Traction motors

Key Visual Traction Motor

Our drives and traction motors operate all over the world: More than 90,000 motors are in use in a variety of rail vehicles, from trams to high-speed trains to powerful locomotives. We match our traction motors and drives perfectly to one another and to the project-specific requirements. Our expertise in manufacturing and high product quality is certified to ISO/TS 22163 (IRIS International Railway Industry Standard) and Q1 (highest quality rating from Deutsche Bahn). We can manufacture motors and drives in a multitude of countries to meet our customers’ needs, and our service network covers the world.

Learn more about our traction motors and drives from Siemens Mobility:

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Our traction motors

Persuasive in every detail

Traction motors from Siemens stand for reliability, longevity, and energy-efficiency. We use our long track record of experience in development, manufacturing, and operation to configure the optimal solution to your requirements.
Customized traction motors and drives

A smoother ride with our motors

Traction motors and drives from Siemens are in use in many rail vehicles around the world – for good reason.

High quality, optimal reliability

Our Traction motors and drives harness all the advantages of digitalization. While customer requirements are the starting point, our experts also incorporate field data into their work to create a digital twin. The electrical design is then optimized for performance, robustness, and thermal characteristics using modern analytics. The results of simulationsare verified in our own test center and in real system checks on the vehicle and the intelligence gained flows back into future development. Quality and longevity are assured by comprehensive testing of 100 percent of the components during manufacturing. In addition to testing the individual component, the compatibility of the entire system of gears, motors, converters, controls, and transformers is also checked in our system test center.

 

Advanced design

Traction motors from Siemens are known for their compact design that enables the drive system to be optimized to the available space. The high-value flat-wire stator winding has an especially high power-to-weight ratio as well as mechanical stability. The proven insulation system, MICALASTIC®, enables open circuit cooling and self-ventilation up to a high power level, reducing maintenance costs, saving space, and increasing reliability.

Extremely energy efficient

The traction asynchronous motors use copper in the rotor design, which results in low losses due to the metal’s superior conductivity. Lower losses translate into higher energy efficiency and an increased power-to-weight ratio. Our permanent-magnet motors are ideal for applications with very demanding efficiency requirements: No energy is needed to set up the rotor field. If required, our most powerful motors can also be encapsulated and air-cooled.

Comprehensive portfolio

Traction motors and drives for all rail applications

Our drive system portfolio covers the entire spectrum of rail applications. Here are a few examples from the multitude of possible combinations of traction motors and gears.
Typical applications

Full force ahead with Siemens

Optimal Traction performance, low noise, and a high comfort level for passengers: With traction components from Siemens, your trains will operate reliably, economically and efficiently.

Technical specifications

Rated power [kW]
50 to 190
Rated speed [rpm]
1,580 to 2,500
Maximal operating speed [rpm]
3,570 to 5,250
Rated torque [Nm]
210 to 1,010
Cooling

Self ventilated / open circuit cooled

Water jacket / closed circuit cooled

Self ventilated / closed circuit cooled

Weight [kg]
350 to 450
Rated power [kW]
90 to 300
Rated speed [rpm]
1,470 to 3,300
Maximal operating speed [rpm]
3,460 to 8,000
Rated torque [Nm]
430 to 1,260
Cooling

Self ventilated / open circuit cooled

Forced ventilated / open circuit cooled

Water jacket / closed circuit cooled

Self ventilated / closed circuit cooled

Weight [kg]
350 to 600
Rated power [kW]
140 to 510
Rated speed [rpm]
1,570 to 2,500
Maximal operating speed [rpm]
3,250 to 6,000
Rated torque [Nm]
640 to 2,030
Cooling

Self ventilated / open circuit cooled

Forced ventilated / open circuit cooled

Water jacket / closed circuit cooled

Self ventilated / closed circuit cooled 

Weight [kg]
450 to 1,100
Rated power [kW]
320 to 1,250
Rated speed [rpm]
1,500 to 4,150
Maximal operating speed [rpm]
3,650 to 5,900
Rated torque [Nm]
770 to 7,780
Cooling

Self ventilated / open circuit cooled

Forced ventilated / open circuit cooled

Self ventilated / closed circuit cooled

Weight [kg]
530 to 780
Rated power [kW]
130 to 1,630
Rated speed [rpm]
240 to 2,280
Maximal operating speed [rpm]
1,460 to 4,300
Rated torque [Nm]
2,920 to 12,990
Cooling
Forced ventilated / open circuit cooled
Weight [kg]
1,630 to 2,980

Selected references

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Learn more about the advantages of our traction drives and motors by contacting our experts directly.