What is an M8 Connector?

The M8 connector is an electrical or electronic connector commonly used in industrial and automation applications. It belongs to the circular connector family, which includes M5, M8, M12, M16, and M23 connectors, each of which is available in different sizes and features.The “M” in M8 stands for “metric,” indicating that the connector’s dimensions are in metric units.

Known for their compact size and rugged design, M8 connectors are suitable for use in environments where space is limited and they may be exposed to dust, moisture or other harsh conditions. These connectors typically consist of a male connector with pins and a female connector with sockets. They are used for establishing electrical connections for a variety of purposes, including power transmission, data communications, and sensor connections.

Overall, users favor M8 connectors for their durability and reliability in industrial environments, as they contribute to ensuring safe and stable electrical connections in challenging conditions.

M8 Connector and Cable

M8 Features and Options

Finding the best M8 connector for an application requires the right combination of variations, such as the number of pins, the housing, or the IP rating. M8 connectors are available in 3, 4, 5, 6, 8, or 12 pole. The number of pins determines the type of signal or power supply the connector can handle. M8 connectors with 3 pins can handle simple power connections, while M8 connectors with 4 or 5 pins can handle data communications or sensor interfaces. Most M8 sensor and power applications use 3 to 12 poles, while PROFINET and Ethernet use only 4 poles.

M8 connectors utilize high-quality copper alloys, exhibiting strong rust resistance and corrosion resistance. The connector’s insulating body is manufactured through high-performance molding, ensuring excellent, stable, and reliable insulation performance. It can still work stably in various flammable and explosive workplaces.

  • Gender: Male, Female
  • Termination: Screw, Solder, Wired, PCB or IDT (insulation displacement termination)
  • Housing Material: Plastic, Metal or Stainless Steel
  • Contact Plating Material: Au
  • Protection Degree: IP67, IP68 or IP69K
  • Cable Sheath: PUR or PVC
  • Connector Type: Panel Mount, Cable Molding or Field Mounting
  • Rated Voltage: 60V
  • Rated Current: 1A – 3A

Wide Range of Applications and Features of M8 Connectors

The application range of M8 connectors is extensive, spanning from small household appliances to large-scale petroleum instruments. In various applications, stability is their primary concern.

M8 connectors offer excellent waterproofing and oil resistance, making them suitable for a wide range of devices, from machinery and automobiles to household appliances and industrial equipment. They are also highly resistant to acids, alkalis, and chemical cleaning agents, withstanding welding sparks and reducing wiring needs for efficient equipment assembly. This versatility makes them ideal for challenging environments in industries like petroleum, chemical, steel, power, and automotive manufacturing.

For instance, M8 cable connectors facilitate the assembly and installation of sensors and industrial automation systems with various configurations. They are available in plastic and metal housings, both achieving IP67/IP68 protection ratings. M8 field assembly connectors come in two types: unshielded and stainless steel shielded, ensuring secure data and signal transmission in complex electromagnetic environments. Additionally, M8 self-locking threaded connectors and tail-locking self-locking threaded connectors are available, and M8 connectors for PCBs are also an option.

M8 pre-assembled waterproof connectors are suitable for outdoor applications and various industries, including electronics, machinery, communication, construction, steel production, mining, shipping, automotive, automation, temperature control, hydraulics, sensors, valves, instruments, and pressure devices. These connectors demonstrate remarkable reliability and adaptability across a wide range of applications.

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Like this article? Check out our other “How to choose M12 connectors“, “What is M12 Connector?” and “Difference between M8 and M12“. Follow us on LinkedIn and Facebook for more applicable, specialized connectivity content.

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