Automation technology - data transmission
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Number of contacts
This indicates the number of contacts the connector has.
Locking Type
The locking system describes how the pin and socket elements are joined.
  • M12 The connectors can be screwed together to secure the connection. M stands for metric thread and the number stands for the external diameter.
  • M16 The connectors can be screwed together to secure the connection. M stands for metric thread and the number stands for the external diameter.
Degree of protection
The degrees of protection according to IEC60529 apply to various articles and provide information on protection against the intrusion of water and solids such as dust.
  • IP20 Protects against contact with fingers and against foreign bodies of Ø > 12.5 mm. Does not protect against water.
  • IP67 Fully protects against touch and against the intrusion of dust. Protects against water intrusion in temporary immersion (depth: 1 m; duration: 30 minutes).
The choice of version allows the definition of certain technical specifications – for example the type of cable outlet or the size.
  • Connecting cable Connecting cable in various pin and socket versions.
Connector Type
Connectors are differentiated by installation type: those that are mounted in a device housing (panel mount) and those that are attached to cables.
  • Cable mounting Connectors with cable already moulded or for self-assembly.
  • Housing assembly Connectors that can be mounted to device housings. These can be fixed by means of a locking nut or be screwed in (requires a threaded hole).
Shielded Option
Electromagnetic compatibility (EMC) means that a connector is shielded or shieldable. This is required when it is necessary to protect the signals or data conducted by the connector, as well as to protect external devices, from disturbance due to electromagnetic effects.
Product segment
binder areas of application or type of connector.
  • Automation Technology Advancing digitisation and current manufacturing technologies make possible ever smaller and more high-performance elements in the areas of sensor technology and networking. Here, sensor technology means the detection of physical values and their conversion into electric values. These electric values are converted into a digital signal that can be transmitted by means of bus communication to other bus devices. This will make automated production more modular and flexible in the future, with a preference for standardised connectors like the models M8 and M12. The worldwide availability of the connectors and their adaptation to a broad range of applications have already led to numerous versions, e.g. codings.
To avoid mismating, the connector elements – the pin and socket – must be brought into form-fitting alignment with one another (coding) before being locked.
  • M12-A This coding has existed since M12 connectors began their rise to prevalence. Its standardised size in accordance with DIN EN 61076-2-101, with 4, 5, 8, 12 or 17 contacts, allows numerous possible applications, from power supply to data transmission.
  • M12-D This coding was developed as a 4-contact, shieldable connector and standardised in accordance with DIN EN 61076-2-101 as one of the first for fieldbus wiring – e.g. PROFINET. It is used for data transmission at rates of up to 100 Mbit/s. Data transmission is becoming ever more prevalent and thus increasingly important.
The termination type determines how cables, single wires or PCBs can be joined with the connector.
  • pluggable Adapters or distributors that are joined with a connector on each side. The version and locking system may vary for the different terminations.
  • screw clamp The wires in a cable are pressed in the contact element radially by means of a screw, establishing the electrical contact.
  • single wires Connectors with contacts attached to individual wires ex factory. These can then be connected individually.
  • solder The contact and the individual wires of a cable are connected using solder.
  • wire clamp The connection of the individual wires of a cable with the contacts is established by spring power, allowing quick assembly.

M12-D coded connectors - automation technology

M12 connectors with D-coding of the 825/876 series for high-performance applications such as PROFINET and Ethernet have screw/cutting terminal connection and reach Cat5. Cable connectors are also available with moulded cable, flange connectors have solder and dip solder connections. The connectors have excellent shielding and achieve IP67 protection. Shielded M12-D to RJ45 adapters are available straight and angled.

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