All Solar Analytics Hardware can be easily converted from 1 Phase to 2 Phase or 3 Phase and vice versa.
This short video shows how to convert the Solar Analytics wiring harness from 1 Phase to 3 Phase.
To convert 3 phase to 1 phase, we just need to reverse the above process. For 1-phase installations using the KR-63, the 1-phase pre-wired tail can be purchased from Solar Analytics. Alternatively, you can easily re-wire the phoenix plug by removing the white (B) and blue phase (C) wires and bridge the phases as shown below,