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Victron 12V to 48V Orion-Tr 12/48-8A (380W) Isolated DC-DC Charger

12V to 48V isolated DC-DC charging with Bluetooth programming and 3-stage charging for mobile and off-grid systems


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DESCRIPTION

Victron 12V to 48V Orion-Tr 12/48-8A (380W) Isolated DC-DC Charger: Isolated DC-DC Charger for Reliable Voltage Conversion

The Victron 12V to 48V Orion-Tr 12/48-8A (380W) Isolated DC-DC Charger is a high-performance isolated DC-DC charger engineered to provide stable, efficient power conversion between different voltage battery systems. Designed for demanding applications in vehicles, marine vessels, and off-grid installations, this charger ensures your auxiliary batteries receive a precise, multi-stage charge regardless of input voltage fluctuations. With galvanic isolation between input, output, and case, it protects sensitive electronics and eliminates ground loop issues, making it a safe choice for complex electrical systems.

Unlike generic DC-DC converters, the Orion-Tr Smart series uses a sophisticated three-stage charging algorithm (bulk, absorption, float) that adapts to battery condition, extending battery life and preventing overcharging. The fully programmable output voltage allows customisation for specific battery chemistries, including lithium, AGM, and gel. Integrated Bluetooth connectivity via the VictronConnect app provides real-time monitoring and configuration from your smartphone, eliminating the need for additional displays or wired connections.

Key Features

  • Galvanic isolation (200V DC) between input, output, and case for enhanced safety and noise immunity
  • Fully programmable three-stage charging algorithm with adaptive battery management
  • Bluetooth Smart for wireless setup, monitoring, and firmware updates via VictronConnect
  • Remote on/off terminal for integration with battery management systems or external switches
  • Wide input voltage range with under-voltage protection to prevent battery drain
  • Parallel operation supported for scalable current output in larger systems
  • Robust aluminium heat sink with passive cooling for reliable operation up to 55°C
  • IP43 protection when mounted with terminals facing downwards, suitable for engine bays and marine environments
  • Screw terminals accept up to 16mm² (AWG6) cable for low-resistance connections

Smart Charging for Modern Systems

Compatibility with smart alternators (Euro 5/6) ensures seamless integration in modern vehicles where variable voltage output can confuse traditional chargers. The charger detects engine running status via voltage sensing or a dedicated trigger wire, preventing accidental battery drain when the engine is off. A configurable input voltage lock-out allows precise control over charging initiation, ideal for systems with solar or shore power inputs.

Built for Harsh Environments

The Orion-Tr Smart is built to withstand the rigours of mobile and off-grid use. The sealed electronics and conformal-coated circuit board resist moisture, dust, and vibration. The extruded aluminium heat sink dissipates heat efficiently without fans, ensuring silent, maintenance-free operation. With an operating temperature range of -20°C to +55°C and derating above 40°C, it performs reliably in Australian conditions from the outback to the coast.

Flexible Installation and Control

Compact dimensions (130 x 186 x 80 mm) and multiple mounting options allow installation in tight spaces. The remote on/off port accepts a low-current switch or relay, enabling control from a dashboard or central management system without heavy-gauge wiring. For systems requiring higher current, multiple units can be paralleled with automatic load sharing, providing a scalable solution for larger battery banks.

Applications

This isolated DC-DC charger is ideal for charging auxiliary batteries in caravans, motorhomes, 4WDs, boats, and off-grid cabins. It efficiently steps voltage up or down to match your battery bank, whether you need to charge a 12V house battery from a 48V electric vehicle system or maintain a 48V battery from a 12V alternator. The galvanic isolation makes it particularly suitable for marine installations where corrosion and stray currents are a concern.

Whether you're upgrading an existing dual-battery setup or building a new off-grid power system, the Victron 12V to 48V Orion-Tr 12/48-8A (380W) Isolated DC-DC Charger delivers precise, reliable charging with the intelligence to protect your investment. Configure it once via the app, and it will automatically manage your battery charging for years to come.

Ready to optimise your DC-DC charging? Install the Victron 12V to 48V Orion-Tr 12/48-8A (380W) Isolated DC-DC Charger and experience the difference that smart, isolated conversion makes in your mobile or off-grid power system.


