This read-write integer, in hundredths of an amp (0-2000, i.e. up to 20.00A) with 0 meaning the limit is disabled, sets the early warning threshold for unexpectedly low current draw on the Z-X phase-pair of circuit 2. This gives an administrator a heads-up that load on circuit 2's Z-X leg is drifting down, perhaps because a device is idling or partially failing, before it falls all the way to the harder zx2MinCurr floor. For example, setting zx2WarnLoCurr to 200 (2.00A) would warn when Z-X's draw dips under 2 amps, ahead of any 1-amp zx2MinCurr alarm.