RockStar® Heavy-duty connectors

RockStar® connectors ensure safe and reliable transmission of power, signals, and data in industrial environments, both inside the control cabinet and outside in the field.

Industrial connectors from Weidmuller guarantee exceptional performance in any environment

In demanding surroundings outside the control cabinet, robust industrial connectors are required that are resistant to extreme industrial or climatic conditions as well as electromagnetic interference: In other words, genuine RockStar® heavy-duty connectors.

Currently, heavy-duty connectors are used wherever there is a need for a secure, simple and time-saving assembly of machinery and facilities. The die-cast aluminum connector housings provide excellent protection against dirt, moisture and mechanical stress. In addition, special modular connectors enable the combination of signals, power supply, and data connections in a single connector.

Weidmuller industrial connectors guarantee exceptional performance and reliability for the entire range of power, signal, and data transmission. Discover our RockStar® family of robust plug-in connectors, including modular plugs, fixed-pole inserts in various sizes, and heavy-duty connectors for the demanding requirements of traffic engineering.

German Innovation Award 2022

SNAP IN impressed the "German Design Council" right down the line, and the independent jury awarded Weidmuller the German Innovation Award 2022 for its innovative SNAP IN connection technology. The German Innovation Award honors products and solutions across all industries that distinguish themselves above all through user-centric design and added value compared to previous solutions. The German Innovation Award is the prize that makes new products visible.

Product range

Industrial connector range of fixed pole inserts and IP65 housings

  • Connectors with safe transmission of currents of up to 35 amps and voltages of up to 830 V
  • Reliable signal transmission at packing densities up to 216 poles
  • Screw, tension spring, crimp, axial, PUSH IN, and SNAP IN connection

RockStar® ModuPlug: Modular connectors with great performance in a reduced installation space

  • Optimum use of installation space and high flexibility thanks to the new module widths "Half 0.5" and "Single Plus 1.5"
  • Simple and safe assembly of the coded modular modules and the unique slide frame
  • Innovative data modules transmit up to 10 Gbit/s

RockStar® HighPower: The modular industrial connector

  • High performance in a minimal space due to modular design
  • Integrated shield connection and 360° contacting
  • Fine stranded copper conductors can be connected up to a size of 240 mm² with low-maintenance crimp connection technology

Cabinet wall solutions

  • Reduce installation space by 50% and increase the functionality within the same space in your application
  • Advantages of the modular terminal block combined with the flexibility and modularity of the modular connectors
  • Connect signals from the field directly to the device without detours through terminal blocks

Services for heavy-duty connectors

Free sample set (modular plug-in connector)

You would like to convince yourself of the simple handling of our modular connector RockStar® ModuPlug? No problem! Order your free sample set consisting of frames, modules, and the matching screwdriver.

Product configurator for industry connectors

Assemble our heavy-duty connectors individually according to your requirements and equip your connectors conveniently and easily online with matched inserts, contacts, and housings. Create your individual connector.

HDC Speedline Service

48 hour Quick Ship Program offered in North America

Speedline® Service guarantees the availability of our most popular Heavy Duty Connector (HDC) products in commonly used sizes and configurations, such as Weidmuller’s RockStar® Housings, Inserts and Cable Glands,so OEMs can make last-minute connections fast!

Perfect complements



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SNAP IN connection technology will take your wiring processes to a whole new level. With SNAP IN, installation and maintenance work are as quick as snapping your fingers.

The connection is as simple in principle as it is to use: The stripped conductor is inserted directly into open connection points and the snap connection snaps into place with a click.


Our comprehensive information materials for RockStar® heavy-duty connectors are available for download. You can download our flyers, one-pagers, brochures, or our product catalog to find exactly the plug-in connectors, modules, housings, inserts or kits, and other accessories for industry connectors that meet your requirements. Use these resources to discover the right connection technology for your individual needs.

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