On Sat, 14 Dec 2019 12:02:09 -0600, Mark Lloyd
wrote:

On 12/13/19 5:25 PM, Clare Snyder wrote:
On Fri, 13 Dec 2019 13:01:26 -0600, Mark Lloyd
wrote:

On 12/12/19 1:18 PM, trader_4 wrote:

[snip]

Again, only with some of the devices, eg a wall switch. There is no current
through the load with the appliance modules, when it's off.

I found an online schematic of an appliance module. Notice what is
connected to the HOT side of the output (the relay is not the only thing).

[snip]
Of course not - but check the scematic - is the "not the only thing"
part IN SERIES with the terminals of the relay???????.

Parallel.

Is it in series
with the load with the relay contacts open?????

Yes. Line (hot) in, those components, Line out, load, neutral.

Forward the link to the schematic

Sorry for the omission. Here it is:

http://www.edcheung.com/automa/am486.gif

The receptacle is at the upper right, and the relay to the left of it.
Note the 2.2K resistor and 1N4004 diode between line in and line out
(the internal ground indicated by the triangle symbol is line not
neutral or ground). The components connected to point A seem to be to
detect voltage drop.
That #3 circuit was optional - local current sense - and not enabled
(or installed, even) in many versions.