Orion Tr Smart 24/24-12A (280W) DC-DC Isolated Charger

The Victron Energy Orion Tr Smart 24/24-12A (280W) DC-DC isolated charger is a professional DC-DC converter and charger designed for dual-battery systems onboard. It recharges a service battery from an alternator or a starter battery, or operates as a fixed-voltage power supply. It provides 200V DC galvanic isolation between the input, output, and case.

This charger delivers a continuous output of 280W at 40°C (320W at 25°C) and a continuous output current of 12A at 40°C. Its efficiency reaches 89%. It can operate within a temperature range of -20 to +55°C.

The Orion Tr Smart 24/24-12A charger has an input voltage range of 16-35V and an adjustable output voltage of 20-30V, with a nominal voltage of 24.2V.

Yes, the charger includes multiple electronic protections, including against high temperatures, overload, short circuits, and overheating of connectors.

The integrated Bluetooth Smart enables monitoring, configuration, and software updates for the charger via the VictronConnect app, available on smartphone or tablet.

The charger uses a 3-stage adaptive charging algorithm: bulk (fast charge), absorption (constant voltage with adjusted duration), and float (trickle charge). The absorption time is automatically adjusted for lead-acid batteries and is set to 2 hours by default for lithium batteries.

Yes, in power supply mode, the output voltage remains stable regardless of the load applied or input voltage variations (within the specified range).

The engine-running detection function allows the charger to supply power only when the vehicle's engine is running. This prevents the starter battery from discharging when the alternator is not providing current and does not require any modification to the vehicle's system.

The charger has an IP43 protection rating when installed with the screw terminals facing downward. This means it is protected against solid objects larger than 1 mm and against water splashes.

Yes, the Orion Tr Smart 24/24-12A charger provides 200V DC galvanic isolation between input, output, and case, improving system electrical safety.

The charger must be mounted vertically on a non-flammable surface, with the power terminals facing downward. It is important to leave a minimum clearance of 10 cm above and below the unit for optimal cooling.

The charger must never be mounted directly above the battery to prevent damage from battery gases. It should be installed near the battery, but not directly on top of it.

For battery connections, use flexible multi-strand copper cables. Individual strand diameter must not exceed 0.4 mm or 0.125 mm² (AWG26). A fuse must be included in the installation according to the product manual's recommendations.

The manual recommends a 16mm² cable with at least 122 strands (class 5 or higher per VDE 0295, IEC 60228, and BS6360), such as a "Tri-rated" class 5 cable. Using strands that are too thick can lead to high contact resistance and overheating.

No, the product is not protected against reverse polarity. It is critical to check polarity before and during battery connection to prevent damage to the device.

The charger can be remotely enabled or disabled via the remote on/off connector or via the VictronConnect app. This allows use cases such as a wired switch or automatic control by a battery management system (BMS).

Yes, the Orion Tr Smart charger is compatible with smart alternators (ECU-controlled) that provide a variable output voltage and can shut down when not required. It includes an engine-running detection mechanism to prevent the starter battery from discharging.

Yes, the charger is compatible with lithium batteries. Its 3-stage adaptive charging algorithm adjusts the absorption time, which is set to 2 hours by default for lithium batteries.

Yes, the charger features a programmable charging algorithm and eight pre-programmed battery settings, configurable via the VictronConnect app to adapt to different battery types.

Yes, the Orion-Tr Smart DC-DC Charger is designed to isolate the starter battery from the service battery when the engine is not running, ensuring the starter battery is not discharged.