M12 circular connector product features

M12 Circular Connector

M12 circular connector is designed for washdown and corrosive environments, primarily used in factory automation applications for actuators, sensors, industrial ethernet, and Fieldbus.

M12 series provides with 3, 4, 5, 8,12,17 contacts, different pin match specific applications. E.g, sensor and power applications require 3 or 4 pins; Profinet and ethernet require 4 or 8 pin counts; Fieldbus, CAN bus and DeviceNet typically use 4 or 5 pin counts; and signal requirements usually employ 12 pins.


Product Features

  • Pin configurations: 3, 4, 5, 6, 8,12 and 17 positions and Y Connectors
  • A, B, C, D, X, S, T coding available
  • X-coded support higher bandwidth needs of up to 10 Gb/s
  • Non-removable Contacts
  • Meets IP67 waterproof requirements
  • Temperature Range: -40°C ~ + 90°C
  • Alternative mount arrangements for solder cup or PCB
  • Panel Mount and distribution version available
  • Available as a loose piece or as a pre-made M12 cables
M12 circular connector

M12 circular connector


1.What is the difference between M12 connector coding?

  • A-coded mostly used in sensors, actuators, motors, and most other standard devices. it usually between 2 and 12 pins.
  • B-coded mostly used in network cables for Fieldbus connections, includes systems that operate with Profibus. it typically have between 3 and 5 pins.
  • C-coded primarily used with AC sensors and actuators, and also have a dual keyway for added security. it have between 3 and 6 pins.
  • D-coded typically used in network cables for Ethernet and ProfiNet systems. it transfer data up to 100 Mb and typically provides 3 to 5 pins.
  • S-coded are for ac power application.
  • T-coded are for dc power application.
  • X-coded can transfer large amounts of data up to 10Gb at high speeds, it will always have 8 pins.



  1. What is the application prospect of M12 connector

M12 connectors will be more suitable for the Industrial Internet of Things (IIoT).

The IIoT is a real-time data connection, driven by processing and transmitting data at faster speeds, on progressively smarter and smaller machines. The value of the IIoT goes beyond data collection and transmission, it benefits including but not limited to the ability to identify disruptions, discovering unused capacity, reducing maintenance costs and downtime, improving safety,  and maximizing overall equipment effectiveness.

M12 connectors’ advantages in the speed, reliability, and ruggedness, etc perfect match the smart factories’ demand.


  1. How to purchase M12 connectors from Renhotec?
  • Please send us the specification or drawing for the items with quantity and performance requirements.
  • We will offer you a detailed quote with lead time, package, payment term for confirm, normally in 3 days.
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