
MTM Power
Power Supplies for Railway Applications


In recent years, MTM Power has developed into one of the largest power supply manufacturers for railway applications in Europe. The decisive factor is the quality of innovative products, and the flexibility and reliability of the base business.
MTM Power offers a wide range of EN 50 155 compliant DC/DC converters, with 14W – 600W, which are especially designed for vehicle and railway applications. These devices supply the electric and electronic systems on-board and track-side.
In addition to rail converters, the product range includes DC/AC inverters, filters and multi-power supply systems. MTM Power also provides an extensive range of AC/DC modules for various applications.
MTM Power products meet all relevant standards, as well as EN/UL regulations if applicable. Large-scale testing and examination ensures high quality and reliability for the worldwide, unique thermo-selective vacuum encapsulation (U.S. Patent No. 8,821,778 B2).
Optimised power solutions for on-board, trackside, infrastructure and signalling for railways
The company’s portfolio of railway power solutions includes:
- DC/DC converters (14W – 400W)
- Multi-power supply systems (500W – 2,000W)
- High-voltage converters (250W)
- DC/DC converters with ultra-wide input range (50W, 75W)
- Sine wave inverters (750VA – 3,000VA)
- IP67 AC/DC modules (50W – 200W)
- AC/DC power supplies (5W – 100W)
- DIN rail power supplies (15W – 75W)
- Battery chargers
Our products serve applications such as:
- Train control and traction technology
- Air-conditioning systems
- Door controls
- Train lighting
- Braking systems
- Signalling
- Windscreen wiper engines
- Passenger counting and information systems
- Electronic displays
- European train control system ETCS
- On-board-ticketing
- Points control
- Sander
- Seat heatings
- Self-starting module for trams
Our products comply with standard railway requirements such as:
- EN 50 155 [electrical safety]
- EN 50 121-3-2 [EMI/RFI]
- EN 45 545-2 [fire protection]
- EN 61 373 [shock and vibration]
- EN 61 000-4-2 [ESD]
- EN 61 000-4-3 [HF-feld]
- EN 61 000-4-4 [burst]
- EN 61 000-4-5 [surge]
DC/DC converters for railways
Resistant to mechanical stress, shock and vibration, as well as environmental influences such as condensation, humidity and conductive dusts, the MTM Power DC/DC converters series PCMDS has been designed in accordance with EN 50 155, EN 45 545-2. The converters are suitable for advanced use in trains, for mounting in containers in the roof or underneath the floor, as well as in driver’s cabs, engine compartments and in the wagon.
The converters are available with three wide input ranges thus covering the battery voltages of 24V, 36V, 48V, 60V, 72V, 80V, 96V and 110V according to EN 50 155. They are available with 30W, 60W, 80W, 150W, 200W and 400W output power and galvanically isolated output voltages of 5V to 48V.
They are connected via spring clamps, which meet special requirements in railway applications regarding vibration resistance and maintenance-free operation.
The combination of these clamps with connectors reduces the time for wiring and allows an easier replacement. The converters with 30W and 150W are also available as a 19in plug-in unit.
All devices are certified and comply to the required railway standard according to EN 50 155, EN 50 121-3-2, EN 61 373 Cat 1, Class B, as well as EN 61 010-1, EN 61 000-6-4, EN 61 000-6-2 and fulfil the fire protection regulations according EN 45 545-2.
These converters operate according to the current source push-pull principle. Advantages of this switching topology include the wide input voltages with constant efficiency.
With the help of a transformer and a secondary linear choke, a galvanically isolated output voltage is produced, which is adjusted by pulse-width modulation according to the current mode principle.
The IU characteristic of the output voltage curve enables the supply of critical loads such as motors or halogen lamps. Further features of this switching topology inlcude a transformer with good coupling and low leakage inductance, which is usable for direct control of secondary synchronously detection.
Regular heat dissipation and resistance to shock, vibration, and humidity is guaranteed from the thermoselective vacuum encapsulation (US Patent Number 8,821,778 B2).
Further features include reverse polarity protection in connection with an active input current limiting. The integrated heat sink range is cooled by free convection. To ensure smooth operation, it is necessary to mount the converters without a heatsink on a heat-dissipating surface.
AC/DC power supplies for IP67 application
The most remarkable feature of the primary switched modules PM-IP67A200 is the design, suitable for applications with protection degree IP67. Furthermore, they are especially designed for the electric supply of control, sensor and actuating systems. In order to achieve protection degree IP67 for conventional power supplies, it has been necessary to install them into switching cabinets or corresponding enclosures.
The power supplies of the series PM-IP67A of MTM Power allow the use as a plug and play solution directly on-the-site. This is only possible due to the connection via special 7in / 8in connectors and the worldwide unique thermo-selective vacuum encapsulation developed by MTM Power.
The series PM-IP67A200 is available with 24V single and dual output voltages and is certified according to the standards UL 60 950-1 and UL 508. The compact supplies with AC (90VAC to 264VAC) and DC (100VDC to 300VDC) wide input range are designed for worldwide use under extreme, environmental conditions and allow an efficient, cost-saving solution for different tasks in all on-machine applications.
As an option, units with 24Vout are also available, with variable current limiting designs to allow a short-time 50% increase of output power. This function, known as power boost, allows application on motors, capacitive loads, etc.
The outputs of the dual output version are galvanically separated with a 3.3kVAC isolation voltage and are independently regulated. Both output voltages offer a limited power source accordant to UL 60 950-1 and UL 1310, NEC class 2. The devices are according to protection degree 1, and comply with the Low Voltage Directive, as well as with the up-to-date EMC standards as regards CE conformity.
Further features are rugged design, SMD-technology, automatic 100% final test and 100%-burn-in-test. The series PM-IP67A200 is constantly short circuit protected, needing no ground load, and operates within a temperature range of -25°C to 75°C.


