Railway Expertise
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15 Manufacturing
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DRIVEN BY INNOVATION
180+ Engineers & Technicians
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Application notes
Applications we serve
Passenger Rail Applications
Crouzet manufactures high-performance railway components designed for the safety and reliability of passenger trains.
Traction & Propulsion System
In passenger trains, the traction and propulsion system converts available electrical energy into tractive effort while ensuring safe and reliable power distribution throughout the vehicle. Regardless of operating conditions, its control devices must continue to perform reliably despite vibration, shock, temperature fluctuations, and demanding duty cycles. Crouzet enhances the reliability of these traction power systems through mechatronic solutions dedicated to switching, position sensing, and actuation functions. Microswitches, relays, DC motors, and customized solutions can be integrated into contactors, disconnectors, circuit breakers, grounding devices, and other traction-related equipment. By providing accurate position feedback and dependable operation, Crouzet solutions contribute to circuit protection, operational safety, and rolling stock availability.
Running Gear & Suspension System
The running gear and suspension system forms the mechanical interface between the train and the track. Bogies, axles, wheelsets, suspension components, and associated equipment must ensure guidance, stability, ride comfort, and the dynamic performance of rolling stock. Monitoring these systems is essential to maintaining safety and minimizing wear across a wide range of operating conditions. Crouzet’s sensing, measurement, and actuation technologies help monitor position, load, and mechanical status in environments exposed to shock, vibration, dust, and continuous mechanical stress. Sensors, position switches, structural monitoring solutions, and customized mechatronic components enable the integration of local control and diagnostic functions. Crouzet supports railway equipment manufacturers in developing robust, compact subassemblies designed to meet demanding availability requirements.
Braking System
The braking system of a passenger train must deliver precise deceleration, controlled stopping performance, and an immediate response in emergency situations. Every braking command relies on components capable of transmitting reliable information, even after extended periods of inactivity or under significant mechanical stress. Crouzet offers switching and sensing solutions designed for safety-critical railway braking functions. Its microswitches can be integrated into emergency brake handles, driver controls, and position or status feedback circuits. Their precise operation helps ensure rapid command execution and secure control-chain management. Combined with relays, sensors, and custom-engineered solutions, Crouzet technologies enable manufacturers and system integrators to improve the reliability, maintainability, and compliance of braking equipment.
Command & Control System
The command and control system coordinates the essential functions of a passenger train, including train operation, local automation, equipment supervision, and safety-status monitoring. The quality and reliability of the information received directly influence the decisions made by the driver and onboard control systems. Crouzet provides sensing, switching, automation, and actuation solutions that integrate seamlessly into these architectures. High-precision microswitches can detect the position of a driver controller, door system, or electrical switchgear, while logic controllers, relays, and counters manage or monitor local functions. Crouzet motors can also be used to actuate mechanisms requiring controlled and repeatable movement. Leveraging extensive customization expertise, Crouzet helps railway equipment manufacturers develop compact, robust, and reliable solutions tailored to the demands of modern rolling stock.
Electrical & Auxiliary System
The electrical and auxiliary systems supply and control all the on-board equipment that is not directly involved in propulsion: doors, lighting, toilets, access devices, local automations and numerous service functions. Their availability is essential for the daily operation of rolling stock, regardless of the type of network. Crouzet provides control, protection, switching and automation solutions adapted to these demanding electrical networks. Electromechanical or static relays, circuit breakers, microswitches, timers, counters and logic controllers make it possible to manage sequences, isolate a circuit, confirm a position or report a fault. Crouzet DC motors can, in parallel, ensure the compact actuation of various auxiliary equipment. Designed for harsh environments and available in standard or custom versions, these components contribute to service continuity, electrical safety and efficient maintenance.
Passenger Comfort & Interior System
Passenger comfort depends on far more than seating and interior design. It also relies on the smooth, quiet, and reliable operation of numerous onboard mechanisms. Inter-carriage doors, toilet systems, control devices, and service automation functions all contribute directly to the passenger experience. Crouzet offers DC motors, microswitches, pneumatic controls, and logic controllers specifically designed for railway applications. Compact drive solutions enable smooth and controlled door movement, while position sensors provide accurate status feedback. In toilet modules, logic controllers can coordinate functions and collect valuable maintenance data. With robust, compact, and customizable solutions, Crouzet helps equipment manufacturers create passenger environments that are more functional, reliable, and comfortable throughout daily operation.
