20 Wiring Diagrams for Electrical Projects [Editable Templates]

Wiring diagrams are essential for any electrical project, big or small. Learn some tips to create them and check out these wiring diagram examples for residential, appliance, and automotive applications.


A wiring diagram represents the electrical connections between components in a circuit. It shows the layout of the parts and the wires that connect them. Wiring diagrams help to ensure the safe and correct design and installation of electrical circuits. You can also use them to troubleshoot and repair existing electrical systems.

Different wiring diagrams include residential, appliance, and automotive. If you are looking for examples, keep reading to use the correct ones for the project you are working on.

basic house wiring diagram

Do you need help creating electrical wiring diagrams? These are essential for any electrician but can be time-consuming to design. Save time and use these electric wiring diagram examples from the Wondershare EdrawMax Templates Community.

As a dedicated diagram maker, Wondershare EdrawMax supports 280+ types of diagrams and offers 15,000+ ready-made templates. Download it and visit the templates community to find the one most suitable for you.

Electrical Outlet Wiring Diagram

This basic electrical outlet wiring diagram shows how electricity comes from the power company to your home. First, it goes through a fuse box and then spreads to different areas in your home. Circuit breakers stop too much electricity from going through these circuits.

There's a 32A ring circuit for most plugs and lights, a 20A radial circuit for appliances like the cooker, and a 6A lighting circuit for outdoor lights. The main earth is a safety feature that prevents electric shocks if something goes wrong.

Electrical Switch Board Wiring Diagram

In this electrical wiring diagram for a ceiling fan and a light bulb, the power comes from the electrical board through the phase wire and connects to the switch. The switch sends the power to the fan motor and light bulb if turned on.

The neutral wire returns the power from the fan and light bulb back to the electrical board. The ground wire provides a safety connection to the electrical board.

Single Room Wiring Diagram

Are you curious about how a single room's electrical system works? It shows a basic electrical wiring diagram for a bedroom with a ceiling fan and two light bulbs. The power comes from the electrical board through the phase wire and connects to the switchboard.

Next, the switchboard sends the power to the ceiling fan and the two light bulbs. The neutral wire returns the power from the fan and light bulbs back to the electrical board.

Swimming Pool Electrical Wiring Diagram

Swimming pools require a unique electrical setup due to their proximity to water. This electric wiring diagram shows a heating and cooling system with a water heater. The system uses solar collectors to heat water, which the tank stores. Domestic hot water, space heating, and pool heating will use the heated water. This template diagram includes a natural gas boiler as a backup heat source.

Electrical Distribution Board Wiring Diagram

Power from the utility flows through a 2-pole MCB for overload protection, then an ELCB for safety. ELCB sends power to the house via single-pole MCBs, each guarding against overloads and shorts. The neutral bus bar connects all the circuits' neutral wires, and the earth bus bar connects all the ground wires. It prevents shocks and fires.

House Wiring Plan Example

Here is an example of a wiring diagram for houses. However, the actual wiring in your home may be more complex. Here, the power comes from the breaker box and goes to the distribution box. From there, it goes to the switch for the ceiling fan and light bar. The switch then sends power to the fan and light bar. The doorbell is wired directly to the breaker box.

Single Phase House Wiring Diagram

The single-phase house wiring diagram shows electricity distribution to different parts of the house. Power comes from the electrical pole and enters the distribution board. The distribution board has two bus bars: one for the neutral wire and one for the earth wire. The power from the distribution board is then distributed to the different rooms in the house, each on a separate circuit.

Electrical Water Heater Wiring Diagram

The power starts from the wall outlet, then goes through a switch, and afterward, to the thermostat. The thermostat detects water temperature and switches on the heating element when needed to warm the water. The heating element heats the water until it's the right temperature.

A safety feature called the thermal cutout prevents the water heater from getting too hot. The heating indicator tells you when the heating element is active.

Arduino Servo Tester Wiring Diagram

It exemplifies how wiring diagrams extend beyond traditional home electrical systems. Arduino servo testers are handy tools for precisely controlling servo motors in engineering projects. It's crucial when you need exact motion control.

Use a jumper cable for this. Then, connect the servo motor's power, ground, and signal pins to the Arduino board: power to the 5V pin, ground to the ground pin, and signal to a digital pin on the Arduino.

Two-Way Switching Wiring Diagram

The two-way switching wiring diagram shows how to connect two switches to control one light bulb. The power comes from the source and goes to both switches. The light bulb is connected to the output of both switches. It lets you turn the light bulb on and off from either switch. This electrical wiring diagram is a common setup in staircases and hallways.

