Orion DC-DC Converters not smart Image

Orion DC-DC Converters not smart

Has the hardware changed in the Orio-Tr? Wont charge!

Made some more DCDC 24-12-24V Lithium boxes to a customer. The products are as usual, but now the newly purchased Orion-Tr 24/12-9 won't charge the 20ah Superpack...

Has the hardware or whatever changed? It works if a put a generic load on the output terminals of the Orion-Tr but if its connected to a battery (With or Without a load) its doing absolutely nothing.

philipr asked

0 Answers

remote on/off on Orion-TR from Cerbo GX relay?

Hey, I have a 48v Lifepo4 bank with a Multiplus 2 inv/charger. I also have a 12v lead acid bank, charged from the 48v bank with an Orion TR isolated 48/12 DC-DC. What I need help with is how to use the Cerbo GX relay to be able to turn the Orion on/off through the Cerbo GX remote console. How do I wire those together to get that function? cheers,

sherulesthewaves asked
trevor-bird commented ·

1 Answer

Orion-Tr Smart DC/DC control and grounding clarification


I am building a 24V setup very similar to the victron van install (https://community.victronenergy.com/articles/15035/victron-vw-van-electrics-install-schematic-drawing.html) on a old Mercedes Benz truck (no smart alternator).

Instead of the Buck Boost, I will use the new Orion-Tr Smart 24/24-17A (400W) Isolated DC-DC charger behind a Battery Protect.

My negative bus bar and the enclosure of the MultiPlus are grounded to the chassis using 4mm2 wire.

The manual of the Orion-Tr Smart (https://www.victronenergy.com/upload/documents/Manual-Orion-Tr-Smart-Charger-Isolated-EN-NL-FR-DE-ES-SE-IT.pdf) states on page 4:

"Remote on-off
Use the remote function to enable and disable the converter remotely with the remote on/off connector or using the
VictronConnect app. Typical use cases include a user operated
hard wired switch and automatic control by for example a Battery
Management System. If the minus of the service battery is not at
the same potential as the minus of the alternator or starter battery
an isolated remote on/off cable between the BMS and the on/off
port is required, see chapter 4.4 for details.

This should not be the case in a vehicle, but the on page 10, Figure 4:


there is an isolated remote on/off cable shown.

So here are my questions:

  • Is it correct to ground the negative bus bar and the enclosure of the MultiPlus to the vehicle?
  • Is it necessary to also ground the enclosures of the MPPT, the Orion etc. in such a setup?
  • Basically, I want to use the automatic "engine running" detection mechanism of the Orion-Tr to enable it. In case the VE.Bus BMS triggers the charge disconnect, the BatteryProtect on the charge side disconnects the Orion-Tr to protect the batteries. The question now is, if I also need to deactivate the Orion-Tr to protect it from beeing damaged, like with a MPPT? How would I do this? I have a "Non inverting remote on-off cable, ASS030550200" in my hands. It does not look like the one used in the diagram, it only has three cables (red, black, yellow).


kiko asked
Rod answered ·

1 Answer

Orion-Tr DC-DC Converter Isolated, wire terminal colour

Some are blue and some black around terminals, how do i know which i’ll receive Is the colour based on voltage or amperage?

Severe OCD my terminals must be black to match solar controller.

nivek asked
klim8skeptic commented ·

1 Answer

Welche Ausgangsspannung dc-dc Wandler einstellen

Ich habe mir einen Orion -TR DC-DC 12v-12V 30 A gekauft ohne Smart. Unten ist eine Schraube womit ich die ausgangs Spannung verstellen kann. Mein Frage wäre . Welche Ausgang Spannung muss ich am Wandler einstellen wenn die Lichtmaschine Strom erzeugt über die Fahrzeugbatterie . Dann auf meine Lifepo 4 . Sehe keine Abschaltung . Die Aufbaubatterie darf ja nur 14,2 V bekommen als Ladeschlußspannung . Es geht sich nur um die Spannung damit er auch abschaltet wenn ich wärend der Fahrt die Batterien voll habe . Danke für eure hilfe . Lg

mike-riemenschneider asked
steffen-graap answered ·

1 Answer

How to measure two DC Inputs On CCGX

I am looking to install a Victron system on my RV that will be using a third-party DC-DC charger to charge 48v house batteries from the vehicle's 12v alternator. If I were to connect this charger through a dedicated BMV battery monitor (with a second one for the system's DC loads), is there any way to have one show up as an "alternator" input on the CCGX display screen?

