| Math | N7 III | N7 III | N7 III |
| Cerrynt graddedig (A) | 25 | 40 | 63 |
| Cerrynt gweithredu graddedig ar gyfer gollyngiad daear lΔn(A) | 0.03,0.1,0.3,0.5 | ||
| Cerrynt anweithredol graddedig ar gyfer gollyngiad daear lΔn(A) | 0.5 lΔn~lΔn | ||
| Foltedd Un(V) | 240(220)415(380) | ||
| Pole | 2 | 4 | |