Description
xVictron Orion-Tr 24/24-12A (280W) Isolated DC-DC Converter
The Victron Orion-Tr 24/24-12A is a galvanically isolated DC-DC converter rated at 280W, designed to step or maintain a 24V input to a regulated 24V output at up to 12A. It is suited to professional vehicle, marine and off-grid installations where electrical isolation between two DC circuits is required.
Key Features
- Galvanic isolation between input and output, preventing ground loops and protecting sensitive electronics in dual-battery or split-circuit systems.
- 24V input to 24V output at up to 12A continuous output current, delivering up to 280W of isolated DC power.
- Wide input voltage range accommodates real-world battery voltage fluctuations typical in 24V systems.
- Compact, enclosed aluminium housing with a weight of 1.3kg, suitable for permanent mounting in confined spaces.
- Output voltage is adjustable, allowing fine-tuning to suit specific battery chemistries or load requirements.
- No cooling fan required: the unit is convection-cooled, reducing noise and mechanical failure risk in enclosed installations.
Product Overview
The Orion-Tr range uses a transformer-based isolated topology, which means the input and output circuits share no common electrical path. This is important in vehicles, vessels and off-grid systems where two battery banks must remain electrically separate, whether for safety, noise rejection or regulatory reasons. Unlike non-isolated DC-DC converters, the Orion-Tr can be used to charge a secondary battery from a primary bank without creating a ground fault path between them.
At 280W and 12A output, this unit is appropriate for charging a secondary 24V service battery from a 24V starter or house bank, powering 24V DC loads from an isolated supply, or providing a clean, regulated feed to sensitive electronics. The output voltage can be adjusted via an internal trimmer, giving installers flexibility when working with different battery types or load voltage tolerances.
The Orion-Tr 24/24-12A is part of Victron's established Orion-Tr series, which covers a wide range of input and output voltage combinations. All units in the range share the same isolated architecture and are designed for continuous-duty operation in demanding environments.
Technical Specifications
| Parameter | Value |
| SKU | ORI242428110 |
| Input Voltage | 24V DC |
| Output Voltage | 24V DC (adjustable) |
| Output Current | 12A |
| Output Power | 280W |
| Isolation | Galvanic (transformer-based) |
| Cooling | Convection (fanless) |
| Weight | 1.3 kg |
| GTIN | 8719076035268 |
Applications
- Charging a 24V secondary service battery from a 24V starter battery in commercial vehicles or HGVs, with full electrical isolation between banks.
- Marine dual-battery systems where galvanic isolation is required to prevent corrosion and ground loop interference.
- Off-grid and mobile installations requiring a regulated, isolated 24V DC supply for sensitive loads or control electronics.
- Motorhome and coach conversions with separate chassis and habitation battery circuits.
- Telecom and industrial DC distribution panels where circuit isolation is a design or safety requirement.
What Is Included
- 1x Victron Orion-Tr 24/24-12A (280W) Isolated DC-DC Converter
Installation Notes
Installation should be carried out by a qualified electrician or experienced 12/24V DC systems installer. Ensure correct cable sizing and fusing on both the input and output sides in accordance with the system design and applicable wiring regulations. In marine applications, follow the relevant standards for DC wiring and bonding. The unit should be mounted in a ventilated location to allow convection cooling, and away from direct water ingress. Verify input voltage compatibility before connecting to any battery system.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.