Robust and High Current Smart-Plug

A smart plug providing an alternating current (AC) electrical signal to an external electrical device through an electrical path comprising a live (L) lead and a neutral (N) lead, the smart-plug comprising:

• a housing;
• an electrical outlet accommodating an electrical plug of the external electrical device;
• a main printed circuit board (PCB) comprising:
• a communication module;
• and
• an electrical power measurement module measuring a measured power usage of the external electrical device through the electrical outlet;
• the communication module sending data about the measured power usage over a communication channel;
• a relay PCB comprising a relay to control an electrical load provided by the external electrical device;
• a power PCB providing electrical power to the main PCB and regulating the AC electrical signal to the external electrical device;
• and
• the main PCB, the relay PCB, and the power PCB being arranged in three dimensional manner within the housing of the smart plug.