0.4KV Vacuum Interrupter For Contactor

Sunway Hanguang has been deeply rooted in the electrical field for over fifty years, possessing advanced German and Japanese equipment, fully automated production lines, and over 30 core patents. Its annual production capacity consistently ranks among the industry leaders; its dedicated factory achieves standardized and intelligent production, efficiently meeting global bulk and customized demands.

This product is a core product of the company's low-voltage control equipment, the 0.4kV Vacuum Interrupter for Contactors, with a rated voltage of 0.4kV (400V AC), suitable for 50/60Hz systems, a vacuum degree of ≥1.33×10⁻³Pa, and arc-free interruption to solve the pain points of traditional arc extinguishing. The product complies with IEC, GB, and NEMA standards, is compatible with mainstream contactors, and has been operating reliably in over 50 countries worldwide, with over 500,000 units installed.

Product Features and Core Advantages

1. Excellent Performance, Safe and Durable

The 0.4kV Vacuum Interrupter for Contactors uses high-purity Cu-Cr alloy contacts (current limiting value <3A) and imported 316L stainless steel bellows (fatigue life exceeding 1 million cycles). Helium mass spectrometry leak detection strictly controls sealing, with an annual leakage rate of <0.5%. The integrated ceramic and metal structure provides excellent voltage resistance, suitable for Class III pollution, -40℃~+85℃ wide temperature range, and altitudes ≤4000 meters, achieving 30 years of maintenance-free operation.

2. Leading Technology, Controllable Quality

Based on core processes such as high-frequency induction sealing, the product consistency and vacuum degree accuracy are improved; core components are strictly selected and inspected, and quality control is maintained throughout the entire production process. Each product undergoes 12 comprehensive inspections before leaving the factory, with traceable records, resulting in a failure rate of ≤0.02%, demonstrating the quality strength of a professional manufacturer.

3. Wide Adaptability and Intelligent Scalability

Perfectly compatible with mainstream contactors, allowing for quick tool-free replacement without modifying the equipment structure. Precise operating parameters (three-phase synchronicity ≤1ms, bounce time ≤3ms) can meet high-frequency operation requirements of ≤3600 times/hour. Optional monitoring modules can be integrated into intelligent systems, adapting to Industry 4.0 needs.

4. Strong Endorsement and Comprehensive Service

The company holds over 30 core patents, and its products have passed numerous authoritative certifications, with some models offering overseas certification. As a reliable supplier, standard models are shipped within 5-10 days, and OEM/ODM customization is supported. 30 global technical centers provide 7×24-hour multi-language full-process after-sales service.

Detailed Product Parameter Table

Product Application Scenarios

Backed by China's complete industrial chain, the 0.4kV Vacuum Interrupter For Contactor, with its advantages of arc-free switching, long lifespan, and maintenance-free operation, is widely used in:

- Industrial motor control: Suitable for high-frequency operation scenarios in steel, chemical, and other industries, improving motor control safety;

- Power compensation: Enables safe switching of capacitor banks, improving grid energy efficiency;

- New energy and energy storage: Used in photovoltaic and wind power systems to ensure stable power conversion;

- Building and transportation: Used in smart buildings and rail transit auxiliary power supplies, providing safety assurance;

- Special environments: Suitable for data centers, high-temperature and high-humidity environments, and explosion-proof areas, ensuring stable operation.

Frequently Asked Questions

1. What customized requirements can the product support?

As a professional manufacturer, the company supports multi-dimensional customization for the 0.4kV Vacuum Interrupter For Contactor, including current and monitoring modules, providing OEM/ODM services and adapting to various international standards and contactors.

2. How is the quality stability of each product ensured?

Core components are strictly selected and inspected, and quality control is implemented throughout the production process. Each product undergoes 12 comprehensive inspections before leaving the factory and is accompanied by a traceability file; the factory implements standardized management, with a failure rate of ≤0.02%.

3. What does the warranty policy and after-sales service include?

The product provides a 10-year limited warranty; as a reliable supplier, 30 global technical centers provide 7×24-hour multi-language full-process services, including installation and troubleshooting.

4.What are the important points to note regarding product transportation and installation?

The product is transported using moisture-proof and shock-resistant packaging to prevent damage from impact and moisture. Professional guidance is available for installation, which must comply with environmental requirements. Performance verification is recommended after installation.