Motors for railway drives

Motors for railway drives, especially fan motors, must meet specific requirements in order to be used in rail vehicles. These engines are manufactured in a special railway design to withstand the extreme conditions that prevail in railway operations. Challenges include shock and vibration caused by rail operation, inverter control and the ability to handle high temperatures. These special requirements ensure that the engines in rail vehicles operate reliably and efficiently, even under the most demanding operating conditions.


Motors for railway drives, especially fan motors, are characterized by their special railway design, which is optimized for use in rail vehicles. They are robustly built to withstand shock and vibration caused by operating on rails. In addition, they are designed to be controlled via inverters, which enables precise control of the motor speed. These engines are also capable of handling high temperatures, which are common in rail operations. Their design ensures high reliability and durability under extreme conditions, making them ideal for use in rail vehicles.


Train drive motors are used in a variety of rail vehicles, including trains, trams and subways. They are mainly used as fan motors to ensure cooling of electrical and mechanical components, increasing the efficiency and service life of vehicles. These engines are also integrated into drive trains, where they propel the vehicles. Thanks to their robust construction and their ability to work in extreme conditions, they are essential for the reliable and efficient operation of rail vehicles in various climatic and operational environments.

Our range of services

Compact drives for the railway sector are mainly used to control controlled fans in trains to ensure optimal air conditioning of the passenger compartments and efficient cooling of the traction motors and transformers. These drives must meet high mechanical and electrical requirements and withstand extreme climatic conditions as well as vibration and shock loads. According to DIN EN 61373, they must withstand impacts of 5 g and temperature ranges from -25 to +50 °C without losing performance. They also have to start at +70 °C and deliver full power for 10 minutes. Temperature changes of up to 3 K/s when entering and exiting tunnels represent additional requirements. The motors and frequency converters must remain powerful across the entire frequency range and must be manufactured according to special railway standards and regularly maintained to ensure a service life of 30 years.

Technische Details


Umrichterbetrieb S9


IP 55, optional IP 56, IP 65 nach EN 60034-5 (IEC 60034-5)


IM B3, IM B35, IM B5, IM B14, IM B34 und abgeleitete Bauformen nach EN 60034-7


nach EN 60034-6 (IEC 60034-6): eigenbelüftet, IC 411, fremdbelüftet, IC 416, unbelüftet, IC 410

Kühlmitteltemperatur/ Aufstellungshöhe

standardmäßig -20 °C bis +40 °C, Aufstellungshöhe 1000 m über NN, abweichende Temperaturen und Aufstellungshöhen auf Anfrage


optional, RFID System iID®2000 (13.56 MHz basierend auf ISO 15693)

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VEMoDRIVE Kompaktantriebe für den Bahneinsatz

VEMoDRIVE compact drives for railway use


EU declaration of conformity

EU-Konformitätserklärung für asynchrone Drehstrom-Motoren/-Generatoren mit Käfigläufer oder Schleifringläufer

EU declaration of conformity for asynchronous three-phase motors/generators with squirrel cage or slip ring rotors

Safety instructions

Sicherheitshinweise für elektrische Betriebsmittel in Niederspannungsstarkstromanlagen (2014/35/EU)

Safety instructions for electrical equipment in low-voltage power systems (2014/35/EU)

Assembly, operating and maintenance instructions

Zusätzliche Bedienungsanleitung Permanenterregte Synchronmotoren

Additional operating instructions permanent magnet synchronous motors