Project Profile: Berlin S-Bahn 483/484 Series Rolling Stock

This project profile details the large-scale modernization of the Berlin S-Bahn network through the procurement and deployment of 106 new Series 483/484 electric multiple units (EMUs). The initiative, led by a consortium of Siemens Mobility and Stadler, was designed to substantially increase passenger capacity, enhance operational efficiency, and improve accessibility across key suburban lines.

Project Fact Sheet

Technical Specifications

The Series 483/484 trains represent a significant technological upgrade for the Berlin S-Bahn. The modular design consists of two-car quarter-trains (Series 483) and four-car half-trains (Series 484), which can be coupled for flexible operation based on passenger demand. Manufactured by a Stadler-led consortium with Siemens Mobility, the design phase included rapid prototyping with a 1:1 scale model followed by rigorous testing between 2018 and 2020. Key features include full walkthrough accessibility between cars, energy-efficient air conditioning, and a state-of-the-art passenger information system. The trains operate on a standard gauge (1,435 mm) track with a third-rail 750V DC power supply. Enhanced driver visibility is achieved via exterior cameras, complementing a modern driver’s cab with real-time diagnostics and control systems.

Key Rolling Stock Data

Key Takeaways

• Capacity and Efficiency Enhancement: The new fleet demonstrably increases passenger capacity and improves timetable reliability on Berlin’s critical Ringbahn (S41/S42) and southeastern suburban lines.
• Modern Passenger Experience: A focus on accessibility, including level boarding and designated wheelchair spaces, along with modern amenities like air conditioning and real-time information systems, sets a new standard for the network.
• Successful Collaborative Delivery: The Siemens-Stadler consortium serves as a benchmark for effective large-scale rolling stock procurement, moving from contract to full operational deployment through a structured process of design, testing, and phased integration.

Frequently Asked Questions (FAQ)

When did the new S-Bahn trains start running in Berlin?

The first Series 483/484 trains entered passenger service on January 1, 2021. The full fleet of 106 trains was delivered and became operational across the designated lines by September 2023.

Who built the new 483 and 484 series S-Bahn trains?

The new trains were engineered and manufactured by a consortium of Siemens Mobility and Stadler. Stadler was the lead partner in the consortium responsible for the project’s delivery.