Transient current protection surge arrester 3EB5

for substationsanti-surgefor railway applications

Product overview
Siemens Energy railway surge arresters designed for reliable protection of rail systems including traction substations, transmission lines and rail vehicles. They protect infrastructure and vehicles from transient overvoltages caused by lightning strikes, switching operations and other disturbances. Siemens Energy has over 80 years of experience in surge arrester technology for railway applications.

Key benefits

• Certified quality and compliance with international standards for safety and reliability
• Easy installation and maintenance for straightforward integration and minimal upkeep
• Long operating life and cost efficiency; engineered to withstand harsh environmental conditions, reducing downtime and repair expenses
• Customized solutions offering tailored designs for unique railway applications

Product types and typical applications

• 3EB4 silicone surge arrester in composite housing
  • Design: Housing made of fiberglass-reinforced plastic (FRP) and silicone rubber sheds
  • Voltage: Suitable for AC systems up to 25 kV and DC systems up to 3 kV
  • Performance: Supports train speeds up to 420 km/h; rated short circuit current 50 kA
  • Compliance: Tested according to IEC 60099-4 (AC) and EN 50526-1 (DC)
  • Safety: Fire tests according to DIN EN 17084, DIN EN ISO 5659-2, DIN EN 45545-2; shock and vibration test according to IEC 61373
  • Applications: High-speed and intercity trains, commuter and regional trains, multi-system locomotives, urban transport (light rail, metros, tram cars) and rail electrification
• 3EB5 silicone surge arrester with Cage Design™
  • Design: Cage Design housing with direct molded silicone
  • Voltage: Suitable for AC systems up to 25 kV and DC systems up to 3 kV
  • Performance: Supports train speeds up to 320 km/h; rated short circuit current 50 kA
  • Compliance: Tested according to IEC 60099-4 (AC) and EN 50526-1 (DC)
  • Safety: Fire tests according to DIN EN 17084, DIN EN ISO 5659-2, DIN EN 45545-2; shock and vibration test according to IEC 61373
  • Applications: Intercity trains, commuter and regional trains, multi-system locomotives, urban transport and rail electrification
• Rail electrification DC types 3EB2 and 3EB3
  • Design: Silicone-housed surge arresters developed for overvoltage protection in DC systems
  • Classification: 3EB2 classified as DC-B; 3EB3 classified as DC-C with high energy absorption capacity
  • Compliance: Tested according to EN 50526-1
  • Safety: Fire tests according to DIN EN 17084, DIN EN ISO 5659-2, DIN EN 45545-2; shock and vibration test according to IEC 61373
  • Applications: Urban transport and rail electrification DC systems

Why choose Siemens Energy railway surge arresters

• Proven expertise: Over 80 years of experience in railway surge arrester technology
• Comprehensive product range: Solutions for AC and DC railway applications, rated voltage coverage up to 45 kV in the portfolio
• Reliability and durability: Designed for long service life and minimal maintenance
• Global support: Expert advice and support from Siemens Energy professionals worldwide

Technical characteristics / specifications

• Materials: Silicone rubber and fiberglass-reinforced plastic (FRP) for housings and sheds
• AC voltage ratings: product variants suitable up to 25 kV (portfolio up to 45 kV rated voltage)
• DC voltage ratings: typical DC suitability up to 3 kV for specific types (3EB2, 3EB3, etc.)
• Rated short-circuit current: 50 kA for key AC designs (3EB4, 3EB5)
• Train speed compatibility: supports up to 420 km/h (3EB4) and up to 320 km/h (3EB5)
• Standards and tests: IEC 60099-4, EN 50526-1; fire tests DIN EN 17084, DIN EN ISO 5659-2, DIN EN 45545-2; shock and vibration IEC 61373
• Classifications: DC-B (3EB2), DC-C (3EB3) for DC energy absorption requirements
• Typical applications: traction substations, transmission lines, high-speed and regional trains, multi-system locomotives, light rail, metros, trams, and rail electrification projects