Victron Energy 48V to 12V 20A Orion-Tr Smart Isolated DC-DC Charger

The Victron Energy Orion-Tr Smart 48/12-20A is a professional-grade, isolated DC to DC adaptive 3-stage charger. Engineered for integration into dual-battery systems in vehicles, boats, and off-grid builds, this unit efficiently steps down a 48V input to a highly stable 12V output. The isolated design means the input and output have separate chassis grounds, providing critical separation for sensitive marine and industrial electrical networks.

Adaptive 3-Stage Charging

Built to actively manage and maintain battery health, the Orion-Tr Smart features a fully programmable 3-stage charging algorithm (bulk, absorption, and float). This ensures optimal performance across a wide range of battery chemistries, including both traditional lead-acid and modern lithium setups. The output voltage is fully adjustable, allowing the device to serve either as a dedicated multi-stage battery charger or as a stable power supply for 12V DC loads operating from a 48V battery bank.

Bluetooth Smart Connectivity

Monitoring and configuring your charging parameters is straightforward with built-in Bluetooth functionality. By connecting the unit to the VictronConnect app on a smartphone or tablet, users can wirelessly adjust voltage settings, check operational status, update firmware, and customise charging profiles without requiring a separate dongle or hardwired display.

• Isolated DC-DC Functionality: Safely converts a 48V input into a stable 12V output (240W continuous) with separated input and output grounds.
• Smart Alternator Compatible: Includes a built-in engine running detection mechanism, preventing the device from inadvertently draining the starter battery in Euro 5/6 vehicles.
• Fully Programmable: Supports custom charging profiles and fixed-voltage supply modes to suit specific system requirements.
• Expandable Power: Features a parallel-ready design, allowing an unlimited number of multiple units to be connected to increase overall output current.
• Remote On/Off Capability: Can be controlled remotely via a switch, relay, or battery management system signal line.
• High-Temperature Performance: Operates reliably in environments up to 55°C, delivering its full 20A rated output in conditions up to 40°C.

Robust and Reliable Design

Built for the harsh environments commonly encountered in mobile and off-grid applications, the Orion-Tr Smart includes comprehensive thermal and short-circuit protection. It automatically reduces its output at high temperatures to protect internal components. When correctly installed with the screw terminals facing downwards, the electronic components benefit from an IP43 protection rating, guarding against moisture and dust ingress.

Whether you need to cleanly step down a 48V system to support 12V equipment or require a precision charger to manage an auxiliary battery array, the Victron Orion-Tr Smart provides a highly configurable, dependable power conversion solution.