DC-DC Converter Victron Energy Orion-Tr 48/24-5A 120W — 48V input to 24.2V output, 5A

The DC-DC Converter Victron Energy Orion-Tr 48/24-5A 120W converts a 48V battery or power source to a regulated 24.2V output at up to 5A (120W). Designed for use in vehicles, marine installations and off‑grid systems, this compact step‑down converter provides a stable 24V supply for electronics, control units and battery charging. The converter includes built‑in regulation and protection features intended to ensure reliable operation under variable input conditions and continuous loads within its rated power.

Advantages

The Orion-Tr 48/24-5A 120W offers efficient DC-to-DC conversion with a compact footprint suitable for confined installations. Integrated regulation maintains a steady 24.2V output across a range of 48V input voltages, and internal protections reduce the risk of damage from over-temperature, over-current and short circuits. Its design supports continuous operation at up to 5A, making it appropriate for powering 24V electronics from a 48V system without additional complex wiring or external regulators.

Suitable for

Key specifications

How to use

Install the converter close to the 48V source using appropriately sized cables and secure mounting to limit vibration. Connect the positive and negative input terminals to the 48V battery or power source, and connect the output terminals to the 24V load or battery. Verify correct polarity and tighten connections to manufacturer torque recommendations. After wiring, power on the 48V source and confirm the output reads approximately 24.2V with the load connected. Monitor initial operation for correct behavior and allow the converter to cool in free airflow or as specified by the installer.

Recommendations

Use correct cable cross-sections and fusing on both input and output circuits to protect against cable heating and to ensure safe fault interruption. Avoid installing the unit where ambient temperatures exceed the specified operating range or where ventilation is restricted. For battery charging applications, ensure the output voltage is compatible with the 24V battery chemistry and charging profile used.