IEC indoor vacuum circuit breaker VD4/R VD4/S
Reliable low-duty protection
VD4/R circuit breakers with lateral operating mechanisms can be used in all medium voltage secondary distribution systems and MV/LV transformer substations in factories, industrial workshops and in the services sector. Thanks to installation (on request) of the self-supplied PR521 overcurrent release with microprocessor, the VD4/R breakers are suitable for use in unmanned MV/LV transformer substations without auxiliary power supply.
- Medium voltage circuit breakers with lateral mechanical actuator (spring mechanism) for secondary distribution, up to 24 kV, 1250 A, 25 kA.
- The compact medium voltage vacuum circuit breaker solution for low-duty distribution
- Easy and fast to install thanks to the optional integrated solution: onboard-tested relay and current sensors/trasformers
- Ideal solution for metal-clad switchgear
- Modular spring-operated mechanical actuator ensuring easy operation even without auxiliary supply
- Interchangeable with HD4/R
- Performs fast operating cycles