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Electrical Symbols For Electrical Schematic Diagrams

> Edraw Symbol > Electrical Symbols For Electrical Schematic Diagrams
Posted by James Freeman | 01/12/2021

Part 1: Electrical and Electronic Symbols

Electrical symbols virtually represent the components of electrical and electronic circuits. This article shows many of the frequently used electrical symbols for drawing electrical diagrams. Though these standard symbols are simplified,the function descriptions can make you understand clearly.

Below lists the most commonly used electrical and electronic symbols that can help you get started quickly.

Name Electrical Symbol Alternate Symbol Description
ground/earth ground symbol This symbol identifies an earth(ground) terminal used for a zero potential reference point and electrical shock protection.
equipotential equi-potentiality symbol equipotential symbol It is a symbol to identify parts with the same voltage (i.e., the same electrical potential or equipotential). Since equipotential surfaces all have the same voltage, you won't be shocked if you touch two such surfaces unless you are also touching another part with a different potential from the first two parts.
chassis ground chassis symbol alternate chassis symbol It is a link between different metallic parts of a machine to ensure an electrical connection between them. It must not be considered as a link to the earth.
battery battery symbol battery symbol alternate It is a device that consists of one or more electrochemical cells with external connections to empower electrical devices and generates constant voltages.
resistor resister symbol resister symbol alternate It is an electrical component that reduces the electric current, for example, to limit the current passing through an LED. A resistor is used with a capacitor in a timing circuit.
attenuator attenuator symbol attenuator alternate It is an electronic device that reduces the power of a signal with appreciably distorting its waveform, which is the opposite of an amplifier.
capacitor capacitor capacitor symbol It is a device with two terminals, which stores electric energy. The effect of a capacitor is known as capacitance. It can also be used as a filter to block DC signals but pass AC signals.
accumulator accumulator symbol It is an energy storage device that accepts, stores, and releases energy, increasing or relieving pressure in the system.
antenna antenna symbol An antenna also knows as an aerial, is a device designed to transmit or receive electromagnetic (e.g., TV or radio) waves.
loop antenna loop antenna symbol A loop antenna is a radio antenna consisting of a loop (or loops) of wire, tubing, or other electrical conductors with its ends connected to a balanced transmission line.
crystal crystal crystal symbol A crystal oscillator uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with an exact frequency.
circuit breaker circuit breaker A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
fuse fuse symbol fuse A fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit.
ideal source ideal source ideal source symbol An ideal voltage source is a two-terminal device that maintains a fixed voltage drop across its terminals. It is often used in the simplified analysis process of a real electric circuit.
generic component generic component symbol generic component alternate
transducer transducer symbol transducer alternate A transducer is a device that converts energy from one form to another. Usually, a transducer converts a signal in one type of power to a signal in another.
inductor inductor symbol more inductor symbol A coil of wire creates a magnetic field when current passes through it. It may have an iron core inside the coil. It can be used as a transducer converting electrical energy to mechanical energy by pulling on something. It is a passive two-terminal electrical component used to store energy in a magnetic field.
half inductor half inductor symbol
pickup head pickup head symbol pickup head symbol alternate
pulse pulse pulse symbols alternate
saw tooth saw tooch line
step function step function step function symbol
explosive squib explosive squib symbol Explosive squib is often used on stage and film to trigger various special effects.
sensing link squib sensing link squib symbol
squib igniter squib igniter symbol
surge protectors surge protectors symbol more surge protectors symbol

surge protectors symbol alternate

Surge protectors protect your electronics from power surges in your electrical system.
instrument indicator symbol indicator symbols For example, a voltmeter is an instrument used for measuring the electrical potential difference between two points in an electric circuit. The wattmeter is an instrument for measuring the electric power in watts of any given circuit.
material material symbol more material symbol
delay element delay element symbol more delay element symbol The delay element provides a specified delay between the actuation of the propellant-actuated devices.
permanent magnet permanent magnet A permanent magnet is a material or object that produces a magnetic field.
magnet core magnet core
ferrite core ferrite core ferrite core symbol
igniter plug igniter plug symbol
bell electrical bell symbol bell symbols The electric bell is found in an ordinary house doorbell, and when activated, it makes a ringing sound.
buzzer electrical buzzer symbol buzzer symbol An electrical buzzer is similar to the bell that makes a constant buzz noise instead of a single tone or bell sound.
thermal element thermal element symbols
thermocouple thermocouple thermocouple symbols
thermopile thermopile symbol
lamp lamp lamp symbols A transducer converts electrical energy to light, used for a lamp providing illumination, for example, a car headlamp or torch bulb.
fluorescent lamp fluorescent lamp fluorescent lamp symbol
speaker speaker symbol A speaker can take digital input and turn it into analog sound waves—one of the most important parts of a wide range of electrical products like TVs and telephones.
microphone microphone microphone symbols
oscillator oscillator symbols It produces a repetitive electronic signal, often a sine wave or a square wave.
AC source AC source symbol AC source symbol Alternate Alternating Current, continually change direction.
DC source DC source DC source symbol Direct Current, always flow in one direction.

Each electrical component may have several representations as the electrical symbols can vary from country to country nowadays. Some electrical symbols become virtually extinct with the development of new technologies. In cases where there is more than one universal electrical symbol, we have tried to give an alternate representation.

Part 2: How to Use Electrical Symbols

It is easy for you to create an electrical diagram when you know where to find thousands of electrical symbols. You can watch the video below and learn how to create an electrical circuit diagram. Alternatively, you can follow the instructions of words and pictures step by step.

Step 1: Launch EdrawMax on your computer. An extensive collection of electrical diagram templates can be found in the Electrical Engineering category. Click the icon of Basic Electrical to open the library that includes all symbols for making electrical diagrams.

Engineering Category

Step 2.1: As you are into the workspace of EdrawMax, drag the symbol that you need directly onto the canvas. You can resize the selected symbol by dragging the selection handles. A double-sided arrow shows the direction to which you can move the mouse, and you can only move the symbol when a four-direction arrow appears.

circuit diagram

Step 2.2: You can also change the shape of the symbol via the floating menu/action button. It shows when the symbol is selected or when the pointer is over the symbol. For example, the resistor can have 12 kinds of variations.

Variable Resistor

Step 3: When your electrical diagram is complete, you can export it to JPG, PNG, SVG, PDF, Microsoft Word, Excel, PowerPoint, Visio, HTML with just a single click. So you can share your drawings with people who don't use EdrawMax with no need to looking for ways of converting file formats.

save and export file in EdrawMax

Part 3: More Electrical Symbols

bulbCircuit Schematic Symbols

bulbLogic Gate Symbols

bulbSwitch Symbols

bulbSemiconductor Symbols

bulbTransmission Path Symbols

bulbQualifying Symbols

bulbIntegrated Circuit Component Symbols

bulbTerminal and Connector Symbols

Get Started! You Will Love This Easy-To-Use Diagram Software

EdrawMax is an advanced all-in-one diagramming tool for creating professional flowcharts, org charts, mind maps, network diagrams, UML diagrams, floor plans, electrical diagrams, science illustrations, and more. Just try it, you will love it!