Panel Building 101: Understanding the Basics and Common Components

Have you ever wondered what goes into the making of the electrical panels you see on construction sites or in the basement of a building?

Panel building might sound complex, but it’s a fascinating world once you get to know the basics. This article will guide you through the essentials of panel building and introduce you to the common components involved.

Whether you’re a budding electrician or simply curious, understanding panel building can offer valuable insights into how our modern world is powered.

Electrical Enclosure

The enclosure of an electrical panel is like a protective box. It keeps all the components inside safe from dust, water, and any accidental touches. It can be made of metal, like steel, or plastic, depending on where the panel will be used.

Power Supply

The power source in an electrical panel gives the panel the power it needs to work. This part changes the received electricity into the right form for the electrical panel components. It makes sure that the electrical panel’s different parts get the right amount of power to work right.

Circuit Protection Devices

Circuit protection devices are crucial in any electrical panel. They prevent too much electricity from flowing through, which can cause damage. This includes fuses and circuit breakers that quickly turn off the power when necessary.

Control Devices

Control devices in an electrical panel are used to start or stop the electric flow. They include buttons, switches, and levers that can turn machines or lights on and off. These devices help control the operations of different electrical components safely and efficiently.

Terminal Blocks and Wiring

The Terminal blocks and wiring are essential for organizing the connections in an electrical panel. Terminal blocks act as a secure way to connect different wires together while keeping them tidy and easy to manage. Wires carry the electrical current from the power supply to the various components within the panel, ensuring everything works as it should.

Contactors and Relays

Parts of electrical panels that control the flow of energy are called contactors and relays. Through its connections, a contactor can move a lot of electricity around.

One way relays are used to control another circuit is by opening and closing contacts in a different circuit. This lets a low power signal control a high power or high voltage circuit.


Transformers in electrical panels are used to change the voltage of electricity that comes in and goes out. They can increase the voltage for transmission over long distances or decrease it for safe use in homes and businesses. This helps in providing the right amount of power needed by different devices and systems.

PLC (Programmable Logic Controller)

PLCs are specialized industrial computers used for controlling manufacturing processes or machinery. They are programmed to perform specific tasks based on input from sensors and switches. If you require advanced automation capabilities and seamless integration with other control systems, consider iAutomation solutions, which can enhance efficiency and flexibility in your panel design.

Power Up Your Projects With Expert Panel Building

Panel building might seem like a big puzzle at first, but every piece has its special place and purpose. From the sturdy enclosure that keeps everything safe, to the clever PLCs that manage it all, every component is key to making things run smoothly.

Remember, whether it’s lighting up a stadium or just keeping your home cozy and bright, the art of panel building makes it all possible. 

Did you find the information in this article helpful? If so, be sure to check out our blog for more valuable resources.

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