Description
xVictron Orion-Tr Smart 48/12-20A (240W) Isolated DC-DC Charger
The Victron Orion-Tr Smart 48/12-20A is a galvanically isolated DC-DC charger designed to charge a 12V service battery from a 48V source. It is aimed at professional installers working on vehicles, vessels, off-grid systems and industrial applications where two battery banks must remain electrically isolated from one another. The built-in Bluetooth and VictronConnect compatibility make configuration and monitoring straightforward without additional hardware.
Key Features
- 48V input to 12V output with a continuous 20A (240W) output rating.
- Galvanic isolation between input and output, preventing ground loops and protecting sensitive electronics on either battery bank.
- Smart charging algorithm with adaptive 4-stage charge profile: bulk, absorption, float and storage.
- Built-in Bluetooth for configuration and real-time monitoring via the VictronConnect app on iOS and Android.
- Remote on/off input allows the unit to be controlled by an ignition signal or battery management system.
- Engine detection feature prevents excessive discharge of the starter battery by monitoring input voltage.
- Synchronised charging across multiple Orion-Tr Smart units when used in parallel for higher output current.
- Wide input voltage range accommodates fluctuating 48V bus voltages common in larger off-grid and vehicle systems.
Product Overview
The Orion-Tr Smart range uses a high-frequency transformer to provide full galvanic isolation between the input and output circuits. This is particularly important in dual-battery vehicle installations and marine applications, where a direct connection between two battery banks can introduce ground faults or corrosion caused by stray currents. The isolation also means the unit can be used to step down voltage across systems with separate earthing arrangements.
The smart charging capability sets this unit apart from a basic DC-DC converter. Rather than simply regulating output voltage, the Orion-Tr Smart applies a proper multi-stage charge profile to the service battery, extending battery life and ensuring a full charge is reached. Battery type and charge parameters are fully configurable via VictronConnect, supporting lead-acid (AGM, gel, flooded) and lithium (LiFePO4) chemistries. When used alongside a Victron BMS, the unit can receive charge enable/disable signals directly, making it compatible with managed lithium battery systems.
Multiple units can be connected in parallel and synchronised via Bluetooth to deliver higher combined output current where a single 240W unit is insufficient. This avoids the need to step up to a larger, more expensive unit when only a modest increase in capacity is required.
Specifications
- SKU: ORI481224120
- Input voltage: 48V nominal
- Output voltage: 12V nominal
- Output current: 20A continuous
- Output power: 240W
- Isolation: Galvanic (high-frequency transformer)
- Communication: Bluetooth (VictronConnect)
- Weight: 1.21 kg
- GTIN: 8719076066149
Applications
- Charging a 12V leisure or service battery from a 48V house bank in large motorhomes, coaches or specialist vehicles.
- Marine dual-battery systems where galvanic isolation is required to prevent corrosion and ground loops.
- Off-grid cabins and industrial installations with a 48V DC bus needing a regulated 12V supply for ancillary loads or a secondary battery.
- Telecom and industrial enclosures requiring a stepped-down, isolated 12V supply from a 48V rack battery system.
- Lithium battery systems managed by a Victron BMS, where charge control via remote on/off is required.
What Is Included
- 1x Victron Orion-Tr Smart 48/12-20A (240W) Isolated DC-DC Charger
Installation Notes
Installation should be carried out by a qualified electrician or experienced system integrator familiar with DC power systems. Ensure correct fusing on both the input and output cables in accordance with the wire gauge used and the unit's rated current. The remote on/off terminal should be connected to an ignition-switched signal or BMS charge enable output where engine detection alone is not sufficient. For marine installations, follow NMEA and flag-state wiring standards. This unit is not intended for grid-connected AC applications.
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.