Ex barrier for intrinsic safe detectors Series IQ8Quad Ex (i)


Approval: ATEX

Ex barrier for the operation of intrinsically safe IQ8Quad Ex (i) series detectors directly on the esserbus/esserbus PLus with individual addressing in connection with the detector base Part No. 805590.
Additional Information:
A safety barrier does not replace an overvoltage protection according to IEC 801, DIN VDE 0185 and 0855.
You can find more detailed information on the installation and the operation for IQ8Quad Ex (i) Series detectors in the documentation Part No. 798920.

System requirements
  • Number of detectors up to max. 10 fire detectors per Ex barrier
  • Max. 4 Ex barriers per loop.
  • At least one esserbus device with a isolator must be installed between two Ex barriers.
  • Total loop length up to max. 3,500 m.
  • For each Ex barrier the total loop length must be reduced about 200 meters.
  • Cable length (spur) within the Ex area max. 400 m per Ex barrier.
  • Load factor 3 per Ex barrier (Use load factor calculation tool).
MountingTop-hat rail
Weight gapprox. 100 g
Air humidity< 95 % (non-condensing)
Type of protectionIP 20
SpecificationEN 54-18:2005
Ambient temperature-20 °C ... 60 °C
VdS-NrG 210047
DimensionsW: 20 mm H: 107 mm D: 115 mm