ZN63A (VS1)-12 Indoor High Voltage Withdrawable Vacuum Circuit Breaker with Embedded Poles
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Application: Designed for 12KV indoor power systems, serving as a high-reliability protection and control unit for power grids, substations, and industrial enterprises.
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Advanced Structure: Features an withdrawable (handcart) design specifically compatible with metal-clad switchgear like KYN28 (GZS1), XGN, and GG-1A.
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Embedded Pole Technology: Utilizes embedded pole technology to seal the vacuum interrupter, protecting it from dust, humidity, and physical impact for enhanced insulation.
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Safety First: Fully equipped with anti-pumping relays (KO) and closing interlock devices to prevent electrical misoperation and ensure operator safety.
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Extreme Endurance: Delivers superior mechanical life of up to 30,000 cycles and E2 level electrical life, suitable for applications requiring frequent switching.
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Integrated Control: Includes a user-friendly front panel with built-in operation buttons, status indicators, and a control power supply supporting AC/DC 220V.
Product Description
The ZN63A-12 (VS1) series is a high-performance indoor vacuum circuit breaker (VCB) widely used for protecting and controlling electrical equipment in power plants, substations, and industrial and mining enterprises. This series complies with national and international IEC standards, achieving high performance levels of M2-E2-C2.
Key Features & Advantages
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Integrated Modular Design: Utilizes an integrated and miniaturized design to achieve high transmission efficiency and compact installation, specifically suited for switchgear such as the KYN28.
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Embedded Pole Technology: Protects the vacuum interrupter from external environmental conditions, which significantly improves insulation reliability.
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Safe Operation & Interlocking: Equipped with “five-prevention” safety requirements, including anti-pumping relays (KO) and closing interlock devices to prevent misoperation.
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Maintenance-Free Mechanism: Offers the advantages of a lightweight design and a low-maintenance operating mechanism, allowing for frequent operation without constant servicing.
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Long Mechanical Life: Specifically designed for high-cycle environments, with a mechanical life rated for up to 30,000 operations.
Applications
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Switchgear Compatibility: Primarily used as a withdrawable unit for KYN28 (GZS1), XGN, GG-1A, and other metal-clad switchgear types.
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Power Infrastructure: Reliable for use in substations and power plants.
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Industrial Use: Suitable for industrial power distribution systems and the protection/control of motors, transformers, and capacitors.
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