Upgrade · Home battery
Convert a Victron Lynx Power In into a Distribution Unit and Save Money
I show how to convert an affordable Victron Lynx power in unit into a distribution board with mega fuses, saving 70 to 80 euros.
By RobbertPosted
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7.3k views on YouTube · Open on YouTube (Robbert DIY projects)
I like to use a full set of Victron equipment, but some of their features drive up the price unnecessarily. Instead of buying an expensive Lynx distribution board, I use a second Lynx power in and modify it myself to save about 40 percent.
While the official distribution board includes a communication circuit board for the Cerbo and LED lights for blown fuses, I do not need these extras. I can easily see a blown fuse on my MultiPlus inverter, making this a smart and budget-friendly alternative.
Steps
Step 1: Comparing Lynx power in and distribution
The Lynx power in costs about 120 euros, while the distribution board costs 190 to 200 euros. The power in only has busbars and battery connections, whereas the distribution board adds four fuses, a circuit board that communicates with the Cerbo, and LED lights on the front for blown fuses. Both units share the exact same back housing and busbars, so I am building a cheap distribution unit without these extra features.
What I used
Item Amount Notes Victron Lynx power in 1 Used as the base unit costing about 120 euros Victron Lynx distribution 1 Alternative unit costing 190 to 200 euros which I am avoiding Step 2: Gathering parts for the conversion
To modify the power in unit, I need a few specific hardware pieces. I collect four M8 bolts, eight M8 revets, four spring washers, and eight nuts.
Four M8 bolts
Eight M8 revets
Four spring washers
Eight nuts
What I used
Item Amount Notes M8 bolts 4 Used for mounting M8 revets 8 Used with the bolts Spring washers 4 Used to secure connections Nuts 8 Used to fasten the bolts Step 3: Preparing the power in unit
I start by removing the plastic holders from the unit. I take out the two top screws, flip the holder up, and remove the two bottom screws. Then I can take out the entire plastic unit.
Step 4: Installing the bolts and securing the plate
I place the inbus bolts into the four available holes. Next, I put the plastic plate back over the bolts, followed by four revets and four nuts. Then I put the original outside screws back into the frame and tighten them firmly with a wrench so nothing can move.
Step 5: Mounting the mega fuses
After loosening the original nuts, I grab the mega fuses. I choose a fuse rating that fits my setup, such as the 200 ampere version advised by Victron for a 5 kVA set. I place the fuse over the bolts, add a revet, a spring washer, and a nut, and tighten them down.
What I used
Item Amount Notes Mega fuses 4 200 ampere version recommended by Victron for a 5 kVA set Step 6: Connecting cables to the custom distribution
I place the cable lugs over the studs. Then I add another nut, a spring nut, and a bolt, and tighten them up securely. This gives me a functional setup identical to a Lynx distribution board, minus the fancy indicator circuit board.
Step 7: Total cost savings and personal opinion on Victron pricing
I personally feel that the extra expense for the original distribution board is not worth it, no offense to Victron. I see the Lynx distribution as a glorified, very expensive fuse box when the power in basically has the same options. This modification saves me about 70 euros quickly.
Because the whole set is already super expensive, saving money wherever we can is a nice bonus.
Step 8: Overview of current components built so far
So far, we have built the power in and the same busbar shunt where I also saved 200 euros. This is all part of the progress of building my Victron three-phase system. In the end, this is everything needed to make a large 16 kWh battery pack.
The only things left to do are making a printed bracket for the wire-end switch and putting a plexiglas plate on it purely for safety so no metal can get in.
Step 9: Call for viewer comments and request for an original distribution sticker
If I do something wrong, I hope to learn from you as well. Please leave comments, questions, or whatever it is in the comments section, and I try to personally reply to every message in the days following the video. If anyone still has an original distribution sticker, let me know so I can paste it over the unit.
In the next video, I will begin hanging the Victron MultiPlus 5 kVA set for all three phases.
Step 10: Takeaways
You can convert a Victron Lynx power in into a distribution board to save money.
The power in lacks only the Cerbo communication board and blown fuse LEDs found on the distribution model.
Using basic hardware like M8 bolts and mega fuses makes the DIY conversion simple.
This custom modification saves around 70 to 80 euros compared to buying the official distribution unit.
Everything I used
| Item | Amount | Notes |
|---|---|---|
| Victron Lynx power in | 1 | Used as the base unit costing about 120 euros |
| Victron Lynx distribution | 1 | Alternative unit costing 190 to 200 euros which I am avoiding |
| M8 bolts | 4 | Used for mounting |
| M8 revets | 8 | Used with the bolts |
| Spring washers | 4 | Used to secure connections |
| Nuts | 8 | Used to fasten the bolts |
| Mega fuses | 4 | 200 ampere version recommended by Victron for a 5 kVA set |
Result and Next Steps
By modifying the power in unit, I save about 70 euros on top of the 200 euros I already saved on the shunt. In the next video, I will mount the busbars, connect the system, and start installing the 3-phase Victron MultiPlus 5 kVA set. I also plan to add a plexiglas safety cover and printed brackets for my 16 kWh battery pack.
Questions from YouTube viewers
Asked in the comments under the video, answered by Robbert.
Is it possible to modify and connect the units so that the outputs face in opposite directions?
The black casing is not perfectly mirrored, so the internal mechanism cannot be rotated. The only way would be to rotate the distributor 180 degrees and make a cross-connection using two cables, but those cables would need to be thick enough to handle the power, which will be a tight fit inside the enclosure.
Can you provide a link or the specific model name for the fuses you used?
I used Adler Ef3 fuses.
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