Cutting-Edge Power Supply Solutions for the Railway Industry from Mornsun Power

20th February 2024

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In the dynamic world of rail transportation, the demand for reliable and efficient electronic systems is paramount. Trains, subways, and trams are not just modes of transport; they are moving ecosystems requiring sophisticated electronic support. Mornsun Power, a leading name in industrial power supply solutions, and represented in the UK by Relec Electronics, stands at the forefront of this technological evolution.

The Backbone of Railway Electronics

The railway industry is a complex network of systems – from Passenger Information Systems (PIS) to emergency communication and operation monitoring. Products for each of these systems demands a power supply that is not only efficient but exceptionally reliable. Mornsun Power, understanding these needs, has developed a comprehensive range of converters from 6 watts to 400 watts. These products are designed to cater to all international traction voltage systems, including 24V, 36V, 52V, 72V, and 110V DC, ensuring global applicability and compliance.

Adherence to EN50155 Standards

Mornsun’s commitment to quality and safety is evident in its strict adherence to the EN50155 standards. These standards are critical for electronic equipment used in railway vehicles, focusing on aspects like input voltage range, safety, and overall power supply requirements. Mornsun’s latest power supplies boast an ultra-wide input voltage range of 14-160VDC, accommodating all the diverse needs of the global railway system.

Safety & Reliability

In an industry where safety cannot be compromised, Mornsun’s power supplies excel with reinforced insulation, achieving input-output isolation of 3000VAC and input-shell isolation of 2500VAC. This design is particularly beneficial for high-altitude and cold area applications, surpassing the standard 1500VAC insulation voltage requirements.

Innovative Design for Enhanced Performance

Mornsun’s UWTH1DxxQB-100WR3 series, a highlight in their railway power supply range, is a prime example of their level of innovation. They feature active hold-up time protection technology, ensuring 10ms hold-up time with a simple peripheral circuit and using as little as 470uF / 100V capacitors across the entire input range. The UWTH1DxxQB-100WR3 series is designed to operate efficiently across a wide temperature range of -40°C to +105°C, with low no-load consumption and compliance with EN62368, EN50155, and EN45545 standards.

Innovative Design for Enhanced Performance

Mornsun’s 6-400W Railway Power Supply series is a testament to their commitment to providing comprehensive solutions. These products meet the rigorous EN50155 certification standard and are equipped with features like wide voltage input and reinforced insulation. They are ideal for various applications, including PIS systems, HVAC control systems, and communication systems. Mornsun through their partners at Relec electronics, also offers customisation servicesto meet specific needs, simplifying the challenges of electronic systems in railway applications.

A Legacy
of Innovation

Mornsun Power, headquartered in China, has established itself as a leader in industrial power supply manufacturing over the past 25 years. With a focus on magnetic isolation technology and product research, Mornsun has developed a range of high-quality products, including AC/DC converters, DC/DC converters, and more. Their commitment to innovation is evident in their 1700+ patents for inventions. With subsidiaries in America and Germany and a distribution network in over 40 countries, Mornsun is a global powerhouse in power supply solutions.

Relec Electronics' logo

The UK Gateway to Mornsun's Excellence

In the UK, Relec Electronics proudly represents Mornsun Power, bringing their cutting-edge power supply solutions to the British railway industry. Relec’s expertise in the field, combined with Mornsun’s innovative products, ensures that the UK railway systems have access to some of the most reliable and efficient power supplies in the market.


Mornsun Power, through its comprehensive range of power supply products and its partnership with Relec Electronics in the UK, is setting new standards in the railway industry. Their commitment to safety, reliability, and innovation makes them an indispensable ally in the ever-evolving world of rail transportation.

Related Content

We are pleased to announce the general availability of the LMF-23BxxUH series of slimline, fanless ac dc converters from Mornsun, the latest addition to their high-efficiency LMF power supply series. Power ranges include fully certified units at 200W, 350W & 500W, with a 750W version due for release with full approvals later in 2023.

GET IN TOUCH TODAY – 01929 555700

At Relec Electronics, we are committed to empowering your applications with the right power conversion solutions. Leveraging our extensive knowledge and experience, we guide you through the selection process, ensuring that you have all the information you need to make the best choice for your specific needs.

In the ever-evolving world of power electronics, having a trusted partner like Relec Electronics by your side ensures that you are equipped with the right tools and knowledge to navigate the complexities of power conversion, driving your applications to new heights of performance and reliability. 

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