i made up this circuit, to protect the input of the MCU. The switches pull to GND with 0 Ohm to 22kOhm, and this is also where the ESD would come in. The output_line also goes to a MCU input, and its the one i am not sure, if its protection is enough (current of R8 - D2 is representing the protection diode of the MCU). Is there something i can improve, or might there be an issue, i am not aware of?
