Lugao's independently developed vacuum circuit breakers have received widespread acclaim overseas. The 12KV 24KV 36KV Hv and Mv Side Mounted Smart Vacuum Circuit Breaker for Switchgear, rated at 12 kV and 50 Hz, is suitable for three-phase AC indoor power distribution systems. It rapidly interrupts short-circuit currents, primarily protecting electrical equipment. The VS1 circuit breaker features a compact design and is easy to install, requiring only regular inspection of the contact wear.
The 12KV 24KV 36KV Hv and Mv Side Mounted Smart Vacuum Circuit Breaker for Switchgear is a core protection device in power distribution systems. It utilizes solid-pole technology to integrally cast the vacuum interrupter in epoxy resin, significantly enhancing insulation strength and pollution resistance. It also features a permanent magnetic operating mechanism for high-speed and reliable opening and closing operations. Its mainstream trolley-type structure seamlessly adapts to standard center-mounted switchgear models, such as the KYN28 and XGN models. It supports a rated current range of 630A to 3150A and interrupting current levels of 20kA to 40kA. Its compact design, maintenance-free operation, and excellent environmental adaptability make it widely applicable for the protection and control of transformers, motors, and capacitor banks in substations, industrial and mining power distribution, and large-scale building power supply scenarios.
• Ambient temperature: not higher than 40°C, not lower than -10°C (storage and transportation at -30°C permitted);
• Altitude: not higher than 1000m (if the altitude is increased, the rated insulation level will be increased accordingly);
• Relative humidity: daily average value not higher than 95%, daily average value of saturated vapor pressure not higher than 2.2kPa, monthly average value not higher than 1.8kPa;
• Seismic intensity: not higher than magnitude 8;
• Location free from fire, explosion, severe contamination, chemical corrosion, or severe vibration.


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