Ensuring your safe journey
The Gerapid high-speed DC circuit breaker is a single-pole DC circuit breaker specifically designed for DC traction substations. The combination of high breaking capacity and current-limiting characteristics makes Gerapid the perfect solution for this application. In conventional applications, Gerapid can also be used for the protection of large-capacity DC distribution systems. The Gerapid DC circuit breaker operates at currents up to 8000 A and rated voltages up to DC 3600 V.
Key advantages
- Comprehensive standards: Tested and certified against all key standards, including IEC, EN, and ANSI. Certified with CE, CCC, UL, and EAC
- High insulation: The enclosed structure reduces the risk of arc faults and the release of high-temperature gases
- Compact modular design: Circuit breakers of different current ratings (up to the 6000 A frame) share the same external dimensions, facilitating user installation
- Double contact design: Maintenance-free main contacts and easily maintainable arcing contacts
- Integrated control system: Modular integrated control boards simplify the design of customer peripheral control circuits while providing highly reliable electrical interlocking
- High customization: Optional primary terminal arrangements, closing and opening coil voltages, auxiliary contacts, high-current trip settings, and various signal contact indicators
Product features
- Compact and uniform breaker dimensions, up to 8000 A / 3600 V DC
- Double contact system with high breaking capacity
- Modular arc chute design for easy maintenance
- Mechanical latching mechanism, no auxiliary power required to maintain the breaker in the closed position, eliminating the risk of power loss
- Equipped with a bidirectional high-current electromagnetic trip device with fixed or adjustable settings
- Comprehensive accessory configuration available across the entire series












