What does the coding mean on M12 connectors?

New automation products and devices are introduced into the market every day, and each device needs the correct cable to operate. Even in standard wires sizes, there are a wide variety of connector varieties that correspond with varied applications.

When selecting a wire, it is necessary to choose the right size, length, number of connectors, pinout, and codes for your application. This article will review cable codes, which symbolize different functions and uses for a cable. Cables that are coded separately and differently will have different technical specifications and electrical features, corresponding to their predetermined uses. To differentiate between the different styles of wires, each connector has a different keyway. This is to avoid a cable from being employed in an incorrect application.

M12 connectors are round connectors with a 12-millimeters locking thread utilized for sensors, actuators, Fieldbus, and industrial Ethernet, principally in factory automation applications. Often with ratings ofIP65, IP68 and IP69K, they are perfect for washdown and corrosive conditions.

The M12 family connectors are usually found in several applications that include; factory automation, measurement and control, communications, food and beverage, transportation, agriculture, robotics, and alternative energy.

When it comes to particular purposes, users must choose the right pin count. For power applications and sensors, 3 and 4 pins are needed. Profinet and Ethernet make use of 4 and 8 pin counts. And Fieldbus, CANbus, and DeviceNet principally use 4 and 5 pin counts. Finally, specify 12 pins for signal specifications.

What does the coding mean on M12 connectors?

Several styles of coding exist in M12 connectors; they are used for different purposes. This coding prevents inappropriate mating on products. Also, shielding is available in most coded M12 connectors.

  • A-coded connectors are the most popular type of connector. These are utilized for sensors, actuators, motors, and most other standard devices. A-coded connectors can differ in its quantity of pins, anywhere between two pins and 12 pins.
  • B-coded connectors are mainly utilized in network cables for Fieldbus connections. Most particularly, this involves systems that operate with Profibus. B-coded connectors usually have between three and five pins.
  • C-coded connectors are much less popular than the other types of connectors. These connectors are principally used with AC sensors and actuators. They also have a double keyway for additional security, guaranteeing that this connector will not be accidentally utilized in the place of another cable. C-coded connectors have between three and six pins.
  • C-coded connectors are much less popular than the other types of connectors. These connectors are principally used with AC sensors and actuators. They also have a double keyway for additional security, guaranteeing that this connector will not be accidentally utilized in the place of another cable. C-coded connectors have between three and six pins.
  • D-coded connectors are usually used in network cables for ProfiNet and Ethernet systems. D-coded connectors transfer data up to 100 megabytes. These connectors typically have three to five pins.
  • X-coded connectors are a newer advancement of the cables. They are growing in popularity due to their capacity to transfer large amounts of data at high speeds. X-coded cables transfer data up to 1 Gigabyte, making them perfect for high-speed data transfer for industrial purposes. While the other coded cables usually vary in the number of connectors, X-coded cables will always have eight pins.

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Jessica Cardona
www.readytogocables.com