12KV Vacuum Contactor

The Sunway Hanguang 12KV Vacuum Contactor focuses on the high-frequency switching needs of medium-voltage loads, covering multiple models and adaptable to long-term operation at 300 cycles per hour and short-term operation at 600 cycles per hour. Founded in 1968, Sunway Hanguang is a high-tech enterprise specializing in high-voltage electrical equipment. As a professional manufacturer, it has become one of the companies with the widest range of vacuum interrupter parameters globally, thanks to its comprehensive quality control and strong R&D capabilities.

The 12KV Vacuum Contactor utilizes a high-purity Cu-Cr contact vacuum interrupter and an optimized bistable MAC permanent magnet drive mechanism, compatible with mainstream medium-voltage switchgear. Its manufacturing plant is equipped with a full set of advanced testing equipment, and each unit undergoes 20 comprehensive factory tests. Exported to many countries worldwide, its exports have grown by over 10% annually in the past decade, setting a high-quality benchmark in China and the global market.

Core Product Features

1. Excellent Arc Extinction, Stable Operation

Equipped with a self-optimized vacuum interrupter, using a single-step sealing process, the vacuum degree is strictly controlled within 1.33×10⁻³Pa. High-purity Cu-Cr contacts achieve arc-free switching, eliminating the risk of arc re-ignition. After rigorous testing, the electrical life is 250,000 cycles under AC-3 conditions and 100,000 cycles under AC-4 conditions, with a failure rate of less than 0.007% and an average mean time between failures (MTBF) of over 30 years.

2. Advanced Mechanism, Optimized for High Frequency

The 12KV Vacuum Contactor utilizes an optimized bistable MAC permanent magnet drive mechanism, supporting AC120V/220V wide voltage input, with closing time ≤200ms and opening time as fast as ≤60ms. It features multiple protection functions and multi-mode control. It boasts a mechanical life of 1 million cycles, 10,000 operations without maintenance, and is suitable for 1000MVA fault level circuits, specifically designed for high-frequency start-stop applications.

3. Robust Insulation, Strong Environmental Adaptability

The sealed pole column uses epoxy resin APG integral encapsulation, offering excellent resistance to pollution and condensation, and is suitable for Class IV pollution environments. It can operate stably in temperature differences of -45℃~+85℃, at altitudes of 4000 meters, and in high salt spray and strong electromagnetic interference environments, with electromagnetic interference resistance up to EMC Class 4.

4. Convenient Operation and Maintenance, Controllable Costs

The modular design is compatible with mainstream switchgear, and installation and maintenance can be completed by a single person using conventional tools. The fully enclosed structure requires no special maintenance for 30 years, reducing operation and maintenance costs by more than 85% compared to traditional equipment. It can directly replace similar products from international brands, offering strong compatibility.

5. Intelligent and Expandable, Environmentally Compliant

Optional intelligent monitoring modules are available, supporting multiple communication protocols for seamless integration into intelligent operation and maintenance platforms. The product has no harmful gas emissions and has passed multiple environmental and quality certifications, with optional international certifications to meet global compliance requirements.

6. Strong Endorsement, Comprehensive Quality Control

Backed by a full set of advanced testing equipment, each product is traceable, with an annual production and sales volume of 350,000 vacuum interrupters. 150 global technical support centers provide full-cycle service, with 7×24-hour after-sales response and a 10-year limited warranty.

Product Parameters

Typical Application Scenarios

1. Mining Industry: Motor control for equipment such as mining hoists, crushers, and conveyors, suitable for high-dust and strong vibration conditions, and resistant to high-frequency start-stop requirements, ensuring continuous and uninterrupted mining operations. It has been stably applied in several large-scale mining projects.

2. Metallurgy Industry: Control of rolling mills, electric furnaces, fan systems, and electric heating equipment in metallurgical plants, capable of withstanding high temperatures and strong electromagnetic interference environments, accurately achieving load connection and disconnection, contributing to stable and efficient production processes for companies such as Baowu Steel.

3.Petrochemical Industry: Motor and pump control and capacitor bank switching in explosion-proof areas of chemical plants, featuring corrosion resistance and condensation resistance, meeting safety requirements for explosion-proof environments, eliminating arc hazards, and providing long-term supporting services for companies such as Sinopec and CNOOC.

4. Rail Transit: Auxiliary switch control for traction substations in railways and urban rail transit, resistant to strong vibrations and wide temperature ranges, providing reliable assurance for the stability of the traction system power supply, and adapting to the stringent operation and maintenance standards of rail transit.

5.New Energy Field: Switching of reactive power compensation devices in wind and photovoltaic power plants, wind power converter bypass, and battery pack switching in energy storage systems (BESS), adapting to extreme outdoor temperatures and strong electromagnetic environments, contributing to efficient grid connection of clean energy, and aligning with carbon neutrality goals.

6.Marine and Shipbuilding: Load control of power systems on offshore platforms and ships, resistant to high salt spray and high humidity corrosion, adapting to turbulent conditions on ships, ensuring stable power supply for navigation and offshore operations, and meeting the special compliance requirements of the shipbuilding industry.

7. General Industry: Control of transformers, reactors, and compressors in industries such as building materials, machinery, and textiles, adapting to various high-frequency operations and complex working conditions, and can be directly integrated with equipment from brands such as ABB, Siemens, and Schneider, improving overall system reliability.

8. Infrastructure: Automatic switching of high-voltage power distribution systems in port cranes and large data centers, and UPS and diesel generator switching control, ensuring continuous power supply for critical loads, reducing downtime losses, and significantly improving operation and maintenance efficiency and system availability.