M12 Circular Connectors
M12 connectors are crucial in automation, robotics, and industrial control. They handle power, signal, and high-speed data in harsh environments. EI Sales connects OEM design teams to trusted manufacturers, enabling engineers to source the right solutions through technical insight, fast-turn service, and long-standing industry relationships.
M12 Connector Variants Available
Connectors come in a wide variety of configurations to support power, signal, and Ethernet applications. We work closely with engineering teams to specify the correct combination of coding, pin count, and mounting style for their environment and interface needs.
3, 4, 5, 8, 12-Pin Configurations
Available in multiple pin counts to match application voltage, current, or data transmission needs. From simple sensor hookups to multi-channel signal or power lines, we help match the right pin configuration to your system.
A-Code, B-Code, D-Code, X-Code, S-Code, T-Code
Each coding type is keyed to prevent mismating and is designed for specific functions, including DC power, AC power, Ethernet, and fieldbus. Our team helps clarify coding choices and ensures the right fit across existing and new platforms.
Shielded and Unshielded Options
For EMI-sensitive environments or when noise reduction is a concern, shielded M12 connectors protect signal integrity. Unshielded versions are available for standard or non-critical applications.
Male and Female Connectors
Available in plug and socket formats for both field-installable and moulded cable assemblies. We help you align mating interfaces to system design.
Straight, Right-Angle, and Panel Mount Styles
Mechanical orientation matters in tight enclosures. Choose from straight, 90-degree, and bulkhead mount styles to optimize routing and strain relief.
Overmolded Cable Assemblies
Factory-moulded M12 cable assemblies save installation time and increase durability in mobile or high-vibration applications. Options include PUR, PVC, and TPE jackets.
IP67/IP68 and Mated IP69K Ratings Available
Designed to seal out dust and water under pressure, M12 connectors are available in multiple IP-rated options for use in outdoor, washdown, or process environments.
3, 4, 5, 8, 12-Pin Configurations
Available in multiple pin counts to match application voltage, current, or data transmission needs. From simple sensor hookups to multi-channel signal or power lines, we help match the right pin configuration to your system.
A-Code, B-Code, D-Code, X-Code, S-Code, T-Code
Each coding type is keyed to prevent mismating and is designed for specific functions, including DC power, AC power, Ethernet, and fieldbus. Our team helps clarify coding choices and ensures the right fit across existing and new platforms.
Shielded and Unshielded Options
For EMI-sensitive environments or when noise reduction is a concern, shielded M12 connectors protect signal integrity. Unshielded versions are available for standard or non-critical applications.
Male and Female Connectors
Available in plug and socket formats for both field-installable and moulded cable assemblies. We help you align mating interfaces to system design.
Built for Power, Signal, and Data Reliability
These connectors support low-voltage signals, power distribution, and high-speed data in demanding environments. D- and X-coded versions enable Gigabit Ethernet. S and T-coded types handle higher current loads. Signal options keep control loops and sensors stable under stress.
EI Sales helps match each application to the right connector spec for long-term performance.
Common Use Cases for M12 Connectors
These connectors are widely used across industrial applications where space is limited, and connections must withstand vibration, moisture, and exposure.
Sensors, Encoders, and Fieldbus Devices
A-coded connectors support analog and digital I/O for proximity sensors, encoders, and distributed I/O nodes.
Power Distribution in Automation Systems
S- and T-coded connectors deliver compact power connections in distributed control panels, drives, and machine tools.
Robotics and Motion Control
Right-angle and overmolded styles prevent strain and vibration fatigue in articulated arms and moving platforms
Outdoor and Washdown Environments
IP-rated M12 connectors protect against moisture and debris in agriculture, food processing, and transportation systems.
Process Control and Machine Vision
Shielded connectors maintain signal clarity in high-EMI environments like imaging systems, conveyors, and inspection equipment.
Industrial Ethernet and Profinet
X- and D-coded M12 connectors support fast, stable Ethernet connections in PLCs, HMIs, and real-time control networks.
Get Help Selecting the Right M12 Connector
Specifying the right M12 connector involves more than pin count and coding. It takes an understanding of the environment, data, or power requirements, and mechanical constraints. Our team brings decades of experience supporting OEMs in medical, industrial, and vehicle system design.
Our team works directly with engineers to match application needs to trusted, standards-compliant connector solutions while keeping your project on schedule.
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