Electrical and Electronics Symbols and Meanings Chart - Electrical Symbols - Switches Symbols - Relays - Earthing - Inductors - Motor and Transformer - Electronics Symbols - Resistance - Diode - Capacitor - Sources - Meter Symbols

Oct 12, 2026

Uploaded by McGucket

Electrical and Electronics Symbols and Meanings Chart organizes common circuit symbols into practical categories for wiring, switching, and component identification. It explains wire connection crossing states, switch types such as SPST and SPDT, momentary push buttons, DIP switches, relay behaviors, and earthing references including earth ground, chassis ground, and digital ground. It also covers inductors, motor and AC transformers, resistance elements, diodes and LED types, capacitors and variable capacitance, sources like voltage and current, and key meter symbols for measuring voltage, current, resistance, and power.

LanguageEnglish

CategoryGeneral

FormatPDF

Pages13

Reading Time5 min

AccessFree to download

Electrical Symbols

Wires Symbols

Switches Symbols

Relays

Earthing

Inductors

Motor and Transformer

Electronics Symbols

Resistance

Diode

Capacitor

Sources

Meter Symbols

[www.edrawmax.com](www.edrawmax.com) Electrical and Electronics Symbols and Meanings Chart Electrical Symbols Wires Symbols | Symbol | Name | Description | | --- | --- | --- | | | Electrical Wire | It is the symbol that is used to represent a wire. | | | Connected Wires | This Symbol represents the wire connected crossing. | | | Not Connect Wires | This Symbol shows that wires are not connected on crossing. | Switches Symbols | Symbol | Name | Description | | --- | --- | --- | | | SPST Toggle Switch | It is the symbol of a switch that disconnects current when open. | | | SPDT Toggle Switch | This Symbol of switch selects between two connections. | [https://www.edrawmax.com/article/electrical-and-electronic-symbols.html](https://www.edrawmax.com/article/electrical-and-electronic-symbols.html) 1 [www.edrawmax.com](www.edrawmax.com) | | Push Button ( N.O) | It is a symbol that denotes Momentary switch-normally open. | | --- | --- | --- | | | Push Button Switch ( N.C) | This denotes the symbol of a Momentary switch-normally closed. | | | DIP Switch | It is the symbol of the DIP switch which is used for onboard configuration. | Relays | Symbol | Name | Description | | --- | --- | --- | | | SPST Relay | This shows the symbol of relay that close connection by an electromagnet. | | | SPDT Relay | This shows the symbol of relay that open connection by an electromagnet. | [https://www.edrawmax.com/article/electrical-and-electronic-symbols.html](https://www.edrawmax.com/article/electrical-and-electronic-symbols.html) 2 [www.edrawmax.com](www.edrawmax.com) Earthing | Symbol | Name | Description | | --- | --- | --- | | | Earth Ground | This Symbol is used for zero potential reference and electrical shock protection. | | | Chassis
Ground | This symbol shows the wire Connected to the chassis of the circuit. | | | Digital
Ground | It refers to the reference voltage of digitalanalog if. | Inductors | Symbol | Name | Description | | --- | --- | --- | | | Indicator | Symbol of a Coil / solenoid that generates a magnetic field. | | | Iron Core
Inductor | It is the symbol of the iron core Inductor Which Includes iron. | [https://www.edrawmax.com/article/electrical-and-electronic-symbols.html](https://www.edrawmax.com/article/electrical-and-electronic-symbols.html) 3 [www.edrawmax.com](www.edrawmax.com) | | Variable
Inductor | It is the coil or solenoid that has a Variable magnetic field. | | --- | --- | --- | Motor and Transformer | Symbol | Name | Description | | --- | --- | --- | | | Motor | Symbol of motor, which changes electric energy to kinetic energy. | | | AC
Transformer | Transformer changes AC voltage from high to low or low to high. | Electronics Symbols Resistance | Symbol | Name | Description | | --- | --- | --- | | | Variable Resistance | It is the symbol of an adjustable resistor which has 2 terminals. | | | Potentiometer | It is the symbol of an adjustable resistor that has 3 terminals. | | | Trimmer
Resistor | It is the symbol of a trimmer which is also known as a Preset resistor. | [https://www.edrawmax.com/article/electrical-and-electronic-symbols.html](https://www.edrawmax.com/article/electrical-and-electronic-symbols.html) 4 [www.edrawmax.com](www.edrawmax.com) | | Thermistor | It is the symbol of a Thermal resistor that changes the resistance when temperature changes. | | --- | --- | --- | | | Photoresistor | It is the symbol of Photo-resistor-change resistance with light intensity change. | Diode | Symbol | Name | Description | | --- | --- | --- | | | Diode | Diode allows current flow in one direction only- left (anode) to the right (cathode). | | | Zener Diode | It allows current flow in one direction, but also can flow in the reverse direction when above breakdown volt. | | | Schottky Diode | Schottky diode is a diode with a low voltage drop. | | | Varicap Diode | This represents the varicap diode. Variable capacitance diode. | | | Light Emittin

FAQs

What do the wire crossing symbols indicate?

The chart distinguishes connected wires crossing versus not-connected wires crossing, clarifying whether the conductors are electrically linked at the intersection.

Which switch types are included and what are their basic functions?

It lists SPST toggle switches that disconnect current when open and SPDT toggle switches that select between two connections.

How are earthing and grounding symbols described?

It provides symbols for earth ground for zero potential reference and electrical shock protection, chassis ground for connection to the circuit chassis, and digital ground as a reference voltage for digital-analog circuits.

Oct 12, 2026

Uploaded by McGucket