About zone 22 junction boxes (cabinets), About zone 22 junction boxes (cabinets) -4 – Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual
Page 32
Publication 1797-6.5.6 - June 2005
1-4 General CENELEC Certification Information
About Zone 22 Junction
Boxes (Cabinets)
Pepperl+Fuchs junction boxes (type IVK2-ISRPI-V8LC,
IVK2-ISRPI-V8HYW, or IVK2-ISPRI-V16LC) ensures the basic protection
for the intrinsically safe apparatus of the FLEX Ex system for use in Zone 22.
It corresponds with category 3D according to RL 94/9 EG and with the type
label marked with the following information:
Pepperl+Fuchs GmbH
68301 Mannheim
IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or IVK2-ISRPI-V16LC)
EX (Hexagon) II 3D IP54 T 70°C
CE
Serial (manufacturing) number
Model
The maximum dissipation is limited to 60W for the IVK2-ISRPI-V8LC and
IVK2-ISRPI-V8HYW junction boxes and 120W for the IVK2-ISRPI-V16LC
junction box.
The maximum ambient temperature for the junction boxes complies with the
internal dissipation. It must be guaranteed that the cabinet internal
temperature 70°C is not exceeded (requirement to the installed FLEX Ex
equipment). For example, the IVK2-ISRPI-V8LC junction box has a
maximum ambient temperature of 45°C with maximum mounting.
All cable entries, which are not equipped with a cable, must be provided with a
seal designated for it (IP54). Drillings in the housing, which are not used due
to less assembly, must be closed seal (IP54).
Close the junction box with the provided key after the assembly and mounting.
If the junction box must be opened for maintenance purposes during
operation, exercise care to prevent dust from penetrating inside of the
enclosure.
ATTENTION
When installing, commissioning, operating, and
maintaining devices with intrinsically safe circuits, the
certificate of conformity of the devices, as well as the
applicable national and local construction, installation, and
operating regulations must be heeded (in Germany DIN
EN 50020, DIN VDE 0165).
ATTENTION
Repairs to devices having intrinsically safe circuitry may
only be carried out by qualified personnel in accordance
with the valid regulations (Elex V).