Flameproof Vacuum Circuit Breakers are available in power supply rate of 3300 and 6600 volts. These Vacuum Circuit Breakers are provided with electrically and mechanically interlocked Isolators in a separate chamber. These Vacuum Circuit Breakers have special windows for visual verification of isolator disengagement before opening main chamber to ensure proper safety. Flameproof Vacuum Circuit Breakers have the provision of motorize as well as manual spring charging.
