MERLIN GERIN Multi 9 4P RCD RCCB 100A 300mA

[mtraczykowski]

Does anyone know if there is a common problem with the Merlin Multi 9 RCCB 4 pole 100Amp 300mA, not tripping as we have replaced an existing unit with a new one but the issue is the same,

Many Thanks

Mark

 

[Plonker 3]

What tests have you carried to prove it doesn't trip?

 

[mtraczykowski]

The guy's have run through the full RCD sequence of tests, the only was to trip it is manually?

 

[Plonker 3]

Have they disconnected all loads from the RCD?

Are they testing on the load side of the RCD?

Have they tried to test it with a temporary test lead connected to it? As sometimes they wont test directly on to the terminals.

 

[mtraczykowski]

The unit is still situated in the Dis Board, they have tried the test on one of the local circuits (kitchen ring main),

No temporary leads will have been used,

 

[Plonker 3]

Well its worth trying it by disconnecting the loads directly on the terminals if that fails make a short testing lead up and try that.

 

[Plonker 3]

Another thought, thay are testing it on 300mA and not 30 mA arent they?

 

[Hawkmoon]

Another thought, thay are testing it on 300mA and not 30 mA arent they?

Good sug - that's the kind of silly --- mistake anyone might make!

 

[mtraczykowski]

He say's he has done it at 300mA, but he is going to try it again and come back to me cheers,

 

[Plonker 3]

Have they ramp tested it?

 

[mtraczykowski]

Thank you for you help pal, he has tested at 300mA and it is working fine, slight oversight on-site,

Cheers

 

[Knobhead]

My gast is flabbered, how in the name of god can anyone fall for that one?

For those with no grasp of the English language gast & flabbered equates to flabbergasted. Look it up in the OED.

 

[Deleted member 72666]

I fear a trip back to the wholesalers with 'egg' firmly on face, as no doubt they wont be cheap.

 

[Darkwood]

So has the Electrician now refitted the original one back in as i suspect their was nothing wrong with that one either or is he now going to rip the customer of replacing a part that probably was ok.... had he known what he was doing in the first place the customer wouldn't have been lumbered with an extra cost.

Im also Ghastly flabbered!

 

[Knobhead]

So has the Electrician now refitted the original one back in as i suspect their was nothing wrong with that one either or is he now going to rip the customer of replacing a part that probably was ok.... had he known what he was doing in the first place the customer wouldn't have been lumbered with an extra cost.

Im also Ghastly flabbered!

Now why did that go through my nasty suspicious mind?