Today Electrical Engineering XYZ is going to share a technical white paper on Electrical Relays. Electrical Relays are the discrete electromechanical devices which have two conditions of working: “on” and ”off”. In this document basic introduction to the concept of relays is given. After going through this document you’ll be able to learn the basics of relays as well as the circuit diagrams of SPDT, SPST, DPDT relays, their configurations in ladder diagrams and PLCs. Download this free indenture and share with your circles as well.