Safety & Access System
Passenger safety and accessibility are fundamental requirements of every public transport train. Exterior and interior doors, retractable steps, access ramps, couplers, and emergency braking devices must operate with precision to protect passengers and operating personnel. Crouzet provides components designed to detect, control, and secure these mechanisms in demanding railway environments. Microswitches and position switches monitor opening, closing, locking, and deployment functions, even when exposed to dust, water, shock, and vibration. DC and brushless motors provide smooth and controlled movement for doors and access systems, while logic controllers manage local operating sequences. Crouzet solutions also support coupler-position monitoring and emergency brake actuation functions, helping manufacturers deliver safer, more reliable, and more accessible passenger transport systems.
Maintenance & Diagnostic System
Modern railway maintenance relies on reliable data to anticipate failures, reduce downtime, and extend the service life of rolling stock. Information related to position, operating cycles, loads, and equipment status plays a critical role in diagnostics and maintenance planning. Crouzet components contribute to this operational visibility through microswitches, sensors, counters, relays, and logic controllers capable of monitoring local functions and transmitting valuable diagnostic data. These solutions can confirm the status of doors, access ramps, electrical switchgear, and toilet modules, record operating cycles, and detect mechanical or electrical anomalies. Structural health monitoring solutions further support the tracking of key physical parameters. By combining robustness, precision, and customization capabilities, Crouzet helps operators and equipment manufacturers enhance preventive maintenance strategies, improve fleet availability, and reduce total cost of ownership.
Structure & Carbody
The structure and carbody form the train’s load-bearing and aerodynamic framework. They must withstand mechanical stresses, vibration, climate variations, and long operating cycles while integrating doors, access hatches, couplers, and numerous onboard systems. The reliability of the mechanical interfaces mounted on the carbody is essential to both operational safety and rolling stock availability. Crouzet provides expertise in position sensing, monitoring, switching, and actuation technologies that support these critical functions. Microswitches and limit switches can monitor the status of doors, locking mechanisms, access hatches, and couplers, while dedicated sensors help track key structural parameters. Compact drive solutions enable the integration of mobile mechanisms in space-constrained environments. Through robust components and customized developments, Crouzet helps manufacturers improve the reliability of carbody interfaces and enhance the long-term performance of rolling stock structures.
Non-passenger rail transport
Crouzet manufactures high-performance railway components designed for the safety and reliability of non-passenger trains.
Traction & Propulsion System
In freight trains and rail maintenance vehicles, the traction and propulsion system must deliver high and consistent power, whether hauling heavy loads, starting on gradients, or operating at low speeds. Electric and diesel-electric locomotives, maintenance equipment, and specialized rail vehicles frequently operate in harsh environments exposed to vibration, dust, temperature fluctuations, and intensive duty cycles. Crouzet supports the reliability of these traction systems with mechatronic components designed for switching, position sensing, and actuation functions. Microswitches, relays, DC motors, and customized solutions can be integrated into contactors, disconnectors, circuit breakers, grounding devices, and other traction-related equipment. By ensuring accurate position detection and reliable mechanism control, Crouzet solutions help protect electrical circuits, improve operational safety, and maximize railway vehicle availability.
Running Gear & Suspension System
The running gear and suspension system ensures guidance, stability, and the transmission of forces between the rail vehicle and the track. In freight trains, locomotives, specialized wagons, and rail maintenance vehicles, bogies, axles, wheels, and suspension systems must withstand heavy loads, extended operating periods, and, in some cases, degraded track conditions. Continuous monitoring helps prevent premature wear, overheating, misalignment, and mechanical failures that could result in costly downtime. Crouzet’s sensing, measurement, and actuation technologies can be used to monitor position, load, and mechanical condition in environments exposed to shock, vibration, humidity, and dust. Sensors, position switches, structural monitoring solutions, and customized mechatronic components support the integration of local control and diagnostic functions. Crouzet helps equipment manufacturers develop robust and compact assemblies tailored to the requirements of freight and railway maintenance applications.
Braking System
The command and control system coordinates the operation, supervision, and automation functions of freight trains, locomotives, and rail maintenance vehicles. It centralizes data from onboard equipment and enables the driver or automated control system to manage traction, braking, safety, and operational functions. In maintenance vehicles, it may also control hydraulic tools, mobile platforms, cranes, conveyors, and inspection equipment. Crouzet provides sensing, switching, automation, and actuation solutions designed for these demanding architectures. Precision microswitches can confirm the position of a control lever, access hatch, or electrical switchgear, while logic controllers, relays, counters, and timers manage or monitor local operating sequences. Crouzet motors also provide reliable actuation for mechanisms requiring controlled movement. Through its customization capabilities, Crouzet supports the development of robust solutions engineered for harsh railway operating environments.
