The danger of electrostatic charges must always be observed when loading, unloading or handling bulk solids or inflammable liquids in the petrochemical, chemical, pharmaceutical, as well as in the food and feed industry.

TIMM’s Grounding Control Device EKX-4 (2-pole) ensures that static electricity is safely discharged to the ground. Only if the connected object is detected and grounded properly, the filling release will be signaled by green LEDs and the control outputs will switch. If there are any breaks in the grounding connection, the filling will be interrupted immediately.


  • Opening of the housing during operation in gas hazardous areas is allowed
  • Automatic diagnosis system self-monitors all safety-related functions continuously
  • NAMUR-compatible Ex i control output
  • Safe loading and unloading of containers, drums, and similar vessels
  • For loading of bulk materials and flammable liquids
  • For use in gas and dust hazardous areas of zone 1 (equipment category II 2 G) and 21 (II 2 D)
  • Controlled derivation of the static electricity
  • Immediate interruption of the loading operation when unsafe grounding connection consists
  • According to all currently relevant EMC and ATEX directives
  • Immediately fully operational due to factory set release limits
  • Continuous self-monitoring of the redundant output signal
  • Additional control output
  • Multicolored LED-display to indicate the operating status and failure diagnosis
  • Extremely sturdy housing, especially resistant to chemicals and other environmental influences
Type of Protection:According to ATEX-standard 2014/34/EU:
Ex II 2 G – Ex eb q [ib] IIC T4 Gb
Ex II 2 D – Ex tb [ib] IIIC T80°C Db
EC Type Examination:TÜV 11 ATEX 080882
Power Supply:230 V AC ± 10 %, 50 Hz, ca. 10 VA
type of protection “increased safety“ Ex eb
Measuring Circuit:Max. Uo = 6,7 V; Io = 68 mA; Po = 114 mW
Max. 50 m (ex related specification, functional limitations must be observed)
Type of protection Ex ib / ibD
Only for connection of the grounding cable
The measuring circuit is grounded
Contact Release Output:Switching power max 250 VAC 3 A 100 VA
Type of protection “increased safety“ Ex eb
2 voltage free closer, internal monitored
Auxiliary Output:Switching power max. 250 VAC 3 A 100 VA
Type of protection “increased safety“ Ex eb
voltage free changeover contact, not monitored
Electronic Release Output:Max. Ui = 20 V Ii = 20 mA Pi = 400 mW
Inner capacitances Ci negligibly small
Inner inductances Li negligibly small
Type of protection “intrinsic safety“ Ex ib
1 NAMUR-compatible transistor output
Internal resistance: 1 kΩ or 11 kΩ
Modulation: 10 Hz, duty factor 1:1
Protection of Enclosure:IP65
Operation Temperature:- 30 °C up to + 60 °C
Dimensions (W x L x H):170 mm x 306 mm x 110 mm
Weight:approx. 4.5 kg

Please get in touch with our sales department for the operating manual and the 3D CAD/.step file.

Would you like to contact us regarding offers, orders or technical advice? You can find your personal contact person under Contact.

Answers to frequently asked questions can also be found under FAQ.


Grounding Control Device EKX-4 (2-pole)

Get an overview of the various configuration options of Grounding Control Device EKX-4 (2-pole) by clicking on configuration overview.

For more information about the ATEX certified accessories for Grounding Control Device EKX-4 (2-pole), click on the products below or visit our online shop.