On-Board Traction, Power & Safety Equipment

Due to a push to remove diesel-only trains from networks in order to meet climate goals, alternative traction technologies for rolling stock have become increasingly popular, notably battery-powered trains and hydrogen trains. This section covers the specialist components required for those traction technologies.

Auxiliary power systems provide electricity for non-propulsion functions on trains, such as lighting, HVAC, door operation, onboard information systems and catering equipment. These systems ensure reliable operation of all essential services that support passenger comfort and safety. This section covers suppliers of auxiliary power systems for electric and hybrid trains.

Diesel engines, alternators and generators provide the traction and onboard power for diesel locomotives and multiple units. This includes both main engines for propulsion and auxiliary systems for electrical power generation. This section features suppliers of diesel engines, alternators and generators used in rail applications.

Electronic components are essential parts of modern train control systems, contributing to functions such as monitoring, signalling, communication and diagnostics. This section covers components such as sensors, circuit boards, wiring assemblies, relays and other electronics used on board rolling stock.

EMC (Electromagnetic Compatibility) shielding protects sensitive on-board train components from electromagnetic interference. This is particularly critical for systems such as the European Train Control System (ETCS), the European Rail Traffic Management System (ERTMS), and other automatic train protection and signalling systems. Shielding ensures reliable performance by reducing the risk of signal disruption and maintaining system integrity in high-EMI rail environments.

Fire detection and suppression systems are critical safety components on board trains. These systems are designed to detect smoke, heat or flames and take immediate action to contain or extinguish fires. This section includes suppliers of fire detection sensors, fire extinguishing systems, control units and related safety technologies for rolling stock.

Fuel cells are used in hydrogen-powered trains to convert hydrogen into electricity for traction power. This section features suppliers that manufacture fuel cells for the rail sector or components such as hydrogen storage, power management systems and control electronics.

Fuel handling systems ensure the safe and efficient storage and transfer of fuel for diesel-powered rolling stock, while lubricants reduce friction and wear in mechanical components. This section includes suppliers of fuel systems, lubrication products and related equipment for rail applications.

Train HVAC systems regulate the interior climate of rolling stock to maintain passenger comfort and equipment performance across varying environmental conditions. This section features suppliers of heating, ventilation and air conditioning systems designed for rail applications, including components such as compressors, air filters, evaporators and control units.

Lighting and safety lighting systems on trains ensure visibility for passengers and crew, support safe movement throughout the vehicle and assist in emergency situations. This category includes interior and exterior lighting components such as LED modules, emergency lighting systems and control units, designed specifically for use on rolling stock.

On-board transformers, inverters and rectifiers are key components in the electrical systems of modern rolling stock. They help convert, manage and distribute electrical energy for traction, auxiliary systems and other on-board functions. This section includes suppliers who manufacture these components for use in electric and hybrid trains.

Pantographs and current collectors are essential for electric trains, enabling the transfer of power from overhead lines or third rail systems to the train’s on-board electrical systems. This section includes suppliers who manufacture and supply pantographs, third rail shoes and associated current collection technologies for rolling stock.

Traction cooling equipment ensures that on-board traction systems remain within safe operating temperatures during service. It includes components such as fans, heat exchangers, radiators and pumps designed to prevent overheating of traction converters, motors and power electronics. This section highlights suppliers of traction cooling systems and components for the rail sector.

Traction motors convert electrical energy into mechanical energy to drive rolling stock. They are a critical part of the propulsion system in electric and diesel-electric trains. This section features suppliers who manufacture, supply or refurbish traction motors for various types of rail vehicles.

Train batteries supply electrical power to on-board systems when the train is not connected to an external power source or to support systems during operation. They are essential for functions such as lighting, communication, control systems and emergency backup. This section includes suppliers of train batteries and related battery technologies for the rail sector.

Train converters, including inverters and rectifiers, are essential for managing electrical power on board. They transform energy between AC and DC formats or regulate voltage levels to ensure the correct functioning of traction systems, auxiliary equipment and control electronics. These components play a critical role in the safe and efficient operation of electric and hybrid rolling stock.

Train power converters manage the flow and type of electrical energy on board by converting alternating current (AC) to direct current (DC) or vice versa. These systems ensure stable and efficient power supply to traction systems, auxiliary equipment and safety-critical subsystems in electric and hybrid trains.

Train speedometers and safety components provide drivers with real-time speed data and support safe train operation. This section features suppliers of speed monitoring equipment and associated safety components used in the rail sector.