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Demystifying IEC Connectors: Everything You Need To Know

Do you know you can optimize the performance of your electrical installations? This can be done by familiarizing yourself with the different types, specifications, and usage guidelines of IEC connectors. Today we will discuss “Demystifying IEC Connectors: Everything you need to know.

Knowing these connectors inside and out will help you manage power connections more skillfully.

Electrical connection development and standardization are greatly aided by the International Electrotechnical Commission (IEC). The IEC was established in 1906.

In order to fulfill the expanding demand for global standards in electrical engineering, the International Electrotechnical Commission was established.

This article aims to introduce beginners to IEC connectors.

It elaborates on the safety and importance of IEC connectors universally. IEC connectors have standardized electrical connections, thus reducing accidents and making workplaces and homes safer.

What Are IEC Connectors?

IEC connectors are standardized electrical connectors. These connectors adhere to the IEC-60320 specification. Power couplers must meet certain mechanical, electrical, and safety regulations.

The male and female connections used in a variety of electric equipment must meet the IEC-60320 standard. These connectors can be firmly linked together for electrical connections because of their distinctive physical qualities.

The unusual “C” series naming on IEC connections makes them easy to identify. Each connector has different traits and applications depending on its power requirements.


Here are the roles of these connectors:

  • IEC connectors are primarily used to transfer electrical power from a power source to electronic devices. They act as a connector between the device and the power cable.
  • This connection follows the IEC-60320 specification. Through standardization, gadgets, and cables from many manufacturers are interchangeable and compatible.
  • IEC connections are made in accordance with safety regulations to guard against electrical risks. The risk of electrical accidents decreases with compliance with safety regulations and improving user safety.
  • IEC connections are intended to be simple to install and replace. They have an easy plug-and-play design that makes connections quick and effortless.

What Is IEC Main Voltage?

Depending on the region, the main voltage might change. The IEC standard voltage levels for a given nation’s or region’s electricity grid may vary.

What Is IEC Testing?

IEC testing is a process that involves evaluating and certifying devices. The products are put through testing to ensure they adhere to the IEC International Standards.

The evaluation is acknowledged and accepted all around the world. A product may enter numerous markets after being tested to this standard.Common IEC Connector Types and IEC Connector Chart

A variety of standardized connections are covered under the IEC-60320 standard. Each has a different range of current capabilities, temperature ratings, and conductor counts.

The IEC-60320 standard specifies thirteen sets of male and female connectors. These are:

Iec Connector Types

The words “IEC connectors” and “IEC power connectors” are sometimes used interchangeably.

“IEC power connectors” refers particularly to the subset of IEC connectors that are made and utilized for power connections. Here are some common types of IEC power connectors:

IEC C13 connector and IEC C14 connector

IEC C19 connector and C20 connector

IEC C5 connector and IEC C6 connector

IEC C7 connector and IEC C8 connector

IEC C15 connector and IEC C16 connector

IEC C21 connector and IEC C22 connector


IEC Connector C13 And C14 IEC Connector/ IEC C13 Connector and IEC C14 Connector

Power cables often have a C13 connection. Devices and power supplies frequently employ the C14 connection. It is frequently used to connect computer displays, printers, audio equipment, and other devices.

IEC C19 Connector And C20 Connector

C19 and C20 are used in equipment such as servers, data centers, and high-power appliances.

IEC C5 Connector and IEC C6 Connector

For laptop power supply and some audio and video equipment, C5 and C6 connections are frequently utilized. In addition, they are referred to as Mickey Mouse or Cloverleaf Connectors.

IEC C7 Connector and IEC C8 Connector

A lot of electronics, including TVs, DVD players, and gaming consoles, use C7 and C8. They are sometimes referred to as “Shotgun” or “Figure-8” connectors.

IEC C15 Connector and IEC C16 Connector

C15 and C16 are created for applications requiring higher temperatures. These connectors are used in equipment such as electric kettles and high-temperature appliances.

IEC C21 Connector and IEC C22 Connector

Specialized high-temperature equipment uses C21 and IEC C22, which have a 155°C temperature rating.

