Product Category

Product Category

Explore Sunway Hanguang’s wide range of vacuum interrupters, circuit breakers, and load-breaking switches. All products meet GB, IEC, and ANSI standards—engineered for reliability and long service life. Find your ideal high-voltage solution today!
about us
About Us

About Us

Sunway Hanguang Electric Manufacturing Limited Co., Ltd.

Sunway Hanguang Electric Manufacturing Limited is an high level science and technology corporate enterprise founded in 1968, and locating in Hi-tech Zone of Xiaogan, Hubei province. Our company covers area of 40,000square meters, building area is 15,000 square meters, total assets over 80 million yuan, we have over 100 staff members, 16 R&D specialists.

“Sunway Hanguang” brand series products include vacuum interrupter, embedded pole, vacuum circuit breaker, load breaking switches and recloser and ring main unit, vacuum contactor, accessories for high-voltage electrical apparatus, and components of vacuum interrupter and VCB . The products have features of standardization, serialization, miniaturization, long life, high reliability and specialization. At present, the company has developed complete series of vacuum interrupters, including voltage ratings of 12kV, 24 kV, 36 kV, 40.5 kV , with voltage level covering from 0.66KV to 40.5KV, which are in line with the related national and international standards such as GB, IEC and ANSI etc. The company has become the enterprise covering the widest range of vacuum interrupter parameters globally.

Featured Products

Featured Products

Discover our premium vacuum interrupters, featuring one-time brazing technology for superior sealing and durability. From 12kV to 40.5kV, our products ensure stable performance across industries. Request a sample or demo now!
Sunway Hanguang is a professional manufacturer and supplier in China. Our factory provides Vacuum Circuit Breaker, Vacuum Contactor, Embedded Poles, etc. If you are interested in our products, you can inquire now, and we will get back to you promptly.

Get In Touch

Ready to enhance your electrical systems? Contact Sunway Hanguang for expert consultation, custom solutions, and reliable support. Our team is here to help—reach out today for a quote or technical advice!

Address

No.1, Huangpi Road, Xiaogan City, Hubei Province, China

News & Blogs

News & Blogs

Stay updated with the latest industry insights, company news, and technical guides from Sunway Hanguang. Learn about innovations in vacuum interrupter technology and best practices for high-voltage applications. Read our latest posts!
What is the principle of using a vacuum arc extinguishing chamber for outdoor vacuum circuit breakers?

What is the principle of using a vacuum arc extinguishing chamber for outdoor vacuum circuit breakers?

  • The core principle of the vacuum arc extinguishing chamber used in outdoor vacuum circuit breakers is to quickly extinguish the arc in a high vacuum environment, relying on the diffusion cooling of the arc plasma in the vacuum and the rapid recovery of the medium strength.
What is a vacuum arc extinguishing chamber for outdoor vacuum circuit breakers?

What is a vacuum arc extinguishing chamber for outdoor vacuum circuit breakers?

  • The vacuum arc extinguishing chamber used in outdoor vacuum circuit breakers is the core component that can quickly cut off current and protect circuits, equivalent to the "heart" of the circuit breaker. It relies on a high vacuum environment to extinguish the arc, while using ceramic or glass shells to provide insulation, ensuring safe and reliable outdoor operation.
Why Is Vacuum Interrupter For Outdoor VCB Critical for Reliable Power Distribution?

Why Is Vacuum Interrupter For Outdoor VCB Critical for Reliable Power Distribution?

  • Vacuum interrupter for outdoor VCB (Vacuum Circuit Breaker) plays a pivotal role in modern electrical distribution systems, especially in harsh outdoor environments. This article explores how vacuum interrupters enhance system safety, reduce maintenance costs, and improve operational efficiency. It also addresses common customer concerns such as durability, performance in extreme conditions, and long-term reliability. With insights from industry practices and manufacturing expertise from Sunway Hanguang Electric Manufacturing Limited Co., Ltd., this guide helps decision-makers select the right solution for their needs.
Why Is a Vacuum Interrupter for Railway Circuit Breakers Essential for Modern Railway Power Systems

Why Is a Vacuum Interrupter for Railway Circuit Breakers Essential for Modern Railway Power Systems

  • Railway electrification systems require extremely reliable protection components to maintain uninterrupted operation and ensure safety across high-voltage traction networks. One of the most critical components in railway circuit breakers is the Vacuum Interrupter For Railway Circuit Breaker, which enables rapid arc extinction, reliable switching, and long operational life.
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