Description
xVictron Orion-Tr 48/12-9A (110W) Isolated DC-DC Converter — ORI481210110
The Victron Orion-Tr 48/12-9A is a galvanically isolated DC-DC converter that steps a 48V DC input down to a regulated 12V DC output at up to 9A (110W). It is designed for professional use in vehicles, vessels, off-grid systems and industrial installations where a stable 12V supply is needed from a 48V battery bank or bus, without any electrical connection between the two circuits.
Key Features
- Galvanic isolation between input and output eliminates ground loop issues and protects sensitive 12V loads from the 48V supply.
- 48V nominal input with a regulated 12V output at up to 9A continuous current (110W rated power).
- Wide input voltage range accommodates real-world battery voltage variation across the 48V range.
- Compact and lightweight at 0.5kg, suitable for panel mounting in tight installations.
- Designed for integration into Victron system architectures alongside MultiPlus, Quattro and other 48V equipment.
- Fixed output voltage suitable for powering 12V auxiliaries, control circuits and accessories from a 48V main system.
Product Overview
The Orion-Tr range uses a transformer-based isolated topology, which means the input and output share no common electrical path. This is particularly important in marine and vehicle applications where chassis grounds differ between circuits, and in any installation where a fault on the 12V side must not propagate to the 48V battery bank. The isolation also makes the unit suitable for use in systems with mixed battery chemistries or separate battery banks.
At 110W, this converter is sized for powering 12V control equipment, lighting circuits, communication devices and other auxiliary loads from a 48V system. It is not a battery-to-battery charger; the output is a regulated voltage rail rather than a charge profile. For applications requiring 12V battery charging from a 48V source, Victron's Orion-Tr Smart range should be considered instead.
Technical Specifications
| Parameter | Value |
| SKU | ORI481210110 |
| Input Voltage (Nominal) | 48V DC |
| Output Voltage | 12V DC |
| Output Current (Max) | 9A |
| Rated Power | 110W |
| Isolation | Galvanic (transformer-based) |
| Weight | 0.5 kg |
| GTIN | 8719076016762 |
Applications
- Powering 12V auxiliary circuits from a 48V off-grid battery bank.
- Marine installations requiring isolated power conversion between separate DC systems.
- Electric vehicles and specialist vehicles with a 48V main bus and 12V accessory loads.
- Telecommunications and industrial control panels where galvanic isolation is a requirement.
- Victron 48V system installations needing a stable 12V rail for monitoring or control equipment.
What Is Included
- 1x Victron Orion-Tr 48/12-9A (110W) Isolated DC-DC Converter
Installation Notes
This unit operates at 48V DC, which is considered a hazardous voltage in many jurisdictions. Installation should be carried out by a qualified electrician or accredited installer familiar with DC power systems. Ensure correct fusing on both the input and output sides in accordance with the wire gauges used. The galvanic isolation means input and output grounds are independent; take care not to inadvertently bond them during installation, as this would defeat the purpose of the isolated topology.
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.