11KV Vacuum Interrupter For Railway Circuit Breaker

The core models of this 11KV Vacuum Interrupter for Railway Circuit Breakers are VI-RCB-11/630-25 and VI-RCB-11/1250-31.5, compatible with 50/60Hz AC systems. With a vacuum degree of ≤1.33×10⁻³Pa, it achieves arc-free interruption and zero re-ignition, ensuring the stability of the power supply system.

Sunway Hanguang has built a fully automated factory using equipment imported from Germany and Japan, possessing over 20 core patents and numerous international and domestic authoritative testing certifications. With over 200,000 units installed globally, it has been recognized by companies such as Siemens and CRRC, and has contributed significantly to the upgrading of railway electrification in China's rail transit network.

Product Parameters

Product Features and Advantages

1. Excellent Arc Extinguishing and Electrical Performance

The 11KV Vacuum Interrupter for Railway Circuit Breakers uses high-purity Cu-Cr alloy longitudinal magnetic field contacts, with a current limiting value of <3A, strong resistance to welding, effectively suppressing operating overvoltage, protecting the insulation of sensitive rail transit equipment, and conforming to international standards.

2. High Sealing Performance and Long Service Life

Equipped with imported 316L stainless steel bellows, helium mass spectrometry leak detection ensures strict sealing control, with an annual leakage rate of <0.5%. Both mechanical and electrical life reach 50,000 cycles, achieving long-term maintenance-free operation and reducing operating and maintenance costs.

3. Strong Environmental Adaptability and High Safety

The high-strength ceramic shell is specially treated, providing excellent insulation. It has a power frequency withstand voltage of 42kV/1min and a lightning impulse withstand voltage of 95kV (peak), meeting vibration resistance standards, and is resistant to wide temperature ranges and high altitudes, with IP67 protection, making it suitable for various complex scenarios.

4. Precise Quality Control and Convenient Operation and Maintenance

Each 11KV Vacuum Interrupter for Railway Circuit Breakers undergoes 15 comprehensive inspections before leaving the factory, with QR code traceability, resulting in an on-site failure rate of <0.015%; the modular design facilitates replacement, and optional monitoring modules are available. 7x24 hour operation and maintenance support is provided by 35 technical centers worldwide.

Product Applications

The 11KV Vacuum Interrupter for Railway Circuit Breakers is widely used in power supply systems for subways, high-speed railways, and intercity railways, undertaking tasks such as load switching and fault interruption. It is SF₆-free, meeting environmental protection requirements, and is widely used in China and "Belt and Road" overseas projects, adapting to various complex scenarios.

Frequently Asked Questions

Q1: Do you offer OEM/ODM customization for the 11KV railway circuit breaker vacuum interrupter?
A: Yes. Sunway Hanguang supports customization of rated current, operating frequency and intelligent monitoring modules, with full compatibility with mainstream railway circuit breaker platforms. OEM/ODM services are available with 5-10 day delivery for standard models.

Q2: How do you guarantee the quality of each TD325J railway circuit breaker vacuum interrupter?
A: Core components are sourced from renowned international brands with full-process quality control in our fully automated factory. Each unit comes with a test report and QR-code traceability, with a field failure rate below 0.015%. Products comply with IEC 62271-200 Class E2 and JB 8738-2008 standards and are KEMA and CESI certified.

Q3: What is the warranty and after-sales service policy?
A: Every unit is covered by a 10-year limited warranty with vacuum decay guaranteed at ≤20%. 35 global technical centers provide multi-language technical and maintenance support with 7x24 response, ensuring stable operation for rolling stock OEMs and railway operators worldwide.

Q4: What are the installation and shipping requirements for the railway circuit breaker vacuum interrupter?
A: Products ship in moisture-proof and shock-resistant packaging. Installation must comply with relevant rail transit requirements. After installation, voltage withstand and mechanical characteristics tests are recommended to ensure proper operation.

Q5: What is the lead time and MOQ?
A: Minimum order quantity starts from 1 piece for sample and trial orders. Standard models are typically delivered within 5-10 days after order confirmation — the fastest in our VCB series. Volume pricing is available for larger quantities. Contact us for a formal quotation.

Q6: Which applications is this 11KV vacuum interrupter suitable for?
A: It is widely used in high-voltage power supply systems for subways, high-speed railways and intercity railways, performing load switching and fault interruption. The SF6-free design meets environmental regulations and is suitable for domestic and international rail transit projects, including Belt and Road overseas projects.