3 pole incoming switch

[markharris]

hello guys,
A 100a 30ma TP & N incoming switch for a three phase board.....is that 100a for each phase, or 100a for all three together?
Many Thanks

 

[Specialist]

100 amps per phase.

 

[davelerave]

it's a 4-pole rcd with poles rated at 100amp each (per phase)by the sound of it

 

[davelerave]

Ah I see
we dont have TT here so I wasnt familiar with the 4pole rcd as a 3phase incommer

 

[Knobhead]

Sorry Dave, but where does RCD's or TT come in to it?

 

[Specialist]

Sorry Dave, but where does RCD's or TT come in to it?

100 amp 30 milliamp so sounds like an RCD but don't know about the TT side of it:lol:

 

[Knobhead]

Sorry Dave missed the 30mA bit.

 

[davelerave]

its an incommer for TT supply isnt it?

 

[davelerave]

I think I see now it may not even be TT at all

We would use separate isolating switch and 4pole rcd in that-theyre never used for both functions over here-never mind

 

[Specialist]

Never mind Dave, the confusion sets in with us all eventually:tounge_smile:

 

[davelerave]

the rcd incomer is a bit of an alien concept to me i'm afraid