How To Identify And Differentiate IEC Connectors

You need to first understand the physical characteristics and features of these connectors.

Proper identification will ensure your safety and compatibility when connecting devices.

Here are some physical characteristics you need to look for to identify these connectors:

  • Each connector type has a distinct shape. Identifying the shape of the connector can help determine its specific type.
  • You can determine the kind of connection by counting the conductors within. The quantity of conductors or pins varies across different connections.
  • There may be holes or notches in certain places on some IEC connections. Any notch or cutout in the connection should be observed.
  • Keep an eye out for any letters or numbers etched on the connection that might identify the precise IEC type. IEC connections frequently contain markings or labeling on their bodies.
  • You need to pay attention to the overall size, shape, and dimensions of the connector. Then compare it with known IEC connector types.
  • There are polarization characteristics on some IEC connectors. One certain position is required to implant them. The connection type can be simplified by identifying any polarization traits.
  • To determine the connector’s precise kind, look for any temperature-related specs or marks.

Safety Considerations With IEC Connectors

Safety is paramount when working with IEC connectors to protect against electrical hazards. You can prevent loss of equipment, damages to property and safeguard office personnel by adhering to safety regulations.

Electrical currents can go using IEC connections. Electrical shocks, burns, or even deadly injuries can occur while working with live circuits or incorrectly placed connections.

You can avoid all these workplace accidents by following these tips:

  • You need to make sure that the IEC connectors are correctly wired according to the appropriate standards and guidelines.
  • To stop electrical leakage and shield against electric shock, the insulation must be sound, without any cracks or damage.
  • Use connectors that are appropriate for the equipment or device’s intended current requirements.
  • Check the compatibility of the voltage. The IEC connections’ voltage rating needs to match the voltage supply.
  • For increased safety, certain IEC connections contain grounding pins. Pay close attention to the device or equipment’s grounding specifications. Make sure the grounding connections are made correctly.
  • The IEC connections and related cables should be inspected periodically. For continued electrical safety, replace any connections that exhibit symptoms of degradation.
  • Utilize IEC connections that adhere to the necessary safety standards and laws.

Here are some key practices to consider for maintaining IEC connections safely:

  • Make sure the power source is unplugged and switched off before handling or installing IEC connections.
  • IEC connections should be handled with a strong grip, but you should avoid twisting or using too much force.
  • To prevent excessive stress or tension on the wires, utilize the proper cable management practices.
  • Keep IEC connectors clean and free from dust, dirt, or debris.
  • Follow the recommended current ratings and refrain from overloading the connections.

Male IEC Connector and Female IEC ConnectorIEC Connector Male And IEC Connector Female

Connectors, both male and female, are essential for creating electrical connections between cables and equipment. Below are the differences you need to know about both connectors:

IEC Male Connectors:

  • A male connector has a female counterpart that it is intended to fit into. Male connectors are frequently referred to as plugs.
  • Male connectors have projecting pins, prongs, or other parts that slide into slots or receptacles in female connectors.
  • The number of female connections multiplied by one is the matching male connector number. Examples of male connectors include the C8, C14, or C20 connectors in the IEC-60320 standard.

IEC Female Connectors:

  • A secure connection is made by a female connector that is made to take the male connector. Common names for the female connection include sockets and receptacles.
  • A female connection features holes, slots, or receptacles into which the male connector’s pins or prongs can be put.
  • The female connections are indicated by odd numbers. Examples of female connectors include the C7, C13, or C19 connectors in the IEC-60320 standard.

How To Wire IEC Connector

Connecting a cable’s electrical conductors to the proper connector terminals is the process of wiring an IEC connector. Below is a list of things you need to do to wire an IEC connector:

  • Assemble the required equipment and supplies.
  • Identifying the terminals.
  • Preparing the cable for installation.
  • Installing conductors to their corresponding terminals.
  • Link the conductors.
  • Test the connection and inspect the wiring.

