
Secure connections in hydrogen applications
Hydrogen places the highest demands on electrical installations. Our certified Ex connectors and Ex cable glands ensure safe cable and wire connections in areas with explosive atmospheres and support the reliable operation of electrolysers, hydrogen refueling stations, compressors, and process plants. To learn more about our expertise…
…go to reference project: ControlEx connectors for pressure monitoring in H2 trailers
Visit us at the Hydrogen Technology Expo in Hamburg
in our boot B7 / 7HB1 we will show you solutions for hazarodus areas from a single source. Among them are:
Ex-cable glands
Safe and durable cable entry solutions for enclosures and housings:
- Certifiied for Ex-areas
- Protection against ingress of dust and humidity IP66/IP68/IP69
- Reliable strain relief
- Variety of materials e.g. plastic, brass, stainless steel
- Broad range of options and accessories
Ex-Connectors
Fast electrical connections for demanding environments:
- Plug-and-play installation
- Reduced maintenance time
- High system availability
- Robust industrial design
- Certified solutions for hazardous areas
Technical Expertise for Demanding Ex-Applications
For several decades, Jacob GmbH, together with partners from the Hubbell Harsh & Hazardous Group, Raytec, and Cortem, has been offering innovative, explosion-proof solutions from a single source. The explosion-proof team at Jacob provides support in project planning, advises on component selection, and offers user training. The Ex product portfolio includes cable glands, terminal boxes, pressure-resistant enclosures, connectors, control units, and LED lighting—including lighting design.
Would you like to learn more about us? Click here to watch the video clip “The Jacob EXperts”
Why Hydrogen Poses Special Challenges
Hydrogen is considered a key energy carrier in the energy transition. However, due to its physical properties, it places high demands on the safety of electrical systems:
- Very low ignition energy
- High diffusivity
- Formation of explosive atmospheres
- Use in hazardous areas in accordance with ATEX and IECEx
- High requirements for leak tightness and material resistance
For operators and plant manufacturers, this means that every electrical connection must be reliably protected against gas ingress and approved for use in potentially explosive atmospheres.

Typical Applications
Anywhere hydrogen is handled safely.
Electrolyzers: Safe connection technology for the production of green hydrogen.
Hydrogen refueling stations: Reliable electrical connections for compressors, storage, and refueling systems.
H₂ storage facilities: Protection of critical components in potentially explosive atmospheres.
Process industry: Applications in chemical, energy, and refining plants.
Research and pilot plants: Flexible and safe solutions for development and testing environments.

