Multifunction Terminal MFT-***.****(.L)
Installation
20
20
-0
3
11
3
Installation
Requirements for Equipment Protection Level Gb
Danger!
Explosion hazard from pollution
Pollution generates creepage paths, such that the insulation distances are no longer sufficient.
As a result, the device loses its type of protection and can ignite a
surrounding explosive atmosphere.
Ensure that you install the device only in environments with a pollution degree 2 or better
in accordance with IEC/EN 60664–1.
Danger!
Explosion hazard from wrong mounting
The device safety can be impaired by external environmental influences and by mechanical
stress. That can lead to sparking that can ignite a surrounding potentially
explosive atmosphere.
Mount the device in a surrounding enclosure that complies with the requirements
for surrounding enclosures according to IEC/EN 60079–0 and that is rated with the degree
of protection IP54 according to IEC/EN 60529. The surrounding enclosure have to comply
the respective requirements for explosion-hazardous areas.
Danger!
Explosion hazard from missing cover
If non-intrinsically safe circuits come into contact with electrically conductive objects, a spark
can occur that can ignite an explosive mixture.
•
Protect the non-intrinsically safe circuits with a cover that is rated with the degree
of protection IP30 according to IEC/EN 60529.
•
Use the supplied parts to ensure the required degree of protection.
•
Place warning marking "Warning
–
Non-intrinsically safe circuits protected by internal
cover with a degree of protection IP30!" visibly next to base module.
Danger!
Explosion hazard from environmental influences that impair the type of protection
External environmental influences can impair the type of protection of the devices.
This impairments can lead to sparks or impermissible heat that ignites the surrounding
explosive atmosphere.
Mount the device in a surrounding enclosure that complies with the requirements for
surrounding enclosures according to IEC/EN 60079–0, and that is rated with the degree
of protection IP54 according to IEC/EN 60529. The surrounding enclosure must have
an EU declaration of conformity according to the ATEX Directive for at least
equipment protection level Gb.
