Cincon Railway & Industrial Power

EN 50155 is the European standard for electronic equipment used on railway rolling stock. It specifies requirements for: Input voltage: Nominal voltages (24V, 48V, 72V, 96V, 110V)

Voltage variations (0.7x to 1.25x nominal)

Transients (up to 1.4x nominal for 1s)

Temperature: Operating range typically -40°C to +70°C or +85°C

Storage down to -40°C

Humidity: Operation up to 95% RH non-condensing

Vibration and shock: Random vibration 5-150Hz

Shock 50g, 11ms

EMC: Immunity to railway electromagnetic environment

Emissions control to prevent interference. Certification to EN 50155 ensures: Reliable operation in railway conditions

Compliance with railway operator requirements

Safety in critical applications

Interoperability across European railways. Cincon railway converters are fully tested and certified to EN 50155, simplifying approval for railway projects. Contact our FAE team for railway certification documentation.

EN 50155 certification required for railway. Cincon converters fully certified. Contact us for documentation.

Railway applications require wide input voltage ranges to accommodate: Nominal voltages: 24V (light rail, trams)

48V (some regional trains)

72V (industrial vehicles)

96V (some metros)

110V (mainline trains, most common). Voltage variations per EN 50155: Continuous operation: 0.7x to 1.25x nominal

Temporary operation: 0.6x for 0.1s, 1.4x for 1s

For 110V nominal: 77V to 137.5V continuous

66V to 154V temporary. Cincon railway converters provide: Ultra-wide 14.4-154VDC range

Covers all nominal voltages (24V-110V)

Handles all variations including transients

Single converter works across multiple systems. This eliminates: Different converters for different voltages

Inventory complexity

Voltage selection switches

Compatibility issues. For railway projects, verify the nominal voltage and required range. Contact our FAE team for input voltage selection and railway system design.

14.4-154V range covers all railway voltages. Single converter for all systems. Contact us for selection.

Railway converters undergo rigorous environmental testing per EN 50155: Temperature tests: Cold start and operation at -40°C

High temperature operation at +70°C or +85°C

Thermal cycling between extremes

Temperature shock testing. Humidity tests: Damp heat at 95% RH, 40°C

Condensation resistance

Mold growth resistance. Vibration and shock: Random vibration 5-150Hz, 1.0g RMS

Sine vibration for resonance detection

Shock 50g, 11ms half-sine

Bump testing for repeated shock. Altitude: Operation up to 3000m

Reduced ratings above 3000m. Contamination: Dust and sand resistance

Salt mist for coastal applications

Chemical resistance. EMC tests: EN 50121-3-2 immunity and emissions

ESD, surge, burst immunity

Radiated and conducted emissions. These tests ensure reliable operation in harsh railway environments. Cincon railway converters pass all required tests. Contact our FAE team for test reports and environmental specifications.

All Cincon railway converters pass EN 50155 environmental tests. Contact us for test reports.

Railway and industrial grade converters differ in several aspects: Input voltage: Railway: Ultra-wide 14.4-154V for multiple battery systems

Industrial: Standard ranges (9-36V, 18-75V) for specific voltages. Certification: Railway: EN 50155, EN 50121-3-2 specifically

Industrial: General industrial standards. Environmental: Railway: More severe vibration, shock, temperature

Industrial: Standard industrial environments. Reliability: Railway: Higher MTBF for critical applications

Industrial: Standard reliability for general use. Cost: Railway: Higher cost due to ruggedization

Industrial: Lower cost for standard applications. Applications: Railway: Rolling stock, signaling, platform systems

Industrial: Factory automation, process control. For railway applications, always use EN 50155 certified converters. For industrial applications, railway grade can be used but may be over-specified. Contact our FAE team for grade selection guidance.

Use railway grade for EN 50155 compliance. Use industrial grade for standard applications. Contact us for selection.

Railway systems experience voltage transients that must be handled: Transient types: Load dump: Sudden load removal causes voltage spike

Jump start: 24V system started from 110V

Interruption: Brief power loss during switching

Surge: Lightning or switching transients. EN 50155 requirements: 1.4x nominal for 1 second (154V for 110V system)

0.6x nominal for 0.1 second (66V for 110V system)

Surge protection for external transients. Cincon railway converters: Handle all EN 50155 transients internally

No external protection needed for standard transients

Surge protection may be needed for severe lightning. For system design: Select converter with appropriate transient rating

Add external TVS for severe environments

Use input filtering for noise reduction

Consider hold-up capacitors for interruptions. The ultra-wide input range (14.4-154V) accommodates all standard transients. Contact our FAE team for transient protection design.

Cincon converters handle standard transients. Add TVS for severe environments. Contact us for protection design.