Now, let’s get into the details of each of these steps:

Assemble The Required Equipment And Supplies

An IEC connection and a cable with the proper conductors are required. Wire strippers and potentially a crimping tool or soldering iron are other tools you’ll need.

Identifying The Terminals

Male or female terminals can be found on IEC connections. To ensure proper wiring, pay attention to the terminal labeling or numbering.

Preparing The Cable For Installation

Expose the separate conductors by stripping the cable of its outer insulation. The striped portion’s length ought to be appropriate for the connection you’re utilizing. No tension should be applied to the wires.

Separate the conductors if your cable has multiple by using wire strippers. The stripped portion’s length should roughly match the terminal’s length.

Installing Conductors To Their Corresponding Terminals

Insert each stripped conductor into the corresponding terminals. Make that the terminals and conductors are properly connected. There shouldn’t be any slack wire outside the connection.

The type of IEC connection you choose may affect the precise arrangement. Make sure the positioning is right by referencing the terminal labeling or numbers.

Link The Conductors

Depending on the IEC connector you’re using, you must next secure the conductor. You can accomplish this by tightening screws or clamps, using a crimping tool, or using a soldering iron.

Test The Connection And Inspect The Wiring

Finally, check the wiring to ensure that there are no loose strands, exposed wires, or short circuits.

It is advised to use the proper electrical testing tools to conduct a continuity or insulation resistance test.


What Is A Locking IEC Connector?

A locking IEC connector refers to an IEC connector that includes a built-in locking mechanism.

What Does IEC Stand For?

IEC stands for the International Electrotechnical Commission. They are an international organization that sets standards for electrical and electronic technologies.

What Are The Advantages Of Using IEC Connectors?

IEC connections have a number of benefits. Examples include interchangeability, simplicity of use, and interoperability with a variety of devices.

Can I Replace A Damaged IEC Connector Myself?

If the manufacturer’s instructions and safety precautions are carefully followed, a damaged IEC connector may occasionally be replaceable.

Can I Use IEC Connectors For Outdoor Applications?

IEC connections were made particularly for usage inside. It is advised to utilize connections made particularly for outside conditions for outdoor applications.


So this is all you need to know about Demystifying IEC Connectors: Everything you need to know. IEC connectors may seem daunting at first. You should not be intimidated by all the information and take it one step at a time.

Beginners can easily grasp how easy it is once they will start working and using IEC connectors.

The IEC broadened its standards to suit particular connection needs as technology developed and a variety of businesses arose.


Hello, my name is Eva Xia, and I am currently the Marketing Manager at Yueqing Weup Technology Co., Ltd, located in Wenzhou, Zhejiang, China. With over a decade of experience in the accounting field, I have developed extensive knowledge and skills that enable me to excel in my role. Additionally, I have spent two years working as an English teacher, which enhanced my communication abilities and instilled discipline within me.

Having gained more than three years of valuable experience in overseas sales, I have had the opportunity to expand my horizons and develop a deeper understanding of the commercial landscape. This exposure has nurtured my business understanding and allowed me to navigate diverse markets confidently.

However, despite my accomplishments thus far, I remain dedicated to continuous growth and learning. My current area of focus revolves around electronic switches. It is a fascinating and dynamic field that constantly evolves with technological advancements. By delving deeper into this realm, I aim to enhance my professional knowledge and stay ahead of industry trends.

In summary, as a Marketing Manager at Yueqing Weup Technology Co., Ltd., I bring forth a wealth of experience in accounting coupled with the valuable skills honed during my time as an English teacher. Furthermore, my extensive overseas sales expertise has sharpened my business acumen. With a relentless thirst for knowledge and a specific interest in electronic switches, I strive to enhance my professional capabilities further while contributing positively to our organization’s success.

Get in Touch for More Insights!

If you’ve found the information helpful and want to learn more, I encourage you to reach out. Whether your questions concern our latest industry trends, electronic switches, or other market insights, I’m here to help!

Don’t hesitate to drop me an email at the below table.

I am looking forward to hearing from you soon!

Eva Xia,
Marketing Manager at Yueqing Weup Technology Co., Ltd


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