Railway Power System Solution

Railway Application

Description

Rugged power solution for railway applications meeting EN 50155 standards with wide input range and high reliability

Core Advantages

EN 50155 certified for railway applications
Wide input voltage range covers all railway standards
High vibration and shock resistance
Fire and smoke safety compliance
Long lifetime for railway equipment

Recommended Bill of Materials (BOM)

Item Part Number Description Quantity Datasheet
1 300W railway-qualified AC-DC power supply with extended temperature 1 📄 Download
2 50W DC-DC converter for battery backup integration 1 📄 Download
3 Industrial EMI filter for EMC compliance 1 📄 Download

Applications

Rolling stock
Train control systems
Passenger information systems
CCTV surveillance
Communication systems

Technical Specifications

Input Voltage Range
24VDC to 110VDC (railway standard)
Output Power
300W continuous
Operating Temperature
-40°C to +70°C
Vibration Resistance
EN 61373 Category 1 Class B
Shock Resistance
50 m/s² per EN 61373
Isolation
3000VAC input to output
Fire Safety
EN 45545-2 HL3 compliant
E M C
EN 50121-3-2 compliant

Customer Success Stories

European Railway Operator

|

Challenge

Needed reliable power for new train passenger information system with EN 50155 compliance

Solution

Implemented Cosel Railway Power System with redundant configuration

Results

Zero failures in 500+ train deployments

Asian Metro System

|

Challenge

Required wide input range power for metro cars with 110V and 24V systems

Solution

Deployed Cosel railway power supplies with universal input modules

Results

Passed all railway certification requirements

FAE Expert Insights

T

Takeshi Yamamoto

Senior FAE - Railway Systems

15+ years

Professional Insights

Our FAE team has extensive experience deploying railway power systems across multiple continents. The key to railway power design is understanding the specific standards and environmental challenges. EN 50155 compliance is mandatory, but the interpretation varies by region. European applications emphasize EN 45545 fire safety, while Asian markets focus on voltage range flexibility. Always verify the specific railway class (S1, S2, S3, S4) for voltage interruption requirements. We recommend redundant configurations for train control and safety systems. Thermal management is critical - railway equipment often experiences -40°C to +70°C extremes. Proper derating and component selection ensure the 20-30 year lifetime railway operators expect. Our implementation framework includes standards verification, environmental analysis, redundancy planning, EMC testing, and field validation.

Key Takeaways

  • Verify specific railway standards by region
  • Plan redundancy for critical systems
  • Consider extreme temperature ranges
  • Ensure fire safety compliance
  • Validate through comprehensive testing

Decision Framework

Steps:
  1. Identify applicable railway standards
  2. Determine voltage class and range
  3. Assess environmental conditions
  4. Plan redundancy for critical functions
  5. Execute EMC and safety testing

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Contact Us Now

Frequently Asked Questions

What railway standards does this solution meet?

The Railway Power System Solution meets comprehensive railway standards: EN 50155 - Railway applications electronic equipment

EN 50121-3-2 - EMC for rolling stock

EN 61373 - Shock and vibration testing

EN 45545 - Fire and smoke safety. These certifications ensure reliable operation in railway environments including temperature extremes, high vibration, voltage transients, and electromagnetic interference. The solution has been tested and validated for rolling stock applications worldwide.

Verify specific railway standards required for your project. Contact us for certification documentation.

What is the input voltage range for railway applications?

Railway applications require wide input voltage ranges due to varying battery and supply conditions: Nominal 24VDC systems: 16.8V to 33.6V (0.7-1.4x nominal)

Nominal 72VDC systems: 50.4V to 100.8V

Nominal 110VDC systems: 77V to 154V. The solution supports these ranges with automatic adjustment. Additional requirements include voltage interruptions per EN 50155 (10ms class S2, 20ms class S3, 30ms class S4) and surge withstand (3.5x nominal for 20ms). Contact our FAE team for specific railway voltage requirements.

Confirm nominal voltage and class requirements for your railway application. Contact us for voltage analysis.

How does the solution handle railway vibration requirements?

Railway vibration requirements per EN 61373 are stringent: Category 1 Class B for body-mounted equipment includes 5-150Hz random vibration at 5.72 m/s² RMS and shock testing at 50 m/s². The solution addresses these through: Rugged mechanical design with reinforced mounting

Component selection for high-vibration environments

Conformal coating for PCB protection

Secure terminal connections

Vibration-tested enclosures. Testing includes sinusoidal sweep, random vibration, and mechanical shock. The design ensures reliable operation over the 30-year railway equipment lifetime. Contact our FAE team for vibration test reports.

Solution meets EN 61373 Category 1 Class B. Contact us for vibration test documentation.

What fire and smoke compliance does the solution provide?

Railway fire and smoke safety per EN 45545 is critical for passenger safety: The solution meets EN 45545-2 HL3 (hazard level 3) requirements for interior equipment. Compliance includes: Low smoke emission during combustion

Halogen-free materials

Fire resistance rating

Toxicity limits for fumes. Material selection includes: UL94 V-0 rated plastics

Halogen-free wiring

Fire-resistant coatings

Metal enclosures where possible. This ensures passenger safety in case of fire. Contact our FAE team for EN 45545 compliance documentation.

Meets EN 45545-2 HL3 for interior railway equipment. Contact us for fire safety documentation.

Can the solution support redundancy for critical systems?

Yes, the Railway Power System Solution supports redundancy configurations: N+1 redundancy with parallel power supplies

Hot-swap capability for maintenance without shutdown

OR-ing diodes for decoupling

Power good monitoring for fault detection. Redundancy is essential for: Train control systems

Emergency communication

Safety-critical functions

Passenger information in tunnels. Configuration involves dual power supplies with redundancy module, decoupling diodes, and monitoring circuits. Contact our FAE team for redundancy design specific to your railway application.

N+1 redundancy available for critical systems. Contact us for railway redundancy design.

What is the expected lifetime in railway applications?

Railway equipment typically requires 20-30 year operational lifetime. The solution achieves this through: High-quality industrial-grade components

Conservative derating for extended life

Thermal management for temperature control

Protection features preventing damage

Designed for maintenance and service. MTBF is 300,000+ hours at railway operating conditions. Factors affecting lifetime include: Operating temperature (lower extends life)

Vibration exposure

Maintenance practices

Environmental conditions. The 5-year warranty with extended service options supports long-term deployment. Contact our FAE team for lifetime predictions specific to your conditions.

Designed for 20-30 year railway lifetime. Contact us for reliability analysis.