MPG: Multi-Power Supply Systems with up to 2 kW

Series PCMDS80 and PCMDS150

Series URC with 50 W and 10 : 1 Input Range

Series PMDS/PCMDS30 for Railway Applications
MTM Power Fire Safety Designs
AC/DC Power Supplies for Railway Applications
MTM Power is a reputable provider of DC/DC converters for rail applications, as well as AC/DC power supplies.

New York City Subway
New York City in the US led the way with mass transit systems and started operating its first metro line as long ago as 1904. In 1953, control of the system was assumed by the New York City Transit Authority, which also took over the management of all metropolitan bus services.

Athens Metro
The Athens Metro in Greece is formed of an enlarged and upgraded suburban rail route, as well as two newer lines.

Amsterdam Metro / Light Rail Network by GVB
The largest single order for new-generation light rail vehicles was placed by the city of Amsterdam, Netherlands, as part of a major exercise to replace its antiquated fleet of 234 trams, which have become increasingly unreliable.

Guangzhou Metro
Guangzhou Metro is a light rail transit system in the city of Guanghzou (formerly known as Canton) in China. It is the fourth metro system to be introduced in Mainland China.

Light Rail System operated by Kolner-Verkehrs Betreibe (KVB)
Germany’s fourth most populous city, Köln (Cologne), 200km north of Frankfurt, is cut in two by the River Rhine.

Barcelona
Boosted by hosting the 1992 Olympic Games, Barcelona on Spain's north-east coast has continued to grow in reputation and

Madrid Metro
Spain's capital Madrid, home to over three million people, has one of the most extensive metro systems anywhere in the w

Bremen Light Rail System
Bremen in north-west Germany is one of the two urban subdivisions, the other being Bremerhaven, that make up the country's smallest land (state), Freie Hansestadt Bremen.

Bahn 2000
In the 1980s, rail corridors through the Swiss Alps were running near capacity, and traffic connections in the densely p

Karlsruhe Light / Heavy Rail
Close to the French border in south-west Germany, Karlsruhe in Baden-Württemberg was the first European city to implement track-sharing for light and heavy rail vehicles.

Manila Light Rail Extension operated by Metro Transit Corporation, Philippines
Development of light rail lines in the Philippine capital of Manila is being carried out with the aim of reducing acute road congestion on the city's busiest corridors by the year 2015.

Thalys
Thalys is a cross-border, high-speed passenger service that centres on the Brussels Midi station, linking the Belgian capital to Amsterdam, Paris and Cologne among others. The service is offered jointly by the Belgian, French, Dutch and German railways.

