| Magnitudo | Tensio Aestimata | Capacitas frangendi aestimata | Currens nominalis (A) | Factor potentiae Cosφ | |
| Fusus | Nexus fusibilis | ||||
| 0°C | 500V 660V | 120kA 50kA | centum | VI, X, XVI, XX, XXV, XXXII, XL, L, LXIII, LXXX, C | 0.1~0.2 |
| 00 | CLX | VI, X, XVI, XX, XXV, XXXII, XL, L, LXIII, LXXX, C, CXXV, CLX | |||
| 0 | CLX | XVI, XX, XXV, XXXII, XL, L, LXIII, LXXX, C, CXXV, CLX | |||
| 1 | 250 | LXXX, C, CXXV, CLX, CC, CCL | |||
| 2 | quadringenti | 125, 160, 200, 250, 315, 400 | |||
| 3 | DCXXX | CCCXV, CD, D, DCXXX | |||
| 4 | 500V | 100kA | mille | Octingenti, mille | |
| 4a | 1200 | 1000, 1250 | |||
| Magnitudo | A | B | C | D | E | F | G |
| 0°C | 78.5 | 49 | 21 | 40.5 | 6 | 42.5 | 15 |
| 0 | 78.5 | 49 | 29 | 45 | 6 | 56.5 | 15 |
| 0 | 126 | 68 | 29 | 45 | 6 | 56.5 | 15 |
| 1 | 135 | 68 | 48 | 49 | 6 | 62 | 20 |
| 2 | CL | 68 | 56 | 59 | 6 | 70 | 25 |
| 3 | CL | 68 | 67 | 68 | 6 | 85 | 32 |
| 4 | ducenti | 90 | 97 | centum | 8 | 113 | 50 |
| 4A | ducenti | 90 | 97 | centum | 8 | 113 | 50 |
| Magnitudo | A | B | C | D | E | F | G | H | K | M |
| 00 | CXX | 61 | centum | 7.5 | 25 | - | 90 | 30 | 24 | 8 |
| 1 | ducenti | 80 | CLXXV | 10.5 | 25 | 30 | 142 | 58 | 30 | 10 |
| 2 | 224 | 90 | ducenti | 10.5 | 25 | 30 | CLX | 62 | 36.5 | 10 |
| 3 | 250 | 105 | 210 | 10.5 | 25 | 30 | CLX | 62 | 36.5 | 12 |
| 4 | 304 | 145 | 260 | 13 | 30 | 45 | - | 96 | 44 | 12 |