Explain Electrical Ladder Diagrams

Ladder Diagram
••• Image by Flickr.com, courtesy of Marc Lacoste

Ladder diagrams are used to depict electronic control circuits in a simple form. These schematic diagrams resemble a ladder with rails and rungs. Special symbols are used to show the different components depicted on the diagram.

2 Components

Ladder diagrams usually display two different types of components: the power component and the control component.

Power Components

A power component on the diagram might be a motor. Other power components are protective devices such as fused relays or circuit breakers.

Control Components

The control rungs of the ladder show all the input and output devices that make the power components do their work. Control components include input devices which can either allow current flow or disrupt current flow and output devices.

Input devices

Input devices include switches of various types. They control the current flow to output devices such as LED lights.

Impact

By simplifying the way circuit elements are depicted, ladder diagrams make it possible for technicians all over the world to understand exactly what a circuit schematic is showing. Standard symbols on ladder diagrams make the technician’s work much easier.

Related Articles

How to Make a Simple Circuit
What Are Resistors Used for?
How to Convert Three-Phase Power to Amps
Difference Between Digital Inverter & Sine Wave Inverter
How to Reduce 12 Volt to 6 Volt
How to Calculate Transformer Load
Types of Electrical Loads
How to Calculate Motor Inrush Current
How to Use a 9-Volt Battery to Power LEDs
The Advantages & Disadvantages of Series and Parallel...
Types of Electrical Cable
DIY Very Simple 60-Hertz Oscillator With a Quartz Circuit
How to Convert 12 Volt to 6 Volt
How to Connect Step-Up 3-Phase Transformers
How to Calculate Voltages in Transistors
How to Build a Potato-Clock Science Project
Uses of Resistors
How to Hook Up a 480V, 208V, or 120V Transformer
How to Build DC to AC Power Inverters

Dont Go!

We Have More Great Sciencing Articles!