Vacuum Circuit Breaker 6(10) kV Series VR3 for Efficient Electrical Switching

Vacuum circuit breakers of ?3 series are designed for switching alternating current circuits with rated voltage 6(10) kV and frequency 50(60) Hz in normal and emergency modes of operation in systems with isolated or partially earthed neutral. Switches ??3 are used for general industrial application. They are used in switchgears and in CSR of various manufacturers, as well as for replacement of worn-out switching devices under the Retrofit programme.

Advantages: <ul> <li>- High mechanical life (100000 cycles of HE).</li> <li>High switching life at rated current and short-circuit current.</li> <li>Poles and actuator of the switches are maintenance-free during the whole service life.</li> <li>High durability and resistance to mechanical impact.</li> <li>Universal control scheme.</li> <li>High safety of operating personnel.</li> <li>Long warranty period of operation.</li> <li>Service life - 30 years.</li> </ul>.