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Promoting Young Talent through the Germany Scholarship Program

On November 19, 2025, the time had come once again: during a festive ceremony at the University of Wuppertal, this year’s Germany Scholarships were awarded. A total of 81 sponsors from the region are supporting students this year who stand out not only for their excellent academic achievements but also for their social commitment, social responsibility or special personal accomplishments. The University of Wuppertal has been successfully involved in the Germany Scholarship program for 15 years, and REO AG has been one of its active sponsors for eight years now – driven by the goal of supporting tomorrow’s skilled professionals and leaders and thereby strengthening the regional economy in the long term. For the third year in a row, REO is supporting Mr. Marius Benedikt Breuer, who, after successfully completing his bachelor’s degree in electrical engineering, is now pursuing his master’s studies with great dedication. We warmly congratulate Mr. Breuer and look forward to continuing to accompanying him on his path in the coming year. Photo: ©Paco_Calderon

REO AG celebrates its 100th anniversary – innovation based on tradition since 1925

This year, REO AG marks a century of success. What began in 1925 with the motto “Reklame Erster Ordnung” (First-class advertising) and a small factory producing lighting solutions for cinemas and advertising media has grown to an internationally operating company with locations in Europe, the USA and Asia. “We are proud of what we have achieved over the past 100 years and grateful to the people who have accompanied us on this journey. As a family-owned business, we bear a special responsibility to our employees, customers, and locations in the international competition. At the same time, we see the coming decades as an opportunity to drive forward new technologies and make our contribution to the energy transition and a sustainable industry, ” says Philip Twellsieck, Chairman of the Executive Board. Over the decades, REO has evolved into a leading manufacturer of inductive, resistive and electronic components and system solutions. By the 1950s, the company was supplying its first major industrial customers, and from the 1970s onwards, international subsidiaries were established. Today, its core competencies include innovative products developed and manufactured in Germany to the highest quality standards for railway technology, medical and drive technology, industrial automation and e-mobility. As a family-owned company now in its fourth generation, REO combines tradition with a forward-looking approach: quality, innovation, and sustainability continue to shape its philosophy. Anniversary celebration in Berlin The 100th anniversary was celebrated with a ceremony at the Estrel Hotel in Berlin. In addition to employees from Germany, numerous colleagues from the company’s international branches attended the celebration. It was a unique opportunity for a “family reunion”. A gala dinner, the ‘Stars in Concert’ show and other surprises provided an exceptional experience that highlighted the team spirit and unity within the company. Looking to the future Even after 100 years, REO AG remains focused on the future: With investments in research and development, sustainable production processes, and cutting-edge digital solutions, the company aims to continue setting new standards. The focus is on energy-efficient products, groundbreaking system solutions and close partnerships with customers worldwide. Pictres of the News Downloade the Pictures: Link About REO AG REO AG, headquartered in Solingen, Germany, is an internationally active family-owned company. Since 1925, REO has been developing and manufacturing innovative components and systems for various industries—from railway technology and medical technology to energy and drive technology. Further information can be found at: www.reo-ag.com/ Press contact:REO AGBrühler Straße 100D-42657 SolingenTel.: +49 (0)212 8804-0E-Mail: presse@reo.de

REO supports Sucht- und Jugendhilfe e.V.

As a responsible company, the protection and support of young people is especially close to our hearts. That´s why we have been involved in various projects to promote young talent for many years. This year, we are supporting Sucht- und Jugendhilfe e.V., a non-profit organization dedicated to raising awareness about addiction and its dangers. The association aims to encourage young people to inform themselves about addiction early on and to actively support schools in their prevention efforts. Today, addiction affects far more than just illegal substances – synthetic drugs, media addiction, eating disorders, as well as the consumption of alcohol, tobacco and painkillers are now among the challenges facing young people and those around them. Our support enables us to provide the Höhscheid comprehensive school in Solingen with free educational brochures every month. These guides are specifically aimed at parents, teachers and trainers to support them in the important task of education and prevention. We are delighted to be able to contribute to raising early awareness and actively protecting young people from the dangers of addiction.

