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Products Power Conversion Engineering Our engineered power conversion catalog features high-efficiency DC/DC converters, wide-input AC/DC switching power supplies, and ruggedized industrial power modules optimized for rolling stock, signaling cabinets, and telematics across South America.
Colombia is executing a historic transformation of its transportation infrastructure. Driven by the national electric transit mandate, massive rail electrification projects—such as the Metro de Bogotá Line 1 & 2, the RegioTram del Occidente commuter rail, the expansion of the Metro de Medellín fleet, and the revival of the La Dorada–Chiriguaná freight corridor—demand advanced power electronics capable of operating flawlessly under extreme environmental and electrical conditions.
As China’s premier manufacturer and exporter of EN 50155-compliant DC/DC converters, our engineering team supplies custom, modified-standard, and catalog DC/DC converters specifically designed for rolling stock, wayside signaling, CBTC (Communications-Based Train Control), and passenger infotainment systems operating throughout Colombia's complex topographical terrain.
Power supplies deployed in Colombian rolling stock face wide ambient temperature variations, severe shock and vibration, high atmospheric humidity in tropical lowlands, and reduced dielectric breakdown voltages at high altitudes (e.g., Bogotá at 2,640 meters above sea level).
Deploying high-reliability DC/DC converters requires deep alignment with the nominal supply voltages defined by international rail standards (EN 50155 / RIA 12 / IEC 60571). Colombian rail infrastructure uses a diverse array of auxiliary battery voltages ranging from 24VDC, 48VDC, 72VDC up to 110VDC. Below are the key engineering integration scenarios where our DC DC converters deliver critical power conversion efficiency:
Urban metro lines require stabilized low-voltage power for On-Board Passenger Information Systems (PIS), Wi-Fi routers, IP cameras, and automatic train control unit signaling. Our 110VDC to 24VDC/12VDC encapsulated converters feature 10:1 ultra-wide input ranges to withstand line surges up to 154VDC without dropping logic power.
Operating in the Aburrá Valley with rapid temperature swings and high humidity, Medellín's train cars utilize our PCB-mount and chassis-mount conduction-cooled converters. Enhanced thermal derating curves and conformal coatings prevent condensation-induced dielectric arc-over.
Freight locomotives transporting coal and agricultural commodities along the Magdalena River corridor rely on heavy-duty 72V to 24V DC DC converters to power GPS telemetry, driver cabin diagnostics, and automated braking controllers exposed to severe mechanical shock (EN 61373 Class 1B).
Selecting the correct power topology requires matching rolling stock battery bus voltage profiles with the load demands of downstream subsystem architectures. The following dynamic engineering matrix outlines key platform specifications:
| Nominal Input Voltage | EN 50155 Continuous Range | Transient Window (100ms) | Output Voltages | Power Rating | Target Subsystem |
|---|---|---|---|---|---|
| 24 VDC | 16.8 V – 30 VDC | 14.4 V – 33.6 VDC | 5V, 12V, 24V DC | 8W – 150W | Sensors, Driver Dash, LED Drivers |
| 48 VDC | 33.6 V – 60 VDC | 28.8 V – 67.2 VDC | 12V, 24V, 48V DC | 50W – 350W | Wayside Controllers, Trackside Cabinets |
| 72 VDC | 50.4 V – 90 VDC | 43.2 V – 100.8 VDC | 12V, 24V DC | 100W – 600W | Freight Locomotive Cabin & Telematics |
| 110 VDC | 77.0 V – 137.5 VDC | 66.0 V – 154.0 VDC | 5V, 12V, 24V, 48V DC | 50W – 1500W | Metro Train Auxiliary Line & Door Control |
| Ultra-Wide (10:1) | 14.4 V – 154 VDC | Continuous All Ranges | 12V, 24V DC | 50W – 400W | Universal Rolling Stock Power Architecture |
The Colombian Ministry of Transport has prioritized heavy investment in electric rolling stock to replace legacy diesel buses and locomotives. This shift requires high-density DC/DC converters capable of operating with extreme energy efficiency (>92%), reducing power dissipation in unventilated train equipment bays.
Enclosed passenger transport systems, particularly underground sections of Metro de Bogotá, enforce strict fire safety compliance. All our converters use UL94 V-0 flame-retardant encapsulation resins and meet EN 45545-2 hazard level HL3 certification, preventing toxic off-gassing.
Leveraging decades of power engineering mastery, our manufacturing facilities combine agile OEM/ODM design flexibility with rigorous international defense and railway testing methodologies.
Skip long NRE cycles. We adapt proven catalog topology platforms—modifying pinout configurations, output voltage trims, wiring harnesses, and custom chassis brackets—in weeks rather than years.
Every design undergoes rigorous testing for high-altitude insulation clearance, thermal vacuum derating, surge/transient immunity (EN 50121-3-2 EMC), and 100% full-load thermal burn-in.
Deep experience exporting to Colombia (Bogotá, Medellín, Cali, Barranquilla). Fully compliant DIAN tariff documentation, HS-Code classification (8504.40), and express door-to-door air/sea freight logistics.
At higher elevations, lower air pressure reduces dielectric strength and convective heat dissipation. Our engineering team compensates by increasing internal PCB clearance and creepage distances (in compliance with IEC 60664-1 altitude multipliers) and applying high-thermal-conductivity potting compounds to maintain full power ratings without premature thermal derating up to 5,000 meters altitude.
Yes. Our specialized railway converters are designed from the ground up to meet EN 50155 (Railway Applications - Rolling Stock Electronic Equipment). This includes wide input voltage tolerance (0.7 Un to 1.25 Un continuous, 0.6 Un to 1.4 Un short term), EN 61373 shock and vibration resistance, and EN 50121-3-2 electromagnetic compatibility (EMC).
We manufacture converters for all nominal railway battery voltages used across Latin America: 24VDC, 48VDC, 72VDC, 96VDC, and 110VDC. We also offer 4:1 and 10:1 ultra-wide input models (such as 14.4V–154VDC continuous input) that cover all standard rail supply ranges in a single unit.
Standard stock catalog items can ship within 3 to 5 business days via DHL/FedEx Express, arriving at El Dorado International Airport (Bogotá) or José María Córdova International Airport (Medellín) in 5–7 days. Custom modified-standard orders typical lead times are 3 to 5 weeks for initial engineering samples.
Absolútamente. We supply complete export documentation including Certificates of Origin (Form E/CO), Commercial Invoices, Packing Lists with standardized HS Codes (8504.40.89 / 8504.40.90), and detailed EN 50155 test reports to ensure seamless customs release with DIAN in Colombia.
Contact our senior power application engineers to request sample units, custom pinout modifications, or technical datasheets for EN 50155 DC/DC converters and AC/DC power supplies.