question

Robert avatar image
Robert asked

Broken M8 Bolt at DC connection

Hello,

did somebody install a Phoenix Smart Inverter with 24/5000 in the past and check the DC Connection Bolts?


I wanted to install a brand new Phoenix yesterday.

But it wasn't possible.

Both positive bolts got loose.

The torque was only 10Nm.

The negative bolts are super strong. 12Nm without problems.

Because only 90cm of length is used, Instead of 2x 95mm² wire, 2x 70mm² for positive and negative with M8 Terminals from Klauke.

Absolut no tension or spring force on the wire.

(i use super flexible wire from Titanex H01N2 D70)

After removing the Phoenix from the wall i wondering why the Busbar what´s goes inside is less than 2mm thick and the smallest cross-section is only 20x2mm

I hope my dealer can order a spare part.

Best regards Robert

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Phoenix Inverter
20230220-172925.jpg (2.7 MiB)
20230220-173255.jpg (3.1 MiB)
20230220-173258.jpg (3.3 MiB)
20230220-173555.jpg (3.2 MiB)
20230220-174500.jpg (2.6 MiB)
20230220-174247.jpg (428.2 KiB)
20230220-173011.jpg (2.3 MiB)
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3 Answers
Michelle Konzack avatar image
Michelle Konzack answered ·

Also wenn ich mir 20230220-173555.jpg (3.2 MiB) ansehe, bezweifle ich die 10Nm...


Die Platte ist complete verbogen.

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Robert avatar image
Robert answered ·

Hallo, um das Kabel mit dem losen Kabelschuh zu entfernen musste der lockere Bolzen irgendwie aus dem Teil raus.

Versuchen Sie sich die Situation praktisch vorzustellen.

Das Kabel hängt auf dem Bolzen.

50% des Bolzen sitzt fest in dem Kabelschuh.

Der Bolzen noch zu 50% in der Kupferplatte.

Wie demontieren Sie jetzt das Kabel?

Vergessen Sie dabei nicht.

Ein 70mm2 Kabelschuh hat etwa 4mm Stärke. Das Kupferblech 2mm

Verbogen hat es das Blech bei der Demontage des zweiten Plus Kabels.


Grüße Robert Stückle




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Robert avatar image
Robert answered ·

Hallo, good news.

I got a new Inverter today.

Victron changed it 1:1 without trouble.

In front of my dealer I installed the four 70mm2 wires.

Negativ terminal 12Nm no problem, like the old one.

But both positiv terminal bolts felt so much softer.

Needs more turns as well.

But in the end 12Nm was reached.

Best regards Robert

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Craig Chamberlain avatar image Craig Chamberlain commented ·
That's great news @Robert, glad to hear that Victron did the right thing here and replaced your inverter. I hope you don't have any more issues. (fingers crossed!) :)
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