ESP Junction & Terminal boxes

Ex e GRP junction box for Zone 1 and 21
  • Chemical-resistant
  • Temperature-resistant
  • Flame-retardant
  • Corrosion-proof


Polyester distribution boxes have been of great advantage in many industrial plants. They offer safe protection even when they are exposed to extreme environmental conditions, aggressive chemical media or high mechanical stress. The narrow sides within the enclosure hold threaded bushings for the fixing of terminal rails or mounting panels. The enclosure is mounted by means of insulated screws outside of the lid sealing gasket.
These black high-quality explosion-proofed enclosures are used in hazardous areas by inflammable gas (Zone 1 and 2) and dust (Zone 21 and 22). The fundamental prerequisites of the “protection through enclosure“ protection class are fulfilled with the heating up calculation as per the accompanying sheet and a separate IP protection test.

Technical Data

Protection class IP66 (IEC/ EN 60529)
Dimensions see data sheet
Material glass-fiber reinforced polyester, EN 60079-0
halogen-free, RAL 9005 (black) or RAL 7000/7001 (grey)
Weight see datasheet
Voltage max. 1000 V
Current see operating instructions
Surface resistance black enclosure (RAL 9005) 10^9 Ω
grey enclosure (RAL7000/7001) > 10^12 Ω

Manuals/Operating Instructions/Guides

Operating instruction

Data Sheets

  • Data Sheet
  • Data sheet Junction & Terminal boxes – general