IEC indoor vacuum circuit breaker VD4
Medium Voltage circuit breakers with mechanical actuator (spring mechanism) for primary distribution up to 46 kV, 4000 A, 63 kA.
VD4 circuit breakers are used in electrical distribution for control and protection of cables, overhead lines, transformer and distribution substations, motors, transformers, generators and capacitor banks.
Up to 4000 A in switchgear with forced ventilation
- Sealed-for-life poles
- Operation under different climatic conditions
- Stored energy operating mechanism with anti-pumping device supplied as standard
- Fixed and withdrawable versions with front operating mechanism
- Circuit-breaker racking-in and racking-out with the door closed