The Victron Orion-Tr 24/24-5A is a galvanically isolated DC-DC converter built for 24V to 24V conversion where two circuits must stay electrically separate. It delivers up to 120W continuous output at 5A, making it suited to professional vehicle, marine and off-grid installations that run two battery banks or systems side by side.

Key features

• Isolation, galvanic, transformer-based, separating input and output circuits completely.
• Output, 24V DC at 5A, up to 120W continuous.
• Input, 24V DC nominal.
• Weight, 0.5kg in an enclosed housing suited to confined spaces.
• Duty cycle, designed for continuous operation, not just short bursts.

Why isolation matters

Where two battery systems share a common ground, noise, leakage current and fault voltages can travel between them. The Orion-Tr's transformer-based barrier breaks that path. This matters on boats where stray current drives corrosion, and in vehicles with sensitive CAN-bus or audio electronics that a fault elsewhere shouldn't reach.

Applications

• Dual-battery systems in commercial vehicles, campervans and HGVs where chassis and auxiliary banks need to stay isolated.
• Marine installations such as narrowboats, yachts and workboats where stray current corrosion is a risk.
• Off-grid cabins with separate generation and load battery circuits.
• Body-builder and specialist vehicle conversions with independent 24V zones.
• Telecom and industrial enclosures needing a clean, isolated 24V supply from a shared 24V bus.

What's included

• 1x Victron Orion-Tr 24/24-5A (120W) Isolated DC-DC Converter

Installation notes

Fitting should be done by a qualified electrician familiar with DC wiring practice. Fuse both input and output circuits to match the cables used, mount the unit somewhere ventilated, and secure it against vibration. On boats, follow the relevant wiring standards for the installation. Check the source voltage stays within range under load before switching on.