[kb1jb1]

This is one thing I do not like about electronics controlling something or relying on the " computers" to do the work. They are reliable 95% of the time but it is the 5% that causes problems. They engineer things with tight tolerances so if there is any fluctuations in the installation you could have problems.

 

[kb1jb1]

I usually see those in hot tub control panels. Not a fan, but haven't seen one of those burn (yet).

These wall connectors could pull maximum current for 7 -8 hours or more while the hot tub has a thermostat that turns the heater on and off. My guess these pressure clips are not tested for long term maximum draw.