PKDM5 and Neutral

Dear Dirk,

on page 26 of 'OI Manual' there's a drawing showing PE/Neutral/3Ph wiring to the board.
Is it necessary to have the Neutral wired or the controller can work even without it ?

Thanks !

Luca Gissi
ZA Italy

Dear Igissi,

the unit will also work without the neutral; the neutral is only to prevent leakage current to earth. If it is not connected it can happen that the rcd (residual current operated device) will switch if there are any additional devices with causes leakage currents.

regards
Dirk Rotering