S. Internationals

railway rolling stock

ERCU For Rolling Stock :

We specialize in the development and production of earth return units that redirect electrical currents away from axle bearings. By doing so, we ensure that your bearings remain protected and enjoy an extended service life.

  • Trusted by Leading Rail Companies: S.Internationals’ earth return units, including axle and end return brushes and holders, have earned the trust and approval of major Coach and Locomotive manufacturing units. This is a testament to the quality and reliability of our products, which meet the stringent standards of these esteemed organizations.
  • Efficiency and Cost Savings: Our engineered units provide a low-maintenance, long-lasting solution, translating into significant cost savings for rail operations.Avoid frequent maintenance and bearing replacements – with our solutions, you can focus on what matters most: keeping your rail system running smoothly.
  • Protecting Your Investment: We understand that rail systems often face harsh environmental conditions. That’s why our earth return units come with insulated and coated castings, offering robust protection against challenging environments. Your investment is safeguarded, even in the harshest of conditions.
  • Stability and Reliability: Our units ensure stable, low-vibration operation, preventing breaks in the contact system and reducing brush wear. This not only extends the life of your components but also ensures the reliability of your rail system, minimizing disruptions.
  • Flexible Integration: Whether you need Original Equipment Manufacturer (OEM) components or a retrofit solution, we’ve got you covered. Our systems can be seamlessly integrated into your existing setup, providing flexibility to meet your specific rail infrastructure needs.


Nos. of carbon brush: 2
Total rating: 400 Amps


Nos. of carbon brush: 3
Total rating: 600 Amps


Nos. of carbon brush: 3
Total rating: 600 Amps

Our Earth return current units are

  • IP65 compliant as per IEC-60529.
  • Shock and vibration resistant as per IEC-61373. 
  • Resistant to chemical corrosion.

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