Dual-function 1500W Railway battery Charger

The 1500W onboard power module is tailor-made for Iraqi railway passenger vehicles, integrating charging and rectifying functions in one compact unit to streamline rolling stock power supply systems.

This module adopts PFC and full-bridge high-frequency conversion technology, with a rated input of AC220V (187V–253V wide fluctuation range) and 1500W constant power output. Switched via an external toggle switch, it shifts between two modes: charger mode delivers DC116V constant voltage with 13A limited current to charge the train’s 110V 60Ah low-rate Ni-Cd battery; rectifier mode outputs stable DC110V to sustain all onboard DC electrical loads. Identical main and control circuits enable mutual replacement of charging and rectifier units, greatly cutting spare part inventory and after-sales maintenance costs for rail operators.

Weighing under 4kg with dimensions 330×140×100mm, the compact black enamel housing features forced air cooling controlled by thermal resistors, efficiency above 88%, power factor ≥0.9 and noise below 50dB at 1 meter. It meets strict railway standards IEC 60077-1, IEC 61373 and DIN 5510-2, with IP20 enclosure protection, 30-year mechanical service life and 10-year PCB lifespan.

Built-in comprehensive safety protections cover battery undervoltage, output short-circuit, input over/under voltage, output overvoltage and overheating. Three LED indicators clearly display power input, normal output and overheat faults for rapid troubleshooting. The unit supports adjustable output voltage via a front potentiometer and restarts automatically after most fault clearance, avoiding permanent lockup except severe overvoltage.

For installation, bolt-type terminals with 2.5mm² wiring capacity simplify wiring, while regular half-year cleaning and tightness inspection extend service life. With robust shock/vibration resistance and full fault self-protection, this dual-purpose power module delivers stable, low-maintenance power for global passenger rail fleets.