Command & Control System
The command and control system coordinates the essential functions of a passenger train, including train operation, local automation, equipment supervision, and safety-status monitoring. The quality and reliability of the information received directly influence the decisions made by the driver and onboard control systems. Crouzet provides sensing, switching, automation, and actuation solutions that integrate seamlessly into these architectures. High-precision microswitches can detect the position of a driver controller, door system, or electrical switchgear, while logic controllers, relays, and counters manage or monitor local functions. Crouzet motors can also be used to actuate mechanisms requiring controlled and repeatable movement. Leveraging extensive customization expertise, Crouzet helps railway equipment manufacturers develop compact, robust, and reliable solutions tailored to the demands of modern rolling stock.
Electrical & Auxiliary System
Electrical and auxiliary systems power on-board equipment that is not directly involved in propulsion, but is still essential for the operation of railway equipment. In a freight locomotive, a work train or a maintenance vehicle, they can take care of lighting, ventilation, signalling devices, construction tools, hydraulic systems, communication equipment and local automation. Their reliability is essential to avoid mission interruptions and ensure the safety of operators. Crouzet offers control, protection, switching and automation solutions adapted to these demanding networks. Electromechanical or static relays, circuit breakers, microswitches, timers, counters and logic controllers make it possible to manage sequences, isolate a circuit, confirm a position or report a fault. Crouzet DC motors also ensure the compact actuation of various auxiliary equipment. Robust and customizable, these components contribute to continuity of service and efficient maintenance.
Comfort & Interior System
In non-passenger rail vehicles, interior systems are primarily designed to support drivers, technicians, and maintenance personnel. Driver cabs, control stations, rest areas, and technical compartments must provide a functional, ergonomic, and reliable working environment, even during extended missions or challenging operating conditions. In freight locomotives, rail maintenance vehicles, and work trains, the reliable operation of powered seats, blinds, partitions, interior doors, ventilation systems, and control equipment directly contributes to operator efficiency and safety. Crouzet offers DC motors, microswitches, pneumatic controls, and logic controllers tailored to these applications. Compact drive systems provide reliable actuation of onboard mechanisms, while position sensors deliver precise status feedback. Through robust, quiet, space-efficient, and customizable solutions, Crouzet helps equipment manufacturers design practical and dependable workspaces suited to demanding railway operations.
Safety & Access System
Safety and access systems protect drivers, maintenance personnel, and operational teams working on and around freight trains and rail maintenance vehicles. Cab doors, access hatches, steps, platforms, ladders, walkways, couplers, and emergency stop devices must be monitored and controlled with precision to prevent unsafe operations. In rail maintenance equipment, these functions become particularly critical when mobile machinery, cranes, or work tools are deployed close to the track. Crouzet provides components engineered to detect, control, and secure these mechanisms in environments exposed to dust, water, shock, and vibration. Microswitches and position switches monitor opening, closing, locking, and deployment status, while DC and brushless motors enable smooth, controlled movement. Logic controllers manage local operating sequences and safety functions. By ensuring reliable monitoring and actuation, Crouzet helps improve the safety of access systems, maintenance activities, and coupling operations.
Maintenance & Diagnostic System
Availability is a critical requirement for freight trains, locomotives, and rail maintenance vehicles, where unexpected downtime can disrupt logistics operations or delay infrastructure maintenance activities. Diagnostic systems must quickly identify faults, monitor equipment wear, and support effective maintenance planning. Information related to position, operating cycles, loads, and equipment condition provides valuable insight into vehicle performance and health. Crouzet enhances this visibility through microswitches, sensors, counters, relays, and logic controllers designed to monitor local functions and deliver actionable data. These components can verify the status of access hatches, couplers, electrical switchgear, work platforms, and maintenance equipment while recording operating cycles and detecting mechanical or electrical faults. By combining durability, precision, and customization, Crouzet helps operators and equipment manufacturers strengthen predictive maintenance programs, reduce unplanned downtime, and optimize lifecycle costs.
Structure & Carbody
The structure and carbody form the load-bearing framework of rail vehicles and must withstand the forces generated by transported loads, coupling operations, vibration, and challenging environmental conditions. In freight trains, specialized wagons, locomotives, and rail maintenance vehicles, they also incorporate a wide range of functional systems, including loading doors, access hatches, protective covers, work platforms, walkways, locking systems, and handling mechanisms. The reliability of these interfaces is essential to protect cargo, ensure operator safety, and maintain vehicle availability. Crouzet provides expertise in position sensing, switching, monitoring, and actuation technologies for these applications. Microswitches and limit switches can monitor the status of loading doors, hatches, locking mechanisms, and couplers, while dedicated sensors support the monitoring of structural parameters. Compact drive solutions simplify the integration of mobile mechanisms where installation space is limited. By combining robust products with customization capabilities, Crouzet helps manufacturers enhance the safety, reliability, and durability of railway vehicle structures.
Rail infrastructure
Crouzet manufactures high-performance railway components designed for the safety and reliability of railway infrastructure.
