Reliable connections for every application - circular connectors from M8 to M23

In an increasingly digital environment, the reliable transmission of power, signals and data requires the rapid availability of standardised cabling solutions and the development of individual special cables. Irrespective of whether you require signal cables for sensor lines or data cables for Ethernet lines with different mating profiles – Weidmüller offers the right solution for every field of application.

Our extensive range of IP-protected circular connectors in sizes M8, M12, M16, M23 and 7/8" also ensures reliable wiring for your system. The different sizes are crucial for compatibility between connectors from different manufacturers and enable use in different applications. Particularly noteworthy are the M12 circular connectors, which guarantee reliable connections in demanding environments thanks to their robust design and IP67 protection rating. During development, we always concentrate on efficient and cost-effective assembly and installation concepts. In this way, we offer sophisticated products and set global standards in terms of functionality and quality. Our field-attachable circular connectors are available with a variety of connection techniques, including screw, tension spring, IDC, PUSH IN, crimp or solder connection technologies.

Comprehensive assortment

Comprehensive assortment

Our product portfolio includes all relevant circular connectors for industrial applications

100 % reliable connection

100 % reliable connection

Circular plugs: Designed, tested, and manufactured for the highest requirements

Certified for worldwide use

Certified for worldwide use

The circular connectors meet the high requirements of worldwide standardisation

Product range of circular connectors

Our product range of circular connectors offers the right solution for every requirement - whether for signal, power or data transmission. Our M12 connectors in particular, which are available in five different connection technologies, fulfil the highest requirements in terms of flexibility and robustness. They are ideal for demanding applications and offer reliable connections in harsh environments thanks to their IP67 protection rating. To cover individual cable lengths and specific installation requirements, our portfolio also includes pluggable solutions for free assembly for M8, M12, M16 and 7/8" connections.

IP68 circular connector – Screwable and click-in M20 plugs Product innovation

Connect cables and applications safely and quickly

Our IP68 circular connectors enable secure connections for LEDs and control cabinet connections in external applications. The connectors ensure a tight connection between two cables or between the cable and the application. The great advantage of our new circular connectors: connections can be made particularly quickly and, especially, securely. The plugs are easy to use, have a haptic response and can be used universally in many application environments.

IP68 circular connector – Screwable and click-in M20 plugs
Your special benefits
  • The simple connection technology enables time-saving connection
  • Our IP68 connectors can also be used in demanding environments
  • Cable and built-in connectors can be used for customer-specific applications

M8 and M12 connectors

M8 plug, M12 plug
  • Field attachable connectors with tension clamp, screw termination, crimp and IDC technology
  • Available in shielded and nonshielded, straight and angled versions
  • Available Codings: -A,-B,-D,-X

M12 Power connectors

M12 Power connectors
  • High power transmission without any problems
  • Available Codings: -K,-L,-S,-T
  • Power-coded M12 connectors designed for the transmission of up to 630V AC or 60 V DC and 16 A

M23 connectors

M23 circular connector
  • Easy handling and a high security
  • High mating cycles, high current carrying capacity and a high contact density
  • Connector with compact design

7/8“ plug-in connectors

7/8
  • Low number of pins and sturdy construction
  • Connectors available with different numbers of poles
  • Suitable wall bushings and cord sets available

M8 and M12 PCB connectors

M8 PCB connectors, M12 PCB connectors
  • All PCB connectors are suitable for reflow soldering
  • Available in different variants for different soldering methods
  • Optimise proven standards while making it easy and convenient to configure IP6x devices

M20 connectors

M20 round plug
  • Time-saving connection thanks to simple connection technology
  • 2-, 3- and 5-pole versions, IP68 protection class
  • Application-specific application options for cable and flush-mounted connectors

Assembly tools for circular connectors

Screwty® for M8 plugs, M12 plugs and M23 plugs

Assembly tool for M8 plugs, M12 plugs and M23 plugs
  • Universal tool for tightening on all common sensor and actuator cables
  • Simply turn the tool to tighten or release the plug in connector
  • An adjustable torque fitting is available, for extra reliability

Professional tools for the highest demands in use

Professional tools for circular connectors
  • A product range designed to work together, for perfect results
  • Tools for cutting, stripping, crimping, testing and screwing
  • Consistent processing quality at all times

Services in the field of circular connectors

Free round plug sample product

Free round plug sample product

Order design-in samples of your circular plugs quickly and easily: Use the free 72-hour sample service! We deliver your sample products of circular connectors to the desired location within 72 hours.

Product configurator for circular connectors and cables

Product configurator for circular connectors and cables

The configurator enables you to create SAI cord sets individually according to your requirements and specifications. You can configure cord sets that are identical at both ends, have two different connectors, or with one end left open.

Handling videos for easy assembly of our M12 connectors and other circular connectors

Handling videos for easy assembly of our M12 connectors and other circular connectors

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Instructions for handling an M12 connector

You can find many useful handling videos on the use of our circular connectors and exciting company insights on our YouTube channel. Have a look and subscribe to our channel today!

Perfect additions for round plugs

Single Pair Ethernet

Industrial plants are becoming increasingly digitalized, which means that conventional Ethernet cabling for sensors and control units is no longer sufficient. In developing new industry standards, Weidmüller relies on the innovative Single Pair Ethernet technology. Single Pair Ethernet enables the end-to-end connection of a large number of devices in the Industrial IoT, from the sensor to the cloud.

Downloads on the topic of circular connectors