Bangkok Transit System Light Rail Route Extension
In an effort to provide a long-term solution to road congestion, Bangkok Metropolitan Administration (BMA) initiated studies on three separate mass transit systems during the late 20th century.

Norway Tilt Trains operated by Norwegian State Railways
Passenger train operations in Norway underwent a massive reorganisation during the late 1990s. The state-owned railway operator, NSB, made huge investments in new rolling stock and upgrading the infrastructure, as the country aimed to ensure that rail plays a growing role in meeting national transport needs.

Potsdam Light Rail
Potsdam, in the former East Germany, is the first European city to adopt the standard new tram design by that country's

Frankfurt-Köln
German Railways (Deutsche Bahn – DB) is now a major player in European high-speed rail travel with its Inter City

Shanghai Metro
The economic boom in Shanghai, which has a population of around 19 million and growing (U.N. estimates 23.4 million by 2

Swiss Tilting Trains
SBB/CFF/FFS, the operator of Switzerland's rail network has implemented major improvements in the services it offers to

Germany InterCity Express High Speed Rail Network operated by Deutsche Bahn
Although Deutsche Bundesbahn raised speeds and passenger standards with Class 103 hauled InterCity services from 1971, even with extensive track upgrading, 200km/h (124mph) would be the ceiling for reducing journey times.

Budapest Border Railway
The MAV (Hungarian Railways) line through the north of the country from Budapest to Hegyeshalom on the main corridor to Vienna has been extensively upgraded, with 86km (53 miles) of the route made suitable for 160km/h operation.

Boston ‘T’ Metro
Commuter lines radiating from Boston's two downtown stations are being extended. The Massachusetts Bay Transportation Au

X2000 Tilting Trains operated by Swedish State Railways (SJ), Sweden
Sweden's X2000 fleet of tilting trains has been a major catalyst for the renewed interest in this type of technology shown by the newly privatised British train operators investing in the final years up to the millennium.

