Victron Energy Orion-Tr 24/48-8.5A 400W Isolated DC-DC Converter

Use Victron Energy Orion-Tr 24/48-8.5A DC-DC Isolated Converter to step up your 24V DC source voltage to power your 48V DC loads. With a 15A surge and 8.5A continuous current rating, it offers a supply of 400W-480W, depending on the operating temperature.

The Orion-Tr features a remote on/off, eliminating the need for a high current switch in the input wiring. Operate the remote on/off with a low power or engine switch. The isolated models have short-circuit protection. The 12V and 24V models come with an internal non-replaceable input fuse. Connect multiple units in parallel to increase the output current. Make use of the IP43 protection rating by orienting the screw terminals downwards.

Orion-Tr Isolated DC-DC Converter Voltage Configurations

The Orion Tr isolated DC-DC converter comes in multiple voltage configurations. Use the following tables and the downloadable datasheet to select the correct voltage for your application. Note that you can not change the factory voltage for either the input or output. Victron Energy offers a five-year warranty on all of its power products.

Complete List of  Victron’s Isolated DC-DC Converters

What is Galvanic Isolation

The input and output in isolated chargers and converters have separate ground circuits. Non-isolated devices have a common ground (negative).

Difference Between Isolated and Non-Isolated DC-DC Converter/Chargers

The ground circuit is the main difference between an isolated and non-isolated converter or charger. The input’s ground (negative) circuit in isolated devices is separate from the output’s ground connection (galvanic isolation). Non-isolated DC-DC converters and chargers share a common ground circuit (negative).

When to Use a Converter or Charger with Galvanic Isolation

Choose an isolated DC-DC converter or charger when you have separate ground circuits for your input and output, for example, a fiberglass boat where the ignition and utility batteries are on different parts of the vessel. Consider an isolated DC-DC converter or charger when there is a single (common) ground circuit, such as the vehicle’s chassis. It is acceptable to use an isolated converter or charger with a shared ground circuit; be aware that the galvanic isolation is lost by making the connections this way.

Difference Between a DC-DC Charger and a DC-DC Converter

A DC-to-DC charger is used to charge batteries from a DC source. A typical application is charging the vehicle’s recreational or utility battery from the starter battery or alternator. Victron DC-DC chargers have configurable charging settings for 12V, 24V, and 48V batteries.

A DC-DC converter is meant to power DC loads such as a 12V fridge, lights, or outdoor equipment. The DC-DC converter will step up (i.e., from 12V to 24V) or step down (i.e., from 48V to 12V) the input or source voltage. It is generally needed when the DC load has a different voltage than the source, for example, a 12V refrigerator in a 24V RV. A DC-to-DC converter has a consistent DC output and is not suitable for charging batteries.