| numero d'ordine | Marchiatura della modificazione
Inter
Nazionale | Nominal voltage, kW | minimum collapsing force in bending, CN | minimum collapsing force under tension, CN | leakage path length, no less than, MM | mass, kg | | 1 |
 PR-6U, T1
PR-6U, T1 | 6 | - | - | 220 | 12. 0 | | 2 |
PR-10U, T1
PR-10U, T1 | 10 | - | - | 380 | 15. 5 | | 3 |
PR-15UHL, T1
PR-15UHL, T1 | 15 | 5. 0 | 30 | 540 | 17. 5 | | 4 |
PR-20UHL, T1
PR-20UHL, T1 | 20 | 4. 0 | 30 | 770 | 23. 0 | | 5 |
PR-25UHL, T1
PR-25UHL, T1 | 25 | 3. 5 | 30 | 770 | 23. 5 | | 6 |
PR-33UHL, T1
PR-33UHL, T1 | 33 | 5. 5 | 30 | 910 | 28. 5 | | 7 |
PR-35UHL, T1
PR-35UHL, T1 | 35 | 2. 5 | 30 | 1150 | 30. 0 | |