AVE
Having first sanctioned a 160km/h (100mph) maximum speed as recently as 1986, Spain moved quickly to get high-speed rail
150W Power Supplies for Use in Industrial and Railway Applications
With the PCMAT150 S24, MTM Power® introduces a new generation of AC/DC modules which can be installed as a decentralised power supply for industrial and railway applications.
22 March 2021Railway DC/DC Converters as Defined by EMV 06
In addition to the existing certificates for the compliance of EMC characteristics according to EN 50121-3-2, MTM Power can now also prove the compliance with the technical regulation EMV 06, verification of the radio compatibility of rail vehicles with railway radiocommunication services, through certificates from an accredited laboratory.
2 October 2020New DC/DC Converters with 250W for Railway Applications
MTM Power® GmbH has developed the new DC/DC converter series PCMDS250 for universal applications in railway and vehicle technology.
25 June 2020Absolute Security for Extreme Conditions
10 February 2020MTM Power Offers Series PCMDS80 as Base Plate or Heat Sink Version
MTM Power's DC/DC converters PCMDS80 are specially designed as decentralised power supplies in vehicles and for supplying closed sub-systems in rolling stock applications.
12 July 2019MTM Power Presents New 400W DC/DC Converters at InnoTrans 2018
MTM Power's PCMD400 series has developed as a well-proven converter series made for applications in vehicle and railway technology in addition to rugged industrial markets.
17 August 2018DC / DC Converters with Base Plate Cooling Technology
MTM Power's PCMDNI300 series showcases a new range of DC / DC converters without galvanic isolation that can be installed as decentralised power supplies in vehicles and for supplying closed sub-systems in rolling stock.
22 June 2018For Operation At Contact Wire
MTM Power's has released the HVC series of DC/DC converters with 250W for railway applications.
18 May 2018DC/DC Converters with 14W for Railway Applications
MTM Power's PMGS/PCMGS14 series DC/DC converters have been developed for low-range power railway and transport applications.
12 April 2018150W Power Supplies for Use in Railway Applications
MTM Power®'s advanced AC/DC modules have been released with the introduction of the new PCMAT150 S24, as a decentralised power supply that can be used in railway and industry solutions.
16 February 2018DC/DC Converters for IP65 Applications
MTM Power's primary switched DC/DC converters PCMDS150WK-IP65 are specially designed for use in vehicle and rail industries, as well as industrial and telecommunication applications.
29 January 2018MTM Multi-Power Supply Systems
The DC/DC power supply systems of the series MPG from MTM Power, the specialist for innovative power supplies, are designed among others for the supply of electrical applications from DC mains for different applications in transportation, telecommunications and the charging of lead batteries during standby parallel operation.
17 November 2017MTM Power Launches 19in Plug-In Unit with 150W for Railway Applications
2 June 2017MTM Power Offers 30W DIN Rail DC / DC Converters
19 May 2017Series PCMDS80 as Base Plate or Head Sink Version
28 April 2017MTM Power’s New Representative for Switzerland
28 March 2017MTM Power Provides DC/DC Converters with 400W Output
23 January 2017MTM Power Launches New Catalogues And Website
14 October 2016300W DC/DC Converters with Base Plate Cooling (BPC) Technology Isolation
13 September 2016200W for IP67 Applications
1 August 2016MTM Power Offers Small 14W DC / DC Converters
12 July 2016MTM Power Re-Audited to Meet ISO Requirements
17 June 2016PMDS / PCMDS30 Series for Railway Applications
17 May 2016MTM Power Offers HVC with 250W in its DC / DC Converter Programme
26 February 2016DC / DC Converters for IP65 Applications
5 February 2016Absolutely Stressable: Multi-Power Supply Systems
9 October 2015Industrial DC/DC Converter with 6kV Isolation Voltage
25 September 201524V and 48V as Limited Power Source
5 August 2015Flat and Compact: The PCMDS60W Series
16 July 2015Expansion of the Board of Directors
2 July 2015Absolutely reliable: Series URC with 75W and 10:1 Input Range
11 June 2015Absolutely powerful: 19in Plug-In Unit with 150W for Railway Applications
22 May 2015Absolutely Waterproof – AC / DC Modules for the use in the Field Range
8 May 2015Absolutely Dustproof: DIN Rail 30W DC/DC Converters
27 March 2015Series PCMDS80 for Railway Applications
10 March 2015Absolutely Powerful: DC / DC Converters Series PCMD400
4 December 2014MTM Power Releases New Product Brochure
7 October 2014New: Small 14W DC/DC Converters from MTM Power
18 September 2014MTM Power Introduces PCMDS150WK-IP65 DC/DC Converters for IP65 Applications
4 August 2014European Patent Granted to MTM Power’s Thermoselective Vacuum Encapsulation
5 June 2014MTM Power Launches New Converter Series
23 May 2014MTM Power Offers DC/DC Converters with 110V Input in a Brick Case