I know I could connect it through the BMV-700 and presumably just have the CCGX show it as power flowing from the "DC loads" box to the battery. My primary concern is ease-of-use for the end user, so I would greatly appreciate any way to configure thte CCGX for this display.

chase-martin asked
leedyson1 commented ·

4 Answers

What type of connector is used for the remove on a Victron Orion DC-DC Charger?

I need a replacement remote bridge for my Orion. Does anyone know what type of connector it uses or where can I source one?


antswift asked
juan-pablo-dosantos commented ·

1 Answer

Orion Non-Isolated + MPPT Question

Hi all, Q.s re 24v electric motor + 12v domestic setup on my boat.

Have 2 banks of solar 780w and 160w both charging my 24v batteries via separate MPPTs.

After a few rethinks, I'm thinking of fitting a 24/12 10a Orion non-isolated converter to power 12v appliances, and placing a LA buffer battery in parallel on the outputs. As far as I understand running converter at full load is more efficient. And the buffer battery would ‘step in’ and handle occasional loads above converter output. Want to be 100% this is correct?

To recharge the buffer battery, I was thinking I could fit a 2 pole 1-2 changeover switch to MPPT outputs of my 160w solar https://www.bimblesolar.com/changeoverswitch

If I were to changeover MPPT outputs between 24v and 12v battery systems, would the MPPT parameters automatically adjust to the new voltage?

Would I need to disconnect the 24/12 Orion from buffer battery when using an MPPT to charge it? Orion low power converters output voltage about ~12.7v. Would MPPT think this is the buffer battery voltage and go straight into float mode?


tara-dee asked
kevgermany answered ·

1 Answer

DC/DC converter on MPPT load output. not possible ?

Hello !

I have an orion 24/12 20 Amps DC/DC Conveter on the load output of an mppt 75/15 (victron) on a 24V system. Both devices are well functionning separetely but not together. Is that a normal thing ?

In the above mentionned setting i get an output voltage varying between 3 to 4 volts instead of 12.3V if i plug the Orion straight on the batteries.



raven asked
wbuchan commented ·

3 Answers

Parallel dc sources

Can the output of a mppt be put in parallel with the output of a dc~dc converter charger.. why? Because you need power added to lithium bank while plugged into shore power. Let’s say you sleep late and the solar starts pumping power. Who’s going to win. Will they fight each other?

cdstaley asked
shaneyake commented ·

1 Answer

Victron Orion 24/12 25a Max Output Current + Fuse Sizing

Hi All,

I'm looking to order a Victron Orion 24/12 25a Converter to power 12v domestic boat electrics from 24v battery system. Few quick questions:

1. Do we know for how long the max 35a output current rating is recommended? There's a small chance my 12v draw may jump above 25a for approx. 5 mins when my 12v diesel heater startup glow plug is on (it draws 10a!)

2. Assuming it is advisable to work to a 35a max output current, I'll have a 40a fuse on the 12v output cable and 20a fuse on the 24v input cable (because 35a @ 12v = 17.5a @ 24v). Does this sound OK?

3. Or, if 25a is the strict maximum output I should plan for, would it be advisable to fit a 25a breaker to the 12v output to protect the Orion if draw does go above 25a? (it's pretty unlikely this will ever happen, as everything would need to be on, inc. horn, headlight, bilge pump, water pump etc)


tara-dee asked
kevgermany commented ·

11 Answers

Orion-TR 12|12 - 9, welche Sicherung "davor" ?

Hallo zusammen,

ich habe jetzt erst gelesen dass die integierte Eingangs Sicherung nicht austauschbar ist, das ist nicht schön!


