Relay Arteche RF4R 110-125 VDC is switch (Switch) are operated electrically and is an Electromechanical components (Electromechanical), which consists of two main parts namely Electromagnetic (Coil) and Mechanical (set Contacts Switches / Switch). Principle of Electromagnetic Relay use to move the switch contacts so that the electric current is small (low power) can conduct electricity with a higher voltage. For example, with the use of Electromagnetic Relay 5V and 50 mA are moving Armature Relay (which serves as a switch) to conduct electricity 220V 2A.
Basically, Relay consists of four basic components, namely: Electromagnet (Coil) armature Switch Contact Point (switch) Spring