Circular Connectors for Hydrogen Applications

by HARTING Technology Group

  • Circular connectors for hydrogen available in large number of variants
  • Various connection types and sizes are available: M8, M12, M23, 7/8“ series etc.
  • Various color coding available for mating faces: A, B, D, K, L, P, S, Y, X
  • Time saving by PushPull locking technology and Screw locking technology
  • Tool-free field assembly by HARAX® termination technology
  • Customization possible for different applications
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Circular connectors for hydrogen applications

  • As one of the largest manufacturers of industrial connection technology, HARTING has a comprehensive portfolio of connectors in all common sizes and codings.
  • The product range includes circular connectors, overmoulded cable assemblies as well as PCB connectors and panel feed throughs that can be assembled on-site.
  • Electrical connections through connectors are safely protected from external influences.
  • Even with vibrations and movements, which are common in industry and traffic engineering, the stable connection achieved with round connectors is impressive.
  • Various connection types are available, which have their benefits depending on the type and use of the connector.
  • Connectors that can be assembled on-site can be crimped without tools or with special crimping pliers.
  • The connectors have plastic or metal housings.
  • The transition from the housing to the cable is made via cable gland, crimp flange or overmoulding.

Connectors guide with all variants

  • Introduction
    • The Circular connectors are available in large number of variants for Device side, Cable side and also for Tools. For details see circular connector guide – click here.
    • HARTING has circular connectors with metric thread (M) as well as thread sizes in inches.
    • In particular they have M8, M12, M23, 7/8“ series.
    • The size and mating faces of circular connectors generally correspond to standardized thread sizes.
    • In addition to the desired or available attachment size, these also result from the physical performance data such as the number and cross-section of the wires and the current carrying capacity.
    • The mating faces of connectors are coded to prevent mismating.
    • The coding is incorporated into the inner shape of the insulation bodies.
  • Features
    • Standardized sizes and mating faces provide safety.
    • Coding prevents mismatching.
    • Time saving by PushPull locking technology and Screw locking technology.
    • Tool-free field assembly by HARAX termination technology.
    • Various connection types are available, which have their benefits depending on the type and use of the connector.
    • Connectors have plastic or metal housings.
  • Materials 
    • Contacts: Copper alloy
    • Inserts: Liquid crystal polymer (LCP)
    • Contacts: Gold plated surface
    • RoHS compliant with exemption
  • Specifications
    • Approvals:
      • IEC 61076-2-114 (M8)
      • IEC 61076-2-101, -111, -113, -109 (M12)
      • IEC 61076-2-010 (PushPull)
      • UL, CSA
    • Series: M8, M12, M23, 7/8“
    • Coding: A, B, D, K, L, P, S, Y, X
    • Protection degree, IP20, IP65, IP67

Application areas

  • Signal and data transmission of control units and field devices (sensors, valves, I/Os, etc.) of electrolyzer and fuel cell system.

Product video

Contact us

  • HARTING Technology Group is a global leader in supplying connectivity solutions for industrial technology. Interested? Please contact the vendor by filling in the contact vendor form or the request for quote form.
Compliant with

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Ingress Protection Rating

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Manufacturing Readiness (MRL)

Technology Readiness (TRL)

Technical Datasheet

Circular Connectors for Hydrogen Applications_technical datasheet

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      HARTING Technology Group

      High-performance connection technology forms the basis of industrial application and product technology. The HARTING range of products and solutions comprises connectors, device connection technology and network components. HARTING products connect machines and facilities via data, signal and power. These offerings enable solutions for the following markets: automation, energy, railway, machinery, robotics, mobility and smart infrastructure. HARTING employs around 6,200 people across its 44 sales companies and 14 production locations.

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