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View Full Version : RCD's Selection Criteria and operating principles



Grizzly
31-01-2008, 06:47 PM
ANYONE EVER WONDERED ABOUT RCD's?
CHECK OUT THE LINK BELOW
http://www.memonline.com/rcd1.html
Grizzlyhttp://www.refrigeration-engineer.com/forums/images/icons/icon14.gif

Brian_UK
01-02-2008, 12:00 AM
On a linked matter...

We had notification today about counterfeit MCBs coming onto the UK market. Believed to originate in China - surprise.

When opened up all that was inside was a straight switch, no trip mechanism at all.

So take care folks.

Grizzly
01-02-2008, 12:11 AM
On a linked matter...

We had notification today about counterfeit MCBs coming onto the UK market. Believed to originate in China - surprise.

When opened up all that was inside was a straight switch, no trip mechanism at all.

So take care folks.
were they badged up as a particular brand Brian?
Grizzly

Brian_UK
01-02-2008, 01:14 AM
I haven't found that out yet, I'll try and get some more info.

Brian_UK
05-02-2008, 12:40 AM
Received the official Alert documents today about the dodgy MCBs; unfortunately the copy is not good enough to repeat here.

They are made to imitate Merlin Gerin, the picture shows ..
1 x Merlin Gerin Multi 9 K60N B6 MCB
1 x Multi 9 C45N C10 MCB

When these units were drilled open they were found to NOT contain an overload element or any short circuit capability, they are simply a switch :eek:

So all I would suggest is that you take extra care when at your local wholesaler, he may not know what he has been sent.

edit: If I did what I ask others to do then this would have been included first time.....

Checking with Google brought up these pictures..

http://www.gtectraining.co.uk/more_info_extra.asp?current_id=121