Siemens Mobility Vectron Dual Mode gains Germany–Austria approval

The Vectron Dual Mode locomotive from Siemens Mobility has been authorized for cross-border operation between Germany and Austria, expanding its approved operating territory and supporting interoperable rail services across the two countries. Austria becomes the second country, after Germany, to grant full authorization for this locomotive type.

The first locomotives approved for operation in both countries have been delivered to the Austrian rail operator Stern & Hafferl Verkehr. The units were manufactured at Siemens Mobility’s Munich-Allach facility and are equipped with the Siemens Trainguard Basic on-board unit, implementing the European Train Control System (ETCS) Baseline 3.6.

Dual-mode operation for mixed infrastructure
The Vectron Dual Mode is designed to operate under overhead catenary as well as on non-electrified routes using an onboard diesel power unit. This configuration allows trains to transition between electrified and non-electrified sections without changing locomotives, reducing dwell times and operational complexity. Under catenary supply, the locomotive enables locally emission-free operation, while diesel mode provides continuity on last-mile or rural sections.

Such capability is particularly relevant for rail networks with incomplete electrification, where maintaining timetable reliability often requires traction changes. By eliminating these changes, dual-mode traction can improve asset utilization and network efficiency.

ETCS-equipped for cross-border interoperability
The locomotives are fitted with ETCS Baseline 3.6 via Siemens’ modular Trainguard Basic system, supporting standardized train control and signaling across national borders. This enables compliance with European interoperability requirements and facilitates smoother international operations for both freight and passenger services.

The authorization confirms that the vehicle, signaling integration and safety systems meet regulatory requirements in both Germany and Austria, allowing unrestricted cross-border use.

Technical configuration
The Vectron Dual Mode is based on the established Vectron platform and configured for a standard track gauge of 1,435 mm. It has a service weight of 90 tonnes and is designed for 15 kV AC operation, with an alternative version available for both 15 kV and 25 kV AC systems.

Maximum power output at wheel is rated at up to 2,400 kW in electric mode and up to 2,000 kW in diesel mode. The locomotive carries a 2,600-liter diesel tank and is designed for a maximum operating speed of 160 km/h. A train power supply is also available, supporting passenger and auxiliary systems.

Operational and environmental relevance
For operators such as Stern & Hafferl Verkehr, the dual authorization supports seamless operation across national networks and improves flexibility in serving routes that include non-electrified sections. From an environmental perspective, the ability to operate electrically where infrastructure allows helps reduce emissions, particularly in urban and densely populated areas.

The cross-border approval of the Vectron Dual Mode reflects growing demand for interoperable, flexible rolling stock capable of supporting modal shift objectives while accommodating the realities of mixed electrification across European rail networks.

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