VD4/R are used in secondary MV distribution and in small transformer substations. They are available in fixed version with right-hand side operating mechanism. Circuit-breakers with rated voltage up to 24 kV can be fitted with current sensors and PR521 overcurrent release and can be used in unmanned substations without auxiliary power supply.
| Ratings |  |
| Rated voltage (kV) | 12 ... 24 |
| Rated currente (A) | 630 ... 1250 |
| Rated breaking capacity (kA) | 12,5 ... 25 |