Ferrit cores in a EV Victron charging station ?

I have found a loose Ferrit kernel (PN Wuerth electronic PN 74271132) in my new Victron charging box (PartNumber EVC300400300) when it was shipped to me. I could identify the loose part as the following :
https://de.farnell.com/wurth-elektronik/74271132/splitting-ferrit-m-kunststoffgeh/dp/1635618

Does anyone know to where (which cables) this part must be installed ?

Or has this been forgotten by someone during box assembly ?

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Lucian Popescu (Victron Energy Staff) ♦♦ commented · Jan 09 at 09:15 PM

Hi, it should be installed on the cable that powers the contactors coil

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helm Lucian Popescu (Victron Energy Staff) ♦♦ commented · Feb 13 at 01:27 AM

Thank you very much ! I had almost forgotten about this problem since I had to take the box with me to my other location where it was sitting on the shelve for a month before I came back to it today for installing it.

Of course it did not work as expected and I ran into two issues where I got stuck with , and were the first one might be related to the missing ferrit if this causes noise disturbing the WIFI. Here are they:

1. the Wifi on the box seems to have difficulties to connect to my LAN although I placed a WiFI AP / Repeater very close to it (1m) . The only network I can get it connect to is the HotSpot wifi of my phone. It could be also that this is unstable firmware (see my next issue)

2. I realized that the box must have had a really long shelvetime in the store since the Firmware version it displays is: V3.3/1.19-beta-14

So I looked for a firmware update function which is supposed to be under Backup ... and found NONE . Any idea on how to get latest firmware on it or should I bring back in to the dealer for that.

For reference here are: PN EVC300400300 , SN HQ22126UTPF

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