HARTING shapes a sustainable future

Connectivity for hydrogen technology

Configurable components & system solutions

Connectivity – meaning connection technology for transmitting data, signals and power – is playing a decisive role in creating an energy supply for the future. It is critically important in the production of hydrogen, because the efficient networking of all components and systems being used, ensured by connectivity, is necessary to implement an effective cycle in the production and distribution of hydrogen. Similarly, the connectivity infrastructure between hydrogen producers and consumers plays a key role in hydrogen technology.

The hydrogen market has the most demanding quality requirements in terms of safety, durability and reliability. This is exactly why HARTING is your optimal partner when it comes to connectivity for hydrogen technology. Our incentive here is to develop products and solutions efficiently and sustainably – for and with our customers.

What connectivity do we offer in the hydrogen production?

Continual monitoring and control is necessary during the production of hydrogen.
Control cabinet with HARTING components for data, signal and power supply.
  • HARTING components simplify the scaling of electrolysis facilities
  • We are developing connectivity options that are perfectly suited for electrolysis systems
  • Due to high temperature fluctuations, a continual monitoring of all process signals (such as pressure, temperature and flow measurement) is required
  • By taking advantage of the right connectivity, reliable voltage monitoring is possible even at high ambient temperatures

What connectivity do we use to support the transport and storage of hydrogen?

  • We offer system solutions for connectivity in transport with mobile storage units
  • Customized, custom-fit and space-saving connectivity for monitoring the temperature, pressure and valve positions
  • Also available as intrinsically safe Ex-i solutions for all signals
  • Valve control using pneumatic connections is possible
  • Customized and space-saving connectivity boxes are available in stainless (V2A and V4A) or powder-coated steel
Hydrogen can be transported in mobile containers via truck or rail.
Customized monitoring box for mobile hydrogen containers.

In which areas is our connectivity used?

HARTING supplies complete cable assemblies for fuel cells in railroad technology.
Customized monitoring box for use in railroad technology and maritime applications.

Fuel cells for railroad technology

  • Complete cable assemblies that are tested according to railroad standards
  • Reliable and durable HPR® hoods/housings for the most demanding environmental requirements
  • Assemblies are individually configurable according to your application requirements

Fuel cells for the marine sector

  • For these applications, HARTING offers solutions similar to the hydrogen transport with mobile storage units
  • A comprehensive product portfolio for transmitting signal, data and power – in proven HARTING quality, tested and documented
  • Also available as a complete solution

Risk zones divided into zones 0 – 2

Ignition protection types: extract from IEC 60079


Our connectivity & services for you

Han® standard components

Quick and easy handling, robustness, flexibility in use, a long life cycle and, ideally, a tool-free assembly.

Han® components for intrinsically safe circuits

Connectors specially designed to meet the requirements of IEC 60079-0 and IEC 60079-11, for use in zones 1 and 2. Optimally suited for transmitting signals for measurements, sensors and actuators.

HARTING customized complete solutions

Based on our complete HARTING connectivity portfolio, we design and manufacture customized system solutions that are adapted to your application requirements.

HARTING pushing partnership by co-engineering

We support you in all project phases with our co-engineering. Consistent communications and early involvement in the course of the project give you the opportunity to help shape every step.

  • Co-engineering saves you resources and time
  • Benefit from our many years of expert knowledge
  • Follow all project phases during regular live meetings

Certifications and approvals

Intrinsically safe electrical connections including customized terminal boxes and their optional pluggable cable assemblies meet the clearance and creepage distance requirements specified by the ATEX directives for ignition protection type Ex ia. This enables sensors (e.g. for pressure and temperature monitoring) to be reliably interrogated from all Ex zones.

  • Complete solutions that can be approved for ATEX certification.

Quality tests according to standards

Outstanding quality from the start – guaranteed by our in-house quality and technology center (HQT).



Connectivity for a wide variety of sectors

HARTING’s sustainable solutions for the hydrogen industry offer connectivity in a wide range of sectors. Our modular and individually configurable components and our customized system solutions are both relied on wherever monitoring and control is required in the production (electrolysis), storage, distribution and filling of hydrogen.

Your partner for customized system solutions

We understand that your connectivity requirements often call for individual solutions – for example to combine pluggable connections for different signals in a space-saving manner and to qualify these for various approvals. The optimal solutions to such requirements are not easy to find. We take over the services for the specification, selection and development of the connectivity solution, so that you can concentrate fully on your core process. We accompany you from the idea to the solution.

A competent development partner at your side

HARTING experts – with their many years of expertise in CAD development and engineering of complete solutions – are at your side throughout the entire project. Throughout, our accredited HARTING Technology Center (HTC) accompanies and supports the qualification, validation and, if necessary, approval. We have the proper experience right from the start. We've been active for many years in various industries that require reliable connectivity solutions with the most demanding environmental requirements – for example, for the offshore, rail technology and wind power sectors. Ensuring the highest quality for power engineering systems designed for a long service life.


Are you looking for a connectivity solution or our co-engineering support? Get in touch with your contact person!

Get in touch
Rudolf Nienaber
Project Engineer Machinery & Robotics

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Supply chain management thought out for the customer
Wherever possible and desired, our motto is “With the customer, for the customer”. Thus, when required, HCS can produce directly in the customer’s production hall.

Hydrogen and electricity from wind and sun are mutual partners in the energy transition
Whether everything is done with electric power or with hydrogen and fuel cells, it starts from the same source: electricity from renewable energy.


Hydrogen technology FAQ

What is hydrogen technology?

Hydrogen technology refers to use of hydrogen as an energy carrier. Hydrogen can be produced from water through electrolysis; it serves as a clean and efficient energy storage mechanism. Hydrogen technology encompasses various applications such as the hydrogen fuel cell, in which hydrogen and oxygen react to form water, generating electrical energy, and the use of hydrogen as a vehicular fuel. Hydrogen technology is considered a potential solution for decarbonizing the energy sector and reducing greenhouse gas emissions.

How does hydrogen technology work?

Hydrogen technology is based on the use of hydrogen as an energy carrier. Hydrogen can be extracted from water by electrolysis and then used in fuel cells or internal combustion engines to generate electricity. In a fuel cell, hydrogen reacts with atmospheric oxygen to generate electrical energy. Hydrogen technology has the potential to become a clean and sustainable energy source, since hydrogen produces only water as a waste product.

Is hydrogen technology sustainable?

The use of hydrogen as an energy carrier has several advantages. Hydrogen can be used in fuel cells to generate electrical energy, with water as the only emission. Hydrogen technology has the potential to contribute to the decarbonization of the energy sector, since hydrogen can be used as a renewable energy carrier.