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Iveco Laika Ecovip camper 1995; What is this part?
Topic Started: Sep 11 2016, 03:12 PM (724 Views)
colly77
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My camper base is a 40-12 Iveco. Installed is a part which following circuit description, should be a fuse of 50A. It is connected between the starter battery and a separating relais , between starter- and household battery.
When I measure it with a fluke it gives 7 Ohm.
Who knows wat it is?

Thanks, Colly77
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Cloverdale
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I'm not certain what your relay might be so what I have to say may be a load of rubbish.

However. On my campervan I have a similar arrangement and the Relay is Voltage Sensitive. We know them as a VSR. After using your starter battery the alternator will replace the battery energy you've used. Once that battery is full again (measured by it's voltage) the VSR switches over and allows the alternator to then charge your house battery. I think the VSR may also has a blocking diode to prevent power gong the other way, ie when the house battery is at a higher voltage than the starter battery, something you don't want.

I don't know what the circuit resistance might be.

I hope this helps but again warn you your issue could be totally unrelated.

Alan L
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colly77
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Cloverdale
Sep 12 2016, 02:59 AM
I'm not certain what your relay might be so what I have to say may be a load of rubbish.

However. On my campervan I have a similar arrangement and the Relay is Voltage Sensitive. We know them as a VSR. After using your starter battery the alternator will replace the battery energy you've used. Once that battery is full again (measured by it's voltage) the VSR switches over and allows the alternator to then charge your house battery. I think the VSR may also has a blocking diode to prevent power gong the other way, ie when the house battery is at a higher voltage than the starter battery, something you don't want.

I don't know what the circuit resistance might be.

I hope this helps but again warn you your issue could be totally unrelated.

Alan L


Thanks for your reply!

The connecting relay is a common 1$ relay without any intelligence. It makes the connection, by means of the D+ of the alternator. The connection via AMP connectors and connected between the + of both starter- and household-battery.
Nice brown coloured now, as the wheres where sometimes overloaded.
Following a circuit daigram there should be at each end between the batteries a fuse of 25 and/or 50 Amp. I could not find these parts. It is not the relay which is my question, but the part in the red circle....

Thanks, colly77
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graysworld
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Your photo is very unclear, can you upload a better one?

Graeme
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colly
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The picture is indeed not the best in the world, but at this moment I cannot take another picture.
The camper is thousends of miles further away....
Edited by colly, Sep 14 2016, 02:08 PM.
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Spooky_b329
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If it is installed on the link between the batteries, it is most likely a type of relay. Either a simple one switched by the charge light on the alternator, or a voltage sensing unit that might be separate that monitors the voltage at the starter battery.

Either way, it will connect the house/leisure battery to the alternator when the engine is running, both will generally switched as soon as the engine has settled into an idle after starting, I had the voltage sense type and it would normally switch within 10 seconds of starting even if the starter battery was in poor condition, as long as it can see a decent input from the alternator it will switch.

It should have a fuse by the starter battery before the relay, it should have another fuse the same just before the house/leisure battery, this is because if the wire is damaged in the middle and the fuse at the engine pops, there is still a short circuit from the leisure battery...both fuses need to blow to make the cable dead.
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