REO supports the Green Lion Racing Team at the University of Wuppertal

REO AG is a sponsor of the Green Lion Racing Team at the University of Wuppertal. The interdisciplinary student team is developing its first fully electric racing car to paticipate in the international Formula Student competition. The aim of Formula Student is to design a vehicle in accordance with the official regulations, from concept development and manufacturing to participation on the race track. The entire process is governed by strict rules. With their prototypes, the students compete against each other in three static and five dynamic disciplines at international events. This initiative not only promotes the development of sustainable technologies, but also offers students a valuable platform to expand their skills in engineering and automotive technology. We are proud to contribute through our sponsorship and wish the team great success in the upcoming races! For more information: www.glracing.de and www.konstruktion.uni-wuppertal.de/de/lehrstuhl/formula-student/

Railway Transformer NTT 400 D

Onboard power supply transformer (Roof mounted) Description The REO transformer NTT 400 D is designed for onboard power supplies, which are fed by the auxiliary converter. The transformer NTT 400 D is the complete, ready to use-unit with transformer, mounting frame and housing. The transformer is used to adapt the voltage and for galvanic isolation of the pulse-width modulated DC link voltage and the consumers of the vehicle electrical system. An appropriate sinusoidal filter must be connected between the transformer and the inverter. The secondary-side load of the isolating transformer can be switching devices, rotating machines, resistive loads and semiconductor converter devices. The transformers are designed for the use of vehicles in the AC or DC grid (in inverter mode) in containers. This guarantees that transformers from REO are optimally designed for your application. Maximum service life, cost/benefit optimization and safety are the focal points of our development work. Customer-specific components On-board power transformers can be customized. Are you interested in this product? Please contact us! In addition to standardized components for use in converters, REO offers customer-specific products – as individual components or as a complete solution in a container. The benchmark in railroad technology is the availability and safety of passengers. Here, REO offers special solutions that are developed step by step in close cooperation with the customer. Advantages Vibration and shock tested according to DIN 61373 Cat 1 Class B High efficiency Low idling losses Reduced field scattering Low noise Reduced weight High mechanical resistance Natural Cooling Pollution degree PD4 Various performance classes Technical specification Rated power: 10000 – 30000 VA Input voltage: 3×440 V Power. 10 – 30 kVA Rated voltage Primary: Rated voltage: (Normal operation): 3×440 Veff 60 Hz Rated voltage: (external power supply): 3×400 Veff 50 Hz Rated voltage: (reduced operation): 3×345 Veff 47 Hz Secondary: Voltage: 3×230 Veff Operating temperature: -25 ° C … + 55 ° C (optional + 75 ° C) Humidity: max 95% Pollution degree: PD4 Insulation class: F/H Test voltage: EN 50124 / EN 60310 Vibration resistance: Cat.1 class A/B acc. to EN61373 Voltages: 24 / 42 / 110 / 230 / 400 / 690 Volt (Optional) Switching group: Optional Type Performance [kVA] Total weight [kg] Copper weight [kg] Efficiency [%] UK [%]* NTT 400 U/15.0 15.0 96 29 97.1 2.6 NTT 400 U/20.0 20.0 126 36 97.4 2.3 NTT 400 U/25.0 25.0 150 51 97.5 2.5 NTT 400 U/30.0 30.0 175 57 97.8 2.1 DIMENSIONS IN MM Type L B H N1 N2 N3 D Mass [kg] NTT 400 U/15.0 1800 581 376 1717 363 65 13×26 192 NTT 400 U/20.0 1800 581 376 1717 363 65 13×26 219 NTT 400 U/25.0 1800 581 376 1717 363 65 13×26 247 NTT 400 U/30.0 1800 581 376 1717 363 65 13×26 267

