SPD Mains Isolator wylex/Proteus

[davesparks]

I'm not sure I understand, you bring your tails from the meter into the top, then the 4 terminals at the bottom are linked so you can bring 2 sets of tails out to feed a consumer unit and a charger, instead of using Henley blocks. Why would I need to go to the top. What am I missing here?

Looking at the data sheet from your link in the first post the outgoing terminals are at the top of the unit on the SPD with the isolator connected to it via insulated busbars.

The smaller lid covers the outgoing side of these units.

The incoming side is covered by the larger lid which allows it to be sealed and made fully safe when being fitted as a supply isolator by the DNO etc.

Could you post a picture of the connections you are asking about, that should help clear up this confusion

 

[nicebutdim]

I'm lost but that's nothing new.

I was hoping you'd clear this up.

 

[davesparks]

They've twice asked why there are 4 cable entries on the bottom,

No they didn't, they asked why there are 4 terminals at the bottom, not cable entries.

 

[MJPD29]

I'm lost but that's nothing new.

So am i

 

[touchtoneboss6]

The one I had been given was a different make can't remember now, but similar set up, where does it state that supply side is to come through the bottom and not the top? The seal tabs are on both sides, if allowing supply through top entry and both bottom terminals being linked by a buzz bar it would allow for isolation of the the SPD and 2 sets of outgoing terminals.

I might be missing something here but I don't see why that wouldn't be ok.

 

[nicebutdim]

No they didn't, they asked why there are 4 terminals at the bottom, not cable entries.

I'm not entirely certain what they meant, but went with cable entries as no way they'd be trying to get 25mm tails into that SPD.

 

[nicebutdim]

View attachment 104819The one I had been given was a different make can't remember now, but similar set up, where does it state that supply side is to come through the bottom and not the top? The seal tabs are on both sides, if allowing supply through top entry and both bottom terminals being linked by a buzz bar it would allow for isolation of the the SPD and 2 sets of outgoing terminals.

I might be missing something here but I don't see why that wouldn't be ok.

If it's linked on the load side, then I can't see why terminals couldn't be used.

 

[westward10]

Ford electric orange.

 

[mainline]

View attachment 104819The one I had been given was a different make can't remember now, but similar set up, where does it state that supply side is to come through the bottom and not the top? The seal tabs are on both sides, if allowing supply through top entry and both bottom terminals being linked by a buzz bar it would allow for isolation of the the SPD and 2 sets of outgoing terminals.

I might be missing something here but I don't see why that wouldn't be ok.

I can't see any buzz bar

 

[nicebutdim]

Ford electric orange.

I'd have guessed signal orange.

I can't see any buzz bar

Proteus literature refers to the solid links as 'unique busbar connection'.