Application planning
5.2 Installation location
PN/M-Bus LINK
22 Operating Instructions, 03/2018, A5E44260928-AA
PN/M-Bus LINK is designed for natural heat dissipation by convection. Therefore observe
sufficient clearances:
● For horizontal mounting position: At least 35 mm above and below PN/M-Bus LINK
● For vertical mounting position: At least 35 mm left and right of PN/M-Bus LINK
Provide sufficient space for the connection of supply voltage, Ethernet and M-Bus.
Also make sure that a depth of at least 25 mm remains clear between the module front and
the inside of the enclosure / control panel.
Table 5- 1 Device dimensions
Dimensions of PN/M-Bus LINK
Height 111.5 mm (including overhangs)
75 mm (including overhangs)
You can find the dimension drawing of the PN/M-Bus LINK in the section Dimension drawing
(Page 53).
Humidity and atmospheric pressure
Ensure that there is no condensation at a relative humidity between 10% and 95%.
Ensure that the atmospheric pressure is between 795 hPa and 1080 hPa. This corresponds
to an installation height of -1000 m to +2000 m.
PN/M-Bus LINK is designed for Pollution Degree 2. Pollution degree 2 according to the EN
50178 standard is non-conductive contamination in the normal case which can briefly
become conductive as a result of condensation when the device is out of service.
Contamination of conductive parts by dust, humidity and air pollution can lead to operational
errors and electrical faults in PN/M-Bus LINK.
The enclosure of the PN/M-Bus LINK has IP20 degree of protection according to IEC 60529.
The PN/M-Bus LINK is classified as an "open type" or "open equipment" according to
UL 61010-2-201 or IEC 61010-2-201.
If PN/M-Bus LINK is located in an area where contamination of conductive parts can occur, it
must be protected by an enclosure with the appropriate degree of protection. IP54 is a
protection class that is generally used for electronic systems in heavily polluted
environments and may be suitable for your application.