Athom V2 us shutdown under heavy load (about 1100 watts) switch is rated 16 amp so suppose to handle 1800 watts.
This happened with Athom v1, so I decided to used the upgraded version V2
Seem more robust but as soon as the load reach around 1100 watt: the swith reboot (cutting the power to the load)
Removing the plug: the outlet can easily handle the load.
The load is a 120 volt 9000 btu Heat pump driven with autotransformer to 240v , the heat pump in heating mode is rated at 907 watts. (adding 30 watt idel autotransformer and 10% transformer lost) I run at about 1100 watt. That always the latest reading before shutdown. The Load run always about 1 minute at this level before shutdown!
My best regards
Gaetan
1100 watts may be the last reading, but perhaps it spiked and failed before a new accurate reading was reported. Also, thinking if the athom reports watts as an average wattage for each of some small period of time rather than peek watts, it would not accurately reflect a very high but momentary spike. Might be worth getting a dedicated load sensor between the outlet and the heat pump.