Mk 6400s RCD Connections

[Invisible-Man]

Hi,
Could anyone tell me what connections are what on the MK 6400s as is does not state on the unit itself, the top connectors are copper based and the bottom are siver in colour.

Many thanks

 

[horaceg]

Hi I/M,
In theory it does not matter however normally the incoming pair go in the top and the outgoing pair in the bottom.
Cheers
Horaceg

 

[Invisible-Man]

Hi I/M,
In theory it does not matter however normally the incoming pair go in the top and the outgoing pair in the bottom.
Cheers
Horaceg

Hi, what about positive and neutral, left or right or does this not matter.

Once again many thanks for your help

 

[Steve]

positive?

 

[Invisible-Man]

positive?

Live

 

[JohnD]

No it doesn't.

Except if it has a white earth wire, in which case it probably does. MEM ones come with the terminals marked L and N, Load and Live, and have brown and blue screw covers fitted.

If you look at the illustration in the catalogue (esp if they have a pic of one fitted in a split-load) you will see how they expect it to be fitted.

 

[Invisible-Man]

Thanks for that !

 

[Spark123]

Are the MEM ones now electronic RCDs JohnD?

I don't think it matters which way around the MK is wired. If the supply live is in the left on the top the load live must go in the left on the bottom, neutral supply in top right, neutral load in bottom right.

 

[Invisible-Man]

Are the MEM ones now electronic RCDs JohnD?

I don't think it matters which way around the MK is wired. If the supply live is in the left on the top the load live must go in the left on the bottom, neutral supply in top right, neutral load in bottom right.

Hi Spark123, yes I understood that the left would have to match the left, either live or neutral but was not too sure how important the supply and load was (top or bottom), also left or right for live or neutral.

Thanks

 

[JohnD]

I suppose... they all have the thin white earth wire which I believe is used for electronic DC sensing or something... it also says it works if supply neutral is lost. the RCBO pods have it as well as the 2P RCDs. They make left-handed ones for the AD non-split loads where it goes on the left hand side instead of a main switch.

 

[securespark]

The MEM ones are DC sensing, hence the earth wire. (Why isn't it G/Y?)

 

[RF Lighting]

(Why isn't it G/Y?)

Because its a funtional earth

 

[Taylortwocities]

If I remember the 6400S doesn't have a func. earth lead. Its the 100mA / 100A Time Delay fella and only has in and out for phase & neutral.

TTC

 

[Spark123]

Where does the term DC sensing come from? Is it because they are a type A RCD - Protection against AC fault currents and pulsating DC currents? Anyone got a schematic diagram, just curious to see what is inside them electronic RCDs?

 

[Invisible-Man]

If I remember the 6400S doesn't have a func. earth lead. Its the 100mA / 100A Time Delay fella and only has in and out for phase & neutral.

TTC

Yes you are 100% correct with your memory!