| Numerus exemplaris | Tensio nominalis (kV) | Currens nominalis (A) | Currentis tolerabilis brevis temporis aestimata 4s (rms) (kA) | Currentis sustinendi maximi aestimati (kA) |
| GN19-12/S400-12.5 | 12 | quadringenti | 12.5 | 31.5 |
| GN19-12/S630-20 | 12 | DCXXX | 20 | 50 |
| GN19-12S1000-31.5 | 12 | mille | 31.5 | 80 |
| GN19-12/S1250-31.5 | 12 | 1250 | 31.5 | 80 |
| GN19-12C/S400-12.5 | 12 | quadringenti | 12.5 | 31.5 |
| GN19-12C/S630-20 | 12 | DCXXX | 20 | 50 |
| GN19-12C/S1000-31.5 | 12 | mille | 31.5 | 80 |
| GN19-12C/S1250-31.5 | 12 | 1250 | 31.5 | 80 |
| Numerus exemplaris | A | B | C |
| GN19-12/400 | 490 | 436 | 4-14×24 |
| GN19-12/630 | 490 | 436 | 4-14×24 |
| GN19-12/1000/1250 | 510 | 530 | 4-18×28 |
| GN19-12C/400 | 460 | DCXXV | 4-14×24 |
| GN19-12C/630 | 460 | DCXXV | 4-14×24 |
| GN19-12C/1000/1250 | 505 | DCCXLV | 4-18×28 |