SIMATIC Panel PC 670/870 Start-Up Instructions 4–1
4 Electromagnetic Compatibility
The Panel PC 670/870 meets the requirements of German EMC laws as well as
European Directives concerning EMC.
The following includes information on interference immunity of the
Panel PC 670/870 and on interference suppression.
The Panel PC 670/870s have been conceived as installation devic es with
Protection Class IP65 on the front side. Their installation in grounde d metal
cabinets (e.g. 8 MