Solid-State Relays for Switching, Signalling and HVAC
With nearly 150 full-time employees in 4 countries on 3 continents, celduc® relais is a leading player in the global market for industrial automation and magnetic proximity sensors.
Founded and located in Sorbiers, we are recognised in nearly 60 countries with an established network of sales subsidiaries, specialist distributors and experienced representatives. At celduc® relais, we are the experts in solid state relays and magnetic sensors, and every year, we are proud to manufacture more than 1 million relays which are sold worldwide, helping to promote French industrial expertise and “100% made in France” quality.
Railway Industry – Our Solutions
Since 1964 celduc has been focused on manufacturing high-reliability switching and sensing devices. Our expertise in the development and production of Solid State Relays, Magnetic Sensors, Reed Relays and Switches for railway applications has given us access to major markets around the world. If our large selection of standard products does not meet your needs, we can discuss our custom solutions to help you optimize your design.
celduc Solid State Relays are widely used across the railway industry because of their ability to function in harsh environments (dust, shocks and vibrations). Fully electronic, SSRs have no mechanical moving parts, so they have a longer service life compared to EMRs.
In addition, their semiconductor based design makes them environmentally safe.
In this market segment, our Solid State Relays are used for:
- HVAC (Heating Ventilation Air Conditioning)
- SSRs are used for heating/cooling regulation in passenger & driver compartments in order to precisely control temperatures in the train.
- High Voltage Floor Heating
- High voltage DC Solid State Relays are used for controlling HV floor heaters supplied directly by the catenary.
- Compressors for Hydraulic or Pneumatic Braking
- Hydraulic and pneumatic braking systems contain pumps and compressors. Our SSRs are used for controlling these compressors.
- Wheel Greasing Compressor
- This system is designed to lubricate tram wheel flanges. The system works by applying a lubricant mixture to the contact area of the tram wheel flanges using compressed air. We offer a complete range of DC solid state relays used to control wheel greasing compressors.
- Switch Point Heating
- In areas where temperatures are regularly below freezing, railroad rail switch mechanisms can often malfunction. This, combined with an accumulation of snow and ice, can lead to railroad switch mechanism failures. The solution? Railroad switch heaters. Our SSRs are used to control these electric switch heaters.
- Railway Switch-Point Motors
- Motor control has always been a complex process. This is because a motor is, first and foremost, an inductive type of load, with high starting currents and over voltages generated at turn-off. This is why Solid State solutions are becoming more widely used to control motor loads.
celduc’s Solid-State-Relays offer the best possible features to meet all of the above-mentioned needs.
- Motor control has always been a complex process. This is because a motor is, first and foremost, an inductive type of load, with high starting currents and over voltages generated at turn-off. This is why Solid State solutions are becoming more widely used to control motor loads.
- Railway Signalling
- At celduc® relais we offer a wide range of Interface Solid State Relays which can be used to control lights in railway signalling installations.
Large temperature variations, shocks, vibrations, electromagnetic interferences, and more: electrical components for the railway industry must provide safe and reliable operation even under extreme conditions. celduc’s SSRs are known for their high reliability and long electrical life, making them ideal to guarantee a better reliability and durability of your railway installations!
We have been a reliable and experienced partner in the railway industry for many years. You can rely on our solutions!