Welche Kapazität hat die interne Victr. Sicherung damit ich weiß welche Kapazität ich davor klemmen muss, um die Victron Sicherung zu schützen ;-)

Es ist kein Aprilscherz!

Ich nutze den DC/DC als reine geregelte Konstantstromquelle für hochwertige elektronische Geräte im Kastenwagen. Mehr als 5 A werden da nicht durchgehen.


PS: Ich hoffe das Post kommt im richtigen Bereich an, diese Art Forum ist mir etwas fremd ...

bfg asked
kevgermany answered ·

1 Answer

Orion IP67 24/12-100A parallel operation.

Don't know whether this is a obvious road question... But I search here and on the net, just as the victron site and did not find a clear go ahead yet.

I installed a Skylla IP65 with balancer to a 24volt packet, I did this in a caravan at 12v. For this I installed an Orion IP67 24/12 100A (overdone I know).

However, I have 4 movers which are hitting the 1200 watt depending the work they have to do. Normally the operate around 800 or so.

Point is one mover jumps out when moving forwards and the break pads have to be released, it seems it cannot release them anymore or so. As before, directly to a a single battery, it could.

This and the fact that it tickles the max the Orion can deliver, made me decide to go to 2 off those Orion. Give it the jus it seems to like.

2 options. One is giving the master and slave there own dedicated ORION (Don't know whether the movers like this) . And the second, which I prever is installing two Orion IP67 with 100 amp cap and combine them to a single busbar for the movers.

My question is... Can this orions be installed parallel? I know the smart versions with adjustable outputs can.


dejongmr asked
dejongmr answered ·

1 Answer

Orion-TR 12/12-9A as charger output doesnt goes up until batterie ist disconnected (several hundred pieces)


i hope you can help me.

We bought several hundred Orion-TR 12/12-9A for a large project in order to be able to charge LiFePO4 batteries (Jubatec with BMS) (12.8V / 6AH) on the vehicle on-board network in a galvanically isolated manner.

The prototype with an Orion-TR12/12-9A, which was delivered in mid-2021, worked very well, but the devices from the final large delivery from late 2021-early 2022 only ramp up their output after applying the input voltage when the battery the output has been briefly disconnected even though the output LED is green. Apparently the device can no longer cope with the external voltage of the battery. The set output voltage of the Orion is irrelevant. We have noticed that the new shipment now has E4 10R-064720 approval, which the prototype device does not have. Maybe there is a connection here?

SN of one of the non-functioning devices: HQ2136QDPPQ.

Working prototype SN: HQ2107RLXXG.

The batteries have already been tested, that's not the reason.

We now have several hundred Orion-TR12/12-9A, which are not suitable for their purpose.

Anyone an idea? Victron support?

elojack asked
elojack answered ·

3 Answers

DC/DC - 48v to 24v conversion + buffer battery?

I am in the process of spec'ing out the power electronics for a large sailboat. For various reasons, it will have a 48v LiFePo4 bank where the majority of charging sources come in, as well as the inverter/charger, and then a 24v buffer battery where most of the DC loads will draw from. It looks like the total 24v DC power usage will be around 10kwh per day, but with loads like electric winches or windlass potentially spiking temporarily to 3.6kw (~150A)

My first question is this - what is the proper way to handle this conversion? The only 48/24v dc/dc converters I see on the site are the 'dumb' Orion DC/DC chargers that go up to 400W. It looks like we'll need about 500W/hr of charging to keep up with demands, and an extra converter for redundancy (absolutely cannot have this fail at sea!) So it looks like 3 x Orion 48/24v converters in parallel?

Secondly - the buffer battery will be a Victron 24v 200ah LiFePo4 smart battery. The DC/DC converters seem to be configured to just output a steady voltage. Does this buffer battery need to be supplied with a 'smart' charger to give it exactly the right voltage to fully charge, or can the converters be set to a safe voltage and just keep it mostly charged?

hoeken asked
bathnm answered ·

6 Answers


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