Update:- There IS a very minimalist wiring guide in the setup instructions that clearly shows two brown wires going to both the live and the earth terminals. If wired like that, the case of an earthed appliance plugged into the socket would become live at full mains voltage.
Note that while there is a metal mounting plate, it has a painted surface, so it does not make a good connection to the earth/ground tabs at the sides.
This is a smart socket that is sold under different brands. As it's been recalled I thought I'd take a look at it to see if we could work out why.
I didn't test it under heavy load, so I don't know if the recall is purely down to the obvious grounding oddity, wiring diagram error or other aspects too. But the circuitry actually looks well designed, notably the use of a synchronous rectifier, basic filtering and good electrical separation.
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tcp smart scoket wifi recall teardown
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