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What is an M12 connector?

08/09/2022 Leon


The M12 connector is one of the most popular industrial connectors on the market. They comply with IEC specifications to ensure that all A-code connectors are interchangeable with each other.

 

The M12 connector is a circular connector with a 12-mm locking thread that is used primarily in factory automation applications for actuators, sensors, industrial ethernet, and Fieldbus. M12 connectors are designed for washdown and corrosive environments. They are available with 3, 4, 5, 8, and 12 pins.

 

Are all M12 connectors interchangeable?

 

The M12 connector is one of the most popular industrial connectors on the market. They comply with IEC specifications to ensure that all A-code connectors are interchangeable with each other.

 

Are all M12 connectors the same?

 

The M12 cable has a variety of codes, each for a specific purpose. In other words, the M12 code is designed to ensure that the cable is connected correctly. For example, the AC power cable cannot be connected to the Ethernet cable.

 

M12 Connector Coding

 

Different M12 codes are used for different purposes. Here are the five most common M12 cable codes and their uses. They are as follows:

 

  

A-coded connectors are the most common style of connector. These are used for sensors, actuators, motors, and most other standard devices. A-coded connectors can vary in its number of pins, anywhere between two pins and 12 pins.

B-coded connectors are mostly used in network cables for fieldbus connections. Most notably, this includes systems that operate with Profibus. B-coded connectors typically have between three and five pins.

C-coded connectors are less common than the others. These connectors are primarily used with AC sensors and actuators. They also have a dual keyway for added security, ensuring that this connector will not be accidentally used in the place of another cable. C-coded connectors have between three and six pins.

D-coded connectors are typically used in network cables for Ethernet and ProfiNet systems. D-coded connectors transfer data up to 100 Mb. These connectors typically provide three to five pins.

X-coded connectors are a more recent advancement of the cables. They are growing in popularity due to their ability to transfer large amounts of data at high speeds. X-coded cables transfer data up to 1 Gb. These are ideal for high-speed data transfer in industrial applications. While the other coded cables typically vary in number of connectors, X-coded cables will always have eight pins.

 

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