Installation and EMC guidelines
1.9 Fire protection
SIMATIC TDC hardware
18 System Manual, 08/2017, A5E01114865-AL
As output power exceeds the limit of circuitry with power limiting to IEC 61010-1 /
IEC 61131-2, malfunction of a SIMATIC TDC component may pose the risk of fire according
to IEC 61010-1 / IEC 61131-2. In order to prevent spreading of fire, suitable measures must
be taken to prevent ignition of adjacent parts or components as a result of burning parts that
possibly drop out of a component.
Two examples of a fire protection barrier to IEC 61010-1
Example 1
Partition below the rack
Accepted perforation of a metal panel
Minimum thickness [mm] Maximum diameter of the holes
Minimum hole pitch, center-center
2
2
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