If installing a whole house surge protector, you will need to wire it into your home's electrical panel. A professional licensed electrician can do this. The surge protector should mount to the outside of the panel or within eyesight so you can see the LED indicator lights. Typically, the whole house surge protector wires into a 240v 50-amp breaker and the neutral bar. Installation methods and breaker sizing may vary, so check the manufacturer's instructions for your specific instructions.