Relay
5V Single-Channel Relay Module
Relay is an electromechanical device that uses an electric current to open or close the contacts of a switch. The single-channel relay module is much more than just a plain relay, it comprises of components that make switching
Relays and Contactors: Types, Working and Difference between them
Relays are basically switches which are primarily used for the protection of equipment. It generally uses two circuits – A control circuit and a power circuit.
12V Relay Switch
Relay Pinout Configuration
Pin Number
Pin Name
Description
1
Coil End 1
HK19F-12V DPDT Relay
DPDT Relay Pin Configuration
DPDT relay usually has eight pins. The default pin out of the DPDT relay varies depending on MODEL. Here we are taking HK19F-12V device as model.
5V 5-Pin Relay
Relay Pin Configuration
Pin Number
Pin Name
Description