Three Phase VS1 Vacuum Breaker 10kV Vacuum Circuit Breaker With IEC Test Report

The VS1 (ZN63A) series vacuum breaker is an indoor high voltage switchgear designed for 7.2kV/12kV three-phase power systems with 50Hz frequency. It provides reliable protection and control of electrical equipment, with particular suitability for frequent operation at rated current or continuous open circuit conditions due to its unique vacuum circuit breaker advantages.

Featuring an integrated spring operating mechanism and breaker body design, this unit can be installed as either a fixed unit or a withdrawable unit with a specially designed pushing framework. For installations requiring XGN2 or GG1A cabinets, the fixed type breaker can be equipped with additional interlock mechanisms.

Manufactured in compliance with:

• GB1984-89 Alternating Current High Voltage Breaker
• JB3855-1996 3.6~40.5kV Indoor Alternating Current High Voltage Vacuum Breaker
• DL403-1999 Specification for Order of 10~35kV Indoor High Voltage Vacuum Breaker
• IEC56 (87 publication) requirements

• Temperature range: -15°C to +40°C
• Humidity:
  • Daily average relative humidity ≤95%
  • Monthly average relative humidity ≤90%
  • Daily average saturated vapor pressure ≤2.2×10-3 MPa
  • Monthly average saturated vapor pressure ≤1.8×10-3 MPa
• Altitude: Below 1000m
• Earthquake resistance: Up to 8 magnitude
• Must be installed away from moisture, fire hazards, explosive environments, chemical corrosion, and areas of excessive vibration