Yes the iLD RCCBs is compliant with 2P+N 230/400V networks.
You must connect neutral terminals (N) and the last two phases (5-6 & 7-8, for test button function)
The replacement to the above unit is the Acti9 iLD RCCBs. These are also compatible with 2p+N wiring systems. See below link to instruction sheet.
https://download.schneider-electric.com/doc/QGH86351/QGH86351-03.pdf
Released for: Schneider Electric Ireland

