Any changes in wiring should be made after making sure there is no voltage in the electrical system.
Install the device in a protected, dry place inside the house.
Device installation should be done carefully by a qualified electrician.
Do not connect devices that exceed the maximum indicated load to the device.
Use the device only with an electrical grid and with appliances that comply with all applicable standards. A short circuit in the power grid or in any appliance connected to the device may damage the product.
Connect the device using only the indicated methods. Any other way may cause damage and void the warranty.