000 |
15.20.30.40 | 2 | 240/415120/240 | 30005000 |
50.60 | 3 | 240/415240/415 | 30003000 |