A threshold that indicates the power consumption of
the load is nearing a low consumption condition. It is
represented in Amps. A warning will be issued when the
load is less than the threshold value.
A threshold value of 0 Amps effectively disables this
warning.
Maximum value must be less than the value returned
by the rPDUOutletConfigMonitoredNearOverloadThreshold OID.
0 will be returned if the unit is not Outlet Monitored Rack PDU.