SKU: Vic-ORI124838120

SPECIFICATIONS

Specifications

Model Orion-Tr 12/48-8 (380 W)
Input voltage range (1) 10-17 V
Under voltage shut down 7 V
Under voltage restart 7.5 V
Nominal output voltage 48.2 V
Output voltage adjust range 40-60 V
Output voltage tolerance +/- 0.2 V
Output noise 2 mV rms
Cont. output current at nominal output voltage and 40°C 8A
Maximum output current (10 s) at nominal output voltage minus 20% 15 A
Short circuit output current 25 A
Cont. output power at 25°C 430 W
Cont. output power at 40°C 380 W
Efficiency 89%
No load input current (2) < 220 mA
Current consumption < 200uA when disabled via its remote port
Galvanic isolation 200 VDC between input, output and case
Operating temperature range -20 to +55 °C (derate 3 % per °C above 40 °C)
Humidity Max. 95 % non-condensing
DC connection Screw terminals
Maximum cable cross-section 16 mm2 AWG6
Weight 1.8 kg (4 lb)
Dimensions hxwxd 130 x 186 x 80 mm (5.1 x 7.3 x 3.2 inch)
Standards: Safety EN 60950
Emission EN 61000-6-3, EN 55014-1
Immunity EN 61000-6-2, EN 61000-6-1, EN 55014-2
Automotive Directive ECE R10-5

1) If set to nominal or lower than nominal, the output voltage will remain stable within the specified input voltage range (buck-boost function). If the output voltage is set higher than nominal by a certain percentage, the minimum input voltage at which the output voltage remains stable (does not decrease) increases by the same percentage.

2) Current consumption when the Orion-Tr is generating output voltage but no load is applied.


SKU: Vic-ORI124838120
Barcode: 8719076065654
Model #: ORI124838120
MPN: ORI124838120

WARRANTY

Victron Energy Limited Warranty Policy

Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the end user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead acid batteries; 2 years from date of purchase by the end user, with a maximum of 30 months from the Victron Energy invoice date, Lithium-ion batteries; 3 years from date of purchase by the end user. In addition to this proof of correct battery usage is required when making a battery warranty claim.

During this period, Victron Energy will, at its option, repair or replace the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation and re‐installation. This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like: • Reverse of battery polarity. • Inadequate connection. • Mechanical shock or deformation. • Contact with liquid or oxidation by condensation. • Use in inappropriate environment (dust, corrosive vapor, humidity, high temperature, biological infestation...). • Breakage or damage due to lightning. • Connection terminals and screws destroyed or other damages, like overheat, due to insufficient tightening. • For any electronical breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state ofthe internal control diode and of the inputs/output X and Y capacitors determine the warranty.

This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone else than Victron Energy or one of its authorized Qualified Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified.

Repair or replacement are our sole remedies and Victron Energy shall not be liable for damages, whether direct, incidental,special, or consequential, even caused by negligence or fault.

Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If Victron Energy repairs or replaces a part of a product, its warranty term is not extended. In case of replacement the new component has a warranty of 6 months, without effect on the initial warranty period. All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent orspecial damages, even if having been advised of the probability of such damages. Any and all other warranties expressed or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of two (2) years from the date of purchase.

Life Support Policy As a general policy, Victron Energy, does not recommend the use of any of its products in life support applications where failure or malfunction of the Victron Energy's product can be reasonably expected to cause failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the Liability of Victron Energy is adequately protected under the circumstances.

As a product requires service, it must be brought back to the place of purchase. In case no contact can be taken with the merchant, or if he is either unable or not allowed to provide service, direct contact should be taken with Victron Energy.

Warranty on Repairs The warranty period on products or on printed circuits boards repaired by Victron Energy as well as on printed circuit boards for replacement is 6 months from delivery by Victron Energy.

Transport It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.

Severability If a part of the terms and conditions set out above is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions remaining.

For Australia only Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Exotronic provides high-quality products and solutions tailored for B2B and commercial customers, including commercial businesses, caravan manufacturers, marine electricians, OEMs, as well as emergency services, and more.

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