28 April 2014MTM Power Wins Star Award at Siemens Ceremony
8 April 2014High-Voltage Converter for Operation at Contact Wire
6 March 2014MTM Power Corporate Video Now Online
17 October 2013Series PCMDS60W: Flat and Compact
9 September 2013Successful Re-Audit
2 July 2013MTM Power Supports Formula Student Team StarCraft
30 May 2013Absolutely Powerful: 19in Plug-In Unit with 150W for Railway Applications
26 April 2013Absolutely Waterproof AC/DC Modules for the Use in the Field Range
15 March 2013Series For Medical Applications Absolutely Qualified: CPAmed350
30 January 2013Absolutely Powerful: Series PCMDS80 for Railway Applications
11 January 2013Absolutely Dustproof: DIN Rail Module with 50W for Sophisticated Requirements
11 December 2012Point-of Load DC/DC Converters from MTM Power
16 November 2012High-Voltage Converter for Operation at Contact Wire
26 October 2012Absolutely Economic: Series PMAS/PCMAS75
12 October 2012MPG: Multi-Power Supply Systems with up to 2kW
27 September 2012MTM Power Invites You to InnoTrans 2012 (18-21 September, Berlin)
13 September 2012New Search Function on MTM Power GmbH Website
22 August 2012Powerful PMDS/PCMDS30 Series Railway Applications
6 August 2012Series for Medical Applications with Certification: PMmed / PCMmed
26 May 2011MTM Power Offers 30W in a 2in x 1in Case
19 May 2011Absolutely Cool: Modules for Use up to -55°C
20 April 2011Absolutely Economic: Series PMAS/PCMAS with 15W
10 April 2011Series PCMDS80 for Railway Applications
20 March 2011Absolutely Dustproof DIN Rail Module with 24W for Sophisticated Requirements
2 March 2011MTM Designs Dustproof 24W DIN Rail Module
2 March 2011MTM Power Presents MPG – Multi-Power Supply Systems
27 January 2011Absolutely Economic: Series PMAS / PCMAS with 48W
14 December 2010Absolutely Waterproof: PM-IP67A200 Now with UL-Certification
18 November 2010Absolutely Variable: the New 19in MTM Power Card MPK1
2 November 2010DC/DC Converter for Wind Energy Plants
17 October 2010Absolutely Reliable: High Voltage Converter for Operation at Contact Wire
2 September 2010The Absolutely Waterproof 100W Thermoselective Vacuum Encapsulation
17 August 2010The New Series PMAS/PCMAS with 60W
5 August 2010The Series URC With 75 W and 10:1 Input Range
21 July 2010MTM Power Re-Audited to the Requirements of the Standard DIN EN ISO 9000:2008
1 July 2010MTM Power Introduces New Space-Saving DC/DC Converters with 250W Output Power
23 May 2010MTM Power Introduces HSD DIN Rail DC/DC Dustproof Converters
6 May 2010MTM Power Releases Series PMmed/PCMmed100 Primary Switched Modules
25 April 2010The MPG Multi-Power Supply Systems
11 April 2010MTM Power Unveils Primary-Switched Modules for Vertical and Horizontal Mounting
21 March 2010New Product Short-Form Brochure Now Available Online
4 March 2010MTM Power Introduces New Microcontroller-Equipped Battery Chargers
18 February 2010MTM Power Introduces DC/DC Converters for IP65 Applications
21 January 2010New MTM Power Modules Withstand Temperatures Down to -55°C
16 December 2009MTM Power Introduces Universal Compact Power Supplies with AC and DC Input Ranges
11 November 2009MTM Power Releases 400W Primary Switched DC/DC Converters
22 October 2009MTM Power Releases New Decentralized Modules without Cabinets
6 October 2009MTM Power Supplies Microcontroller-Equipped Battery Chargers
17 September 2009MTM Power Introduces Primary Switched DC/DC Converters for DIN Rail Modules
1 September 2009Absolutely Reliable: 19ft DC/DC Converters for Automotive – SMM50
23 August 2009Absolutely Variable: 19in MTM Power Card MPK2
4 August 2009Absolutely Economic – AC/DC Modules with Reduced Stand-by Power
23 July 2009250W DC/DC High Voltage Converter for Operation at Contact Wire
24 June 2009Absolutely Reliable: DC/DC Converters Series WRC for Automotive Applications
24 June 2009Absolutely Safe: Thermoselective Vacuum Encapsulation
24 June 2009MTM Power Introduces New Multi-Power Supply Systems With Up To 1.2kW Power
18 February 2009Absolutely Dustproof: DIN Rail Module with 24W for Sophisticated Requirements
5 February 2009Absolutely Economic: Series PMAS/PCMAS with 60W
22 January 2009MTM Power Introduces New Primary Switched DC/DC Converters for Railway Applications
8 January 2009MTM Launches New DC/DC Power Converter
21 December 2008Series URC with 10:1 Input Range
4 August 2005Series WRC30 for Mobile Use
20 June 2005Flat and Compact: New Series PMDS/PCMDS60W
26 May 2004New High Voltage Converters Series HVC150
27 January 2004MTM Power Messtechnik Mellenbach GmbH (Headquarters)
- +49 3 67 05 6 88 0
- +49 3 67 05 6 10 49
- info@mtm-power.com
- keil@mtm-power.com
- www.mtm-power.com
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MTM Power Messtechnik Mellenbach GmbH
- +49 69 1 54 26 0
- +49 69 1 54 26 10
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MTM Power Messtechnik Mellenbach GmbH (Sales France)
- +33 4 74 58 83 66
- +49 69 1 54 26 10
- salzstein@mtm-power.com
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