Esp8266 controlling a 15A 230v relay?

Refrigerators and washers as well have motors. Friges are usually less than a 1/4 while washers can be 3/4 HP. However, they don’t run continuously. They have internal switching and circuitry that mitigates the adverse effects of the motor.

That is if the motor is switched internally, these appliances do not expect to be connected to a switch. Cutting the power through a switch, while the motor is running can result in a voltage spike to the switch.

In general motors that are part of an appliance that come with a wall plug has mitigating circuitry. If it’s a power whip, like a pool pump or burner motor, It expects to be connected to a motor rated switch.

Thanks. :slight_smile:

Real motor / LED (inductive / capacitive) loads where the current leads the voltage or the voltage leads the current require a solid state SSR type device or a contactor. Contactors have 2 sets of contacts with a spring, so when one welds, it will still release with a twisting action. That’s what it does.


(credit: Bad Contactor Burned Contact Point Stock Photo 745596745 | Shutterstock)