International Processing Trade Fair for Powder, Bulk Solids, Fluids and Liquids

23 - 25 September 2025 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2023
Zoom Image LOGO_Grounding Control Device EKX-4

Grounding Control Device EKX-4

LOGO_Grounding Control Device EKX-4

Grounding Control Device EKX-4

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During loading and unloading of tank trucks, silo trucks and railway wagons with flammable liquids or bulk solids, an explosive gas and dust atmosphere may arise – a single spark can be sufficient to initiate an explosion. To prevent this, the occurring electrostatic charges must be discharged safely


Before each loading or unloading, the Grounding Control Device EKX-4 gets connected to the transport vehicle using the grounding cable and clamp. EKX-4 ensures static electricity is discharged safely to Earth and continuously monitors the grounding connection. Only if the connected object is detected and grounded properly, the electronic control outputs will switch to permissive and filling release will be signaled by green, widely visible LEDs. If there is an interruption of the grounding connection, this will be shown by red LEDs and the filling process will be stopped immediately


EKX-4 provides monitored electrostatic grounding at loading/unloading stations and gets installed directlyin gas and dust hazardous areas of zone 1, 2 and 21, 22. Its control outputs allow connection to the loading control system. Typical applications are top loading of fuel tank trucks, gas carrying trucks (compressed, cryogenic, high pressure tubes), tank vehicles for petrochemical/chemical products or when handling flammable bulk materials, such as coal dust, starch, sugar or flour.


■ Protection against electrostatic discharges in hazardous areas

■ Designed to purpose intelligent explosion protection (IEPC)

■ Prevents manipulation by object detection (measuring impedance)

■ Simple application configuration (e.g. “tank truck“, “rail way wagon“)

■ Automatic diagnosis and continuously self-monitoring of device


■ Opening the housing for quick change of cables or configuration is permissible under power

■ Possibility to connect longer grounding cables due to cable compensation

For further information about our 1-pole grounding device, please visit:

POWTECH offers concrete solutions for packaging-intensive industries. Industry guide


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