QUOTE(lencent @ Oct 23 2018, 10:17 PM)
Thanks for the response. I suspect my house is on 3 phase house wiring, is there anyway to confirm that? Phase 1 development does not mention about the wiring, but phase 2 development explicit mentioned 3 phase.
The 3 phase master circuit breaker is bigger with 3 ganged switch like thisNew housing is using RCCB not ELCB. The RCCB concept is comparing current going out to load and current return from load. If equal, then OK. If not it will trip. Some house wiring separates the 3 phase N, thus if you mix the L from other phase then return the current through N in another phase, the RCCB will trip. However, they may use common N for all. The MCCB in picture has 3 L out and 1 N. This I believe will have no problem. Probably some use 3 single phase RCCB, thus tis will cause trip. That is my understanding.
The 3 phase wiring will have 3 different L wire color like Blue, Yellow and Red. You can try connect. The worse is the RCCB will trip.
Oct 23 2018, 11:10 PM

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