Traction & Propulsion System
Beyond rolling stock applications, infrastructure systems responsible for controlling and securing train movements rely on dependable monitoring and safety functions. These applications include signalling systems, level crossings, track switches, platform screen doors, and certain rail maintenance installations. They require reliable position detection, fast switching, and rigorously controlled safety sequences. Crouzet offers microswitches, position switches, solid-state and electromechanical relays, logic controllers, and customized components designed for demanding railway environments. These solutions can confirm barrier closure, mechanism locking, safety circuit status, or emergency stop activation. By ensuring accurate feedback and interrupting control commands when abnormal conditions are detected, Crouzet solutions contribute to the safety, compliance, and availability of railway infrastructure.
Command & Control System
The command and control system is the operational backbone of railway infrastructure. It coordinates signalling systems, track switches, level crossings, platform screen doors, and numerous automated systems deployed in stations, tunnels, depots, and technical facilities. Its role is to supervise equipment, execute programmed operating sequences, and provide operators with reliable information. Crouzet supplies solid-state and hermetically sealed relays, microswitches, logic controllers, timers, counters, and sensing solutions designed for these critical applications. These components can confirm switch positions, control automatic barriers, monitor platform doors, and manage local automation functions. Their resistance to vibration, temperature fluctuations, and intensive operating cycles contributes to long-term service continuity. Through its customization expertise, Crouzet supports system integrators in developing precise, compact, and durable railway command-and-control systems.
Electrical & Auxiliary System
Electrical and auxiliary systems supply the fixed equipment essential to the operation of a railway network, apart from train traction. They cover platform lighting, tunnel ventilation and technical rooms, pumps, automatic doors, signage, control cabinets and safety devices. Their availability determines the safety of the facilities and the quality of service offered to operators and passengers alike. Crouzet offers solid state or electromechanical relays, circuit breakers, control relays, timers, counters and logic controllers to control loads, protect circuits, monitor power supplies and report faults. Microswitches and compact motors can also be used to detect or operate auxiliary mechanisms. Adaptable to the constraints of the railway industry, Crouzet solutions help to make electricity distribution more reliable, reduce unplanned downtime and simplify infrastructure maintenance.
Safety & Access System
Safety and access systems protect passengers, personnel, and critical infrastructure across stations, level crossings, depots, and technical facilities. Platform screen doors, automatic barriers, fare-control gates, service doors, and emergency stop systems must prevent unauthorized access while maintaining safe and efficient passenger flow. Crouzet supplies brushless and DC motors, microswitches, position switches, relays, and logic controllers designed to monitor, control, and secure these applications. Motor solutions provide fast and controlled movement, while sensors verify opening, closing, and locking status. Relays and automation systems can manage safety sequences, report faults, and safely stop mechanisms when abnormal conditions are detected. Through robust and customizable solutions, Crouzet helps strengthen access control, platform protection, and railway infrastructure safety, even in demanding operating environments.
Maintenance & Diagnostic System
Maintenance and diagnostics are essential to maintaining railway infrastructure availability and minimizing service disruptions. Track switches, platform screen doors, level crossings, electrical cabinets, rail assets, and station equipment must be continuously monitored to detect deviations before they develop into critical failures. Crouzet offers microswitches, load sensors, structural monitoring solutions, counters, control relays, and logic controllers capable of collecting valuable information on asset condition and utilization. These solutions can confirm position status, measure mechanical loads, record operating cycles, log operational data, and generate alarms when abnormal conditions are detected. By enabling remote diagnostics, preventive maintenance, and more effective intervention planning, they support a more resilient railway network. Combining precision, robustness, and customization expertise, Crouzet helps infrastructure managers and equipment manufacturers extend asset life, reduce failures, and optimize maintenance costs.
Products & Services
Driven by innovation, our experts are focused on designing and delivering the right product for the right application.
Custom products designed
for your applications
60+ years of railway qualification expertise: when your innovation process needs more than high quality standard products.
Design and adaptation agility at your service: we can answer your specific needs by offering you the best customised solution, a long term partnership commitment and a multidisciplinary team dedicated to your program.
High quality and efficient manufacturing
Compliance with qualification tests
Our renowned railway customers
We manufacture high value added components all along the railway supply chain from sub-tier manufacturers to railway operators
Crouzet through the years.
Crouzet is founded
Crouzet microswitches support the pneumatic door control systems used on TGV trains.
Crouzet programmable logic controllers are deployed in Paris Metro access control systems.
Geared DC motors for on-board circuit breakers
The PBX microswitch receives railway certification.
Crouzet launches a range of limit switches for railway door control applications.
Crouzet supplies geared motors for New York City Subway access doors.
Full rolling-stock and railway infrastructure applications
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