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IEC Electrical Schematics and Industrial Control Panels
Rating: 4.6 out of 5(265 ratings)
1,838 students

IEC Electrical Schematics and Industrial Control Panels

IEC Schematic Sets and Control Panels used in Modern Control Systems
Created byNorman Burton
Last updated 9/2025
English
English [Auto],Thai [Auto],

What you'll learn

  • Explain what makes up an IEC schematic set and where they are used.
  • Explain the purpose or job of an industrial control panel.
  • Describe the main parts of an industrial control panel.
  • Recognize IEC ingress protection ratings for control panel enclosures.
  • List basic IEC category ratings for contactors, contactor relays and disconnectors.
  • Explain the benefits of component multi standard certification.
  • Describe the main parts of an IEC industrial control schematic.
  • Recognize common IEC symbols and how these symbols are placed in a schematic diagram.
  • Understand how electrical devices and wiring connections are referenced in a multipage schematic set.
  • View component layout diagrams and gather important information such as; part numbers, I/O availability, signal type, specification and install requirements.
  • Describe the job of an emergency stop monitor / relay controller.
  • Explain how inverters or VFDs utilize safe torque off functions for emergency stop safety circuits.
  • Complete an IEC electrical schematic reading exercise.

Course content

5 sections • 41 lectures • 8h 6m total length

  • Overview & IEC Schematic Learning Resource1:53

    This short video introduces the course and provides information about the IEC schematic learning resource, which is referenced in this course.

  • Overview & IEC Schematic Learning Resource
  • Introduction to IEC Schematic Sets7:47

    This video lesson describes what makes up an IEC schematic set and where they are used.

    • An overview of the different parts of a schematic is provided. 

    • The documents included in a modern schematic set are outlined, including;  table of contents, legend of symbols, power and control schematic diagrams, panel and back panel layout, terminal block layout and the bill of materials (BOM).

    • The example "IEC Schematic Set Learning Resource" is presented in a short overview.

  • Introduction to IEC Schematic Sets
  • IEC Sample Schematic System Voltage13:10

    In this video lesson important IEC schematic information is covered, including:

    • The control panel rating label and the information listed on the label.

    • The typical IEC panel mains power connection.

    • Introduction to system earthing and how a  power system utilizes a TN-S, 5-wire configuration.

    • The control power supply wiring and physical location.





  • Types of Grounding (Earthing Systems) used in Electrical Installations0:34

    This article provides additional information related to the type of AC system ground (earthing) referenced in the previous video lesson.

  • IEC Sample Schematic System Voltage & Earthing Systems

Requirements

  • Recommended Udemy course: Introduction to Electrical Controls & Diagram Reading
  • Basic electrical knowledge, familiar with IEC electrical symbols used in schematic diagrams.

Description

This course gets you up to speed on understanding what makes up an industrial control panel.  An overview of IEC Basic panel design criteria and standards is provided.


  • IEC schematics and how to read them is covered. 

  • These electrical schematic diagrams are often used in small to large scale electrical control systems.  Stand alone machines, infrastructure equipment, integrated assembly lines, resorts, theme parks and building automation systems, use these types of electrical schematic diagrams.

  • An example IEC industrial control panel schematic set is provided in the course.


Important topics are covered in this course:


  • The main parts and basic construction of an IEC industrial control panel

  • Introduction to IEC industrial control panel standards

  • Overview of utilization categories for low voltage switch gear

  • Back panel component layouts, including din rail and wire routing ducts is explained

  • PLC graphic layout and back panel layout are detailed

  • Basic emergency stop control circuits are outlined

  • Safety control module integration is covered

  • Safe torque off or STO variable frequency drive safety function is covered

  • What makes up an industrial control schematic set

  • IEC 60617 graphical symbols use in diagrams

  • How IEC page coordinate systems work

  • Electrical device cross referencing systems

  • On and off page connectors, source and destination arrows and parent and child components

  • The mains power section, control wiring section and PLC control section are covered

  • Mains power sequential wire numbering based on functional description is covered

  • Control wire marking based on sequential numbering and page prefix numbering is covered

  • Motor controllers such as DOL starters, and VFD are shown in schematic sets



Who this course is for:

  • Beginner to intermediate electrical students, electricians and technicians working in or wishing to work in an industrial setting.
  • Electricians or technicians wanting to upgrade skills in industrial control schematic reading.

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