But it will show only the terminal number or connection number in the component.įor example, just consider a circuit of the DOL (Direct on Line) starter, in the starter, the main components in Power Circuit are MCB, Contactor, and Overload relay. Parts in the wiring diagram are simply shown in blocks with no indication of the size or shape of the components. This wiring diagram will have the details such as the terminal identification numbers which enable us to wire the unit together. They are not the real components but their symbols.Īn electrical circuit diagram mostly uses the symbol of the components for the connection and the straight line indicates the conductor or wire which interlink all the components for performing the function.Ī wiring diagram is a drawing that shows all the wiring between the parts such as control or signal functions, power supplies and earth connections, and termination of unused leads and contacts.Īlso, the wiring diagram shows the interconnection between the terminal posts, blocks, plugs, sockets, and lead-throughs. It consists of components like Circuit Breaker, Contactor, an Overload relay in the power circuit, and Start & stop push buttons and a contactor coil in the control circuit. They usually show the detail of how an electrical circuit works.įor Example, below is the circuit diagram of a simple DOL (Direct on Line) starter which is used for starting the motor. Although you could wire up an assembly from the information given in it. It does not show the exact shape, size, or layout of the electrical components. Lines represent the functional conductors or wires which connect them together.Ī circuit diagram is derived from a block or functional diagram. Single Line Diagram (for 3 Phase) Circuit DiagramĬircuit Diagrams show how the electrical components are connected together and use the symbol to represent the electrical components.The different types of electrical drawings are: This electrical drawing mainly constitutes the electrical devices and their connections only. In today’s world, we use drawing to convey information about a piece of equipment in a form that all those involved in its production, installation, and service will understand.ĭrawing is also one of the tools for communication for sharing the information or knowledge or views of one person with another in a graphical form to get the job done in the manufacturing or production field.Īn electrical drawing is a type where the connection between the electrical equipment and devices will be denoted for the action of machinery and their maintenance activities.

In this article, we will discuss about the electrical drawings and types of electrical diagrams mostly used in the industrial sectors.

Simple electrical circuit diagram maker