You might want to have a look at this thread. There are two things at play here. One is that ZEN15s have in the past reported absurdly high values for power .. like tens of thousands of watts. This may have been addressed in a firmware update at some point.
The other issue is the so-called "overload protection". My Bosch dishwasher routinely tripped that, despite it being rated at 12A and being on a 15A circuit breaker. There is no way no how that the dishwasher was pulling more than 16.5A for over 5 seconds. Against ZOOZ's strong recommendation, I disabled this so-called "protection" and all has been well since. It wasn't protecting the dishwasher, or the wiring, or the circuit breaker .. only the ZEN15 itself.
