3.6KV Vacuum Contactor

The Sunway Hanguang 3.6KV Vacuum Contactor features core models such as the VSHC-3.6-200A/400A, adhering to international and industry standards such as IEC 60947-4-1. It utilizes a high-purity Cu-Cr contact vacuum interrupter and an optimized bistable MAC permanent magnet drive mechanism, integrating a one-time sealing process and a complete quality control system to ensure reliable operation. Our factory is equipped with a full range of advanced testing equipment. The product is compatible with mainstream medium-voltage switchgear, with over 200,000 units installed globally and exported to many countries. Exports have grown by over 10% annually in the past decade, and we have long supplied products to renowned companies such as Baowu Steel and ABB.

Core Product Features

1. Excellent Arc Extinguishing Performance, Stable and Controllable Operation

The 3.6KV Vacuum Contactor uses a one-time sealed vacuum interrupter with a vacuum degree of ≤1.33×10⁻³Pa. High-purity Cu-Cr contacts achieve arc-free switching, with a current interruption value of <3A. It has an electrical life of 250,000 cycles under AC-3 conditions and 100,000 cycles under AC-4 conditions, with over 12 years of trouble-free operation and a failure rate of less than 0.008%.

2. Advanced Operating Mechanism, Suitable for High-Frequency Applications

Equipped with an optimized bistable MAC permanent magnet drive mechanism, it supports AC120V/220V wide voltage input, with closing time ≤200ms and opening time as fast as ≤60ms. It has a mechanical life of 1 million cycles and is maintenance-free for 10,000 operations, making it suitable for high-frequency start-stop scenarios.

3. Robust Insulation Structure, Strong Environmental Adaptability

The epoxy resin APG process encapsulates and seals the pole, adapting to IV-level pollution environments. After multiple rounds of rigorous testing, it can operate stably in extreme conditions such as -40℃~+80℃ and at altitudes of 4000 meters, with electromagnetic interference resistance reaching EMC Class 4.

4. Convenient Installation and Maintenance, Controllable Operating Costs

The modular design is compatible with mainstream switchgear, allowing for single-person inspection and replacement. The fully enclosed structure requires no special maintenance for 30 years, reducing operating costs by more than 85% compared to traditional equipment. When paired with a fuse, it can handle 1000MVA fault circuits.

5. Strong Intelligent Scalability, Environmentally Compliant

The 3.6KV Vacuum Contactor can be optionally equipped with an intelligent monitoring module, supporting multiple communication protocols for access to the operation and maintenance platform. The product has no harmful gas emissions, has passed multiple international certifications, and as a compliant supplier, meets global market access requirements.

6. Strong Backing and Comprehensive Quality Control and Service

As a professional manufacturer, the company produces 350,000 vacuum interrupters annually, with each product undergoing 20 factory inspections. It has 80 technical support centers worldwide, providing a 10-year warranty, with 24-hour on-site response in China and 72-hour response overseas.

Product Parameters

Wide Range of Application Scenarios

1. Mining Sector

Suitable for mining hoists, crushers, and other equipment, resistant to high dust and strong vibrations, ensuring continuous operation of mining operations.

2. Metallurgy Industry

Used in rolling mills, electric furnaces, and other equipment in metallurgical plants, resistant to high temperatures and strong electromagnetic interference, helping companies improve production stability.

3. Petrochemical Industry

Suitable for chemical explosion-proof areas, with corrosion resistance and condensation resistance, eliminating arc hazards, and has been a long-term supplier to Sinopec.

4. Rail Transit

Applied in rail transit traction substations, resistant to strong vibrations and wide temperature ranges, ensuring stable power supply to the traction system.

5. New Energy Sector

Suitable for wind power and photovoltaic power station equipment, resistant to extreme outdoor environments, helping to achieve efficient grid connection of clean energy.

6. Marine and Shipping

Used in offshore platforms and ship power systems, resistant to salt spray corrosion, adaptable to turbulent conditions, ensuring stable power supply. 7. General Industry and Infrastructure.

Covering general industrial and infrastructure sectors, our solutions are compatible with ABB and Siemens equipment, ensuring continuous power supply for critical loads.