Victron Energy Orion-Tr Smart Isolated DC-DC Charger, Bluetooth

Overview

The Victron Energy Orion-Tr Smart DC-DC Charger Isolated is a Bluetooth-configurable DC-DC battery charger for 48V input systems, with variants for 12V, 24V, and 48V output banks. It uses an adaptive 3-stage charge profile with bulk, absorption, and float stages, and it can also work as a fixed-output power supply when the installation calls for regulated DC power rather than battery charging.

For boat installations, the isolated layout is useful when the input and output sides should keep separate chassis grounds. The 48V input models accept a 32 to 70 VDC input range, support lead-acid and lithium batteries, and operate from -20 C to +55 C with output derating above 40 C.

Key features

• 48V input family with output options for 12V at 30A, 24V at 16A, or 48V at 8A.
• Built-in Bluetooth allows monitoring and setup through VictronConnect without opening the installation area after commissioning.
• Adaptive 3-stage charging supports lead-acid and lithium battery charging, with configurable settings for the battery bank.
• Galvanic isolation is rated at 200V DC between input, output, and case, which helps keep separate DC systems apart.
• Remote on/off and engine running detection help manage charging in systems where charging should stop when the engine or source is not available.
• Can be used as a DC power supply, with output voltage set by Bluetooth.
• IP43 rating applies to the electronic components and IP22 to the connection area when mounted with screw terminals facing downward.
• Screw terminals accept cable up to 16 mm2 / AWG 6, giving room for correctly sized marine DC cabling.

Variants

The variants below all belong to the 48V input Orion-Tr Smart isolated charger range.

Output voltage and output current are the key differences. The 32 to 70 VDC input range, Bluetooth setup, galvanic isolation, screw-terminal DC connection, and IP43/IP22 protection rating remain consistent across these three 48V input models.

• ORI481238120: 12V output with 30A output current. This configuration fits a 48V source system feeding a 12V service battery or 12V DC loads through an isolated charger.
• ORI482438120: 24V output with 16A output current. This configuration fits a 48V source system feeding a 24V service bank or 24V DC distribution through isolated conversion.
• ORI484838120: 48V output with 8A output current. This configuration keeps the output side at 48V while adding charger control and isolation between source and output circuits.

Installation and fit

Install the charger in a dry, ventilated electrical space such as a DC panel area, machinery space, or protected locker. The protection rating is not for exposed deck mounting, and the screw terminals should face downward to match the stated protection category.

The 48V input models in this range measure 130 x 186 x 70 mm and weigh about 1.6 kg. Leave space for cable bends, terminal access, and airflow, especially in engine room or lazarette installations where temperature can climb.

Electrical and system integration

Use it between a 48V source side and the selected output battery or DC distribution side, then configure the charging profile over Bluetooth. The remote on/off input allows a low-current switch or relay contact to control the charger, so the main DC feed does not need a high-current switch just to enable or disable charging.

The engine running detection is useful where charging should depend on source availability. In lithium systems, controlled DC-DC charging also helps avoid direct source loading that can occur when a low-impedance battery is connected without charge control.

Use cases on board

This charger is a practical match for boats with a 48V battery system that also needs a separate 12V, 24V, or 48V battery circuit. It makes sense for refits where mixed-voltage equipment remains on board and the installer wants charging control, Bluetooth setup, and isolation instead of a simple converter.