What is the relay 5 pins function?

A 5-pin relay typically includes three main terminals: the common (COM), normally open (NO), and normally closed (NC), along with two additional pins for the coil. The coil pins are used to energize the relay, allowing it to switch between the NO and NC states. When the relay is activated, the circuit connects the COM to the NO terminal, allowing current to flow; when deactivated, it connects to the NC terminal, interrupting the current. This configuration is commonly used in various applications for controlling devices or circuits.