Siemens Simatic Operating Instructions Manual page 61

Provide sufficient space for the connection of supply voltage, Ethernet and CAN 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
PN/CAN LINK dimensions
Width
Height
Depth
The dimension drawing of the PN/CAN LINK is available in the section Dimension drawing
(Page 110).
NOTICE
Damage due to overheating
You must comply with all the instructions regarding the installation site and mounting
position. Otherwise the device may malfunction or incur permanent damage as a result of
overheating.
Pollution degree
The PN/CAN 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 not in operation.
Pollution of conductive parts through dust, humidity and air pollution can result in fault
conditions and electrical faults in the PN/CAN LINK.
Degree of protection
The housing of the PN/CAN LINK has degree of protection IP20 according to IEC 60529.
The PN/CAN LINK is also rated as "open type" or "open equipment" according to
UL 61010-2-201 or IEC 61010-2-201.
If the PN/CAN LINK is located in an area in which pollution of conductive parts can occur,
the PN/CAN LINK must be protected by an enclosure with the corresponding 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.
SIMATIC PN/CAN LINK
Operating Instructions, 03/2018, A5E39895388-AB
Device dimensions
70 mm
111.5 mm (including overhangs)
75 mm (including overhangs)
Application planning
5.2 Installation location
59