3 Wire Alternator Wiring Diagram

This diagram shows a standard three-wire alternator setup. The alternator creates electricity by spinning a wire coil in a magnetic field. A voltage regulator manages the output. The battery charging wire links the alternator to the battery, transferring power. An indication lamp signals issues, and the ground wire connects the alternator to the vehicle's chassis, allowing current to return to the battery.

4 Wire Alternator Wiring Diagram

The alternator produces power for the vehicle's electrical components in this wiring diagram. The voltage regulator maintains safe output voltage. The engine control module oversees and adjusts the alternator output. The current sensor measures electrical system draw and reports it to the engine control module.

Stage Wiring Diagram

Stage wiring diagrams are essential for anyone working with sound and lighting equipment on stage. Its applications include live music performances, theatrical productions, and more. The sound mixer takes input from microphones and other sources and then sends the mixed signal to the amplifier. The amplifier amplifies the signal and sends it to the speakers.

Lamp Wiring Diagram

When the one-gang switch is turned on, electricity flows from the power source to the tube lamp through the switch. The starter creates a spark, which starts the tube lamp. Once the tube lamp is started, the ballast regulates the voltage and current supplied to the tube lamp.

Starter Wiring Diagram Example

This electrical wiring diagram shows how to connect a circuit breaker to an operator control station. The circuit breaker protects the operator control station and load from electrical overload. Its applications include garage door opener motors, assembly line conveyor belts, and commercial elevators.

4 Lights Godown Wiring Diagram

A Godown wiring diagram demonstrates how to connect multiple lights using two-way switches. It allows control of each light from either switch. While this electrical wiring diagram displays four lights, the same idea applies to connecting any number of lights in this manner.

Doorbell Wiring Diagram

A doorbell wiring diagram illustrates the electrical connections for a doorbell system. It typically shows a transformer, doorbell button, chime, and wires. When the button is pressed, it completes the circuit, sending power from the transformer to the chime. It produces a ringing sound, signaling someone is at the door.

Teltonika TFT100 Wiring Diagram

The Teltonika TFT100 wiring diagram shows how to connect the TFT100 GPS tracker to a power and data source. The TFT100 will start tracking the location of the vehicle, asset, or person once connected.

Ceiling Fan Wiring Diagram

A 4-wire ceiling fan wiring diagram is used to install and connect a ceiling fan with separate controls for the fan's motor and the light fixture. This type of wiring allows you to control the fan and light independently.

3-Way Switch Wiring Diagram

The 3-way switch wiring diagram shows how to connect two 3-way switches to control a single light fixture. The two switches can be located at different ends of a room or hallway so that you can turn on and off the light from either location.

Part II. How To Customize a Wiring Diagram Template?

Designing and analyzing electrical systems can be complex. But EdrawMax makes it easy with its professional electrical wiring diagram templates. With EdrawMax's built-in vector symbols and drawing tools, you can create diagrams in minutes, even if you're a beginner. Here's a step-by-step guide, and learn how to create a wiring diagram using this diagramming tool.


Step 1: Download and install EdrawMax or try it online. Log in with your Wondershare ID or an account of Google, Facebook, or Twitter.


On the homepage, go to Open to find the eddx file you just downloaded or click Templates in the left-side navigation pane and enter a term in the search field to select another template.


Click Use Immediately to select the wiring diagram template.


Drag and drop the symbols from the More Symbols left panel to the canvas.


Select a line or shape in the diagram to open the floating bar. You can also use the color palette at the lower navigation pane to change the color of a symbol.


Once done, click File in the upper navigation pane. Then, go to Export & Send, select a file format, then click Export.


Part III. Tips for Making a Wiring Diagram

How can you make a wiring diagram that is clear, accurate, and easy to understand? It is quite simple if you follow a few basic tips.

  • Use a standard set of electrical symbols. It will make your diagram easier to understand for others who are familiar with electrical wiring.
  • Label all the components in your diagram. It will help you to identify the components and to troubleshoot any problems that may occur.
  • Use different colors for each type of wire. It will make it easier to follow the wiring in your diagram.
wiring diagram for house


Making a wiring diagram first is always a good idea when working on an electrical project. It will help you to prevent mistakes and ensure your project is safe to implement.

Now that you know how to create wiring diagrams, it's time to put your skills to the test! Start working on your next electrical project today and ensure to use EdrawMax. It is intuitive and easy to use for beginners like students. But it's also powerful enough for professional electrical engineers. With EdrawMax, you can create wiring diagrams for any electrical system, from simple home circuits to automotive.

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Alayna Margaret
Alayna Margaret Jul 04, 24
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