Is the use of other fuses as the Mega fuse allowed in the Lynx Distributor

DIY
1

I noticed in other fora that people are using Addler EF3 fuses in the Victron Lynx Distributor.

The manual of the Lynx Distributor mentioned the following:

“The Lynx Distributor is designed to hold MEGA fuses. These need to be purchased separately.”

Is there someone who knows Victron’s opinion on this. Or the opinion of an insurance company? I know that for commercial use this is problematic but does this also apply for private use?

My point of view is that you should use the correct fuse holder.

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2

Mega fuses are rated as well by their amps rating, as by their voltage 12/24/48(70V).
As far as I can see the Addler fuses are made for 200V (315V max).
You gave the answer your self: use the correct Mega fuses in a Lynx distributor.

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3

@Theo this question is not applicable for my situation as I’m using Class T fuses in a Class T fuse holder.

The intent of this question was to obtain information what the risks are related to the insurance of a home. I’m warning people not do it. But in case I have more arguments it would be easier to convince them.

4

Fuses need to be sized as per the wire size. They must blow before the wire burns. I don’t see a reason you can’t use another brand of fuse. Just size it correctly.

5

I have no idea how insurance companies deal with this matter, but in general I think they will refer to national regulations (NEN, NEC, IEC, etc.) and the installation instructions of the product.

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6

Fuses may be designed for higher voltage. They just must not be designed for lower voltage. So the Adler are OK! They are better then Mega fuses because of the higher separation capacity

7

Fuses with higher voltage rating may have higher resistance and therefore more voltage drop at a given current. This may make their use in lower voltage applications less than ideal.

Also note that many fuses LOOK like they are the same size but slight differences in terminal spacing and fuse body may not allow the fuse to fit in the holder properly.

As I recall, there are many manufacturers of mega fuses up to 24 or 32 volt but I was not able to find mega fuses rated for 48 volt systems other than those supplied by Victron.

8

The Adler are tested by Victron specialists, f.e. Jens Rehpöhler from Youtube Channel "Meine Energiewende "

9

I have no doubts on the safety of these fuses. But I’m curious what the opinion of the insurance company will be in case needed. You are not following the instructions of a CE certified device.