Air Choke Ld 220

Air choke with aluminium copper/disc winding Description Air reactors are used when a particularly high linearity is required. By its relatively simple structure, they are not only compact, but also very stable. With our expertise, REO air chokes maintain their full functionality even under extreme conditions. With our expertise, the REO air reactors perform to the required standard, even in the most arduous conditions. REO Mix & Match principle With REO Mix & Match you can choose from a wide range of of options – combine the various options in order to always get the best product for your application. REO is able to offer different designs and winding techniques, a variety of conductor materials and structures. Depending on the specific requirements, we are able to produce an optimal solution by combining these parameters to provide the perfect solution. Optional Layer winding/Disc winding Aluminium, Copper or aluminium + copper Protections: Paint coating, protective coating, housing or REO Xtreme Cooling fan/unit Sensors: Switch NO / NC, PT100, NTC, PTC Advantages No saturation Wide range of material selection Special protective coating High linearity L (i) Very good mechanical strength No hysteresis Optimal weight by forced air cooling Directional air flow through GRP conduits Very efficient liquid cooling option (waveguide) Can be used almost anywhere PTC Technical specification Frequency of the current: DC and AC Tolerances: + 10 / – 10 %, + 5 / – 5 % Taps: By default, no taps (available on request) Insulation: F or H Cooling method and cooling liquid according to IEC 60310: AN, AF or WF Test voltage: up to 12kV 60s 50Hz, up to 25kV 1,2/50µs Mounting: Suspended, vertical or horizontal Mechanical strength, mechanical simulation (FEM): EN 12663 Shock – and vibration stress: IEC 61373 Kat. 1 Kl. B Rated current: 200 – 700 A Inductance: 0,5 – 4 mH Type Inductance (mH) Cooling 3 m/s Cooling 5 m/s Cooling 8 m/s I [A] magn. Energy [J] P [kVA] at 20°C I [A] magn. Energy [J] P [kVA] at 20°C I [A] magn. Energy [J] P [kVA] at 20°C LD 220/200/0,5 0,5 200 10 0,7 250 15,6 1,1 300 22,5 1,6 LD 220/400/0,5 0,5 400 40 1,8 500 62,5 2,9 600 90 4,2 LD 220/700/0,5 0,5 700 122,5 2,4 500 62,5 2,9 600 90 4,2 LD 220/200/1 1 200 20 1,1 250 31,3 1,7 300 45 2,4 LD 220/400/1 1 400 80 2,8 500 125 4,4 600 180 6,3 LD 220/700/1 1 700 245 3,8 850 361,3 5,5 100 5 7,7 LD 220/200/2 2 200 40 1,7 250 62,5 2,6 300 90 3,7 LD 220/400/2 2 400 160 4,4 500 250 6,9 600 360 10 LD 220/700/2 2 700 490 5,7 850 722,5 8,4 1000 1000 11,6 LD 220/200/4 4 200 80 2,5 250 125 3,9 300 180 5,6 LD 220/400/4 4 400 320 6,9 500 500 10,8 600 720 15,6 LD 220/700/4 4 700 980 8,7 850 1445 12,8 1000 2000 17,7 Dimensions in mm Type B [mm] H [mm] T [mm] Cooper [kg] Weight [g] LD 220/200/0,5 250 250 180 11,4 16 LD 220/400/0,5 350 350 180 20,9 29 LD 220/700/0,5 400 400 370 74,8 86 LD 220/200/1 300 300 220 17,6 33 LD 220/400/1 400 400 220 32,5 37 LD 220/700/1 400 400 450 116 124 LD 220/200/2 350 350 230 26,7 40 LD 220/400/2 400 400 310 51,4 87 LD 220/700/2 450 450 490 175 182 LD 220/200/4 400 400 250 40,2 54 LD 220/400/4 420 420 400 80,3 97 LD 220/700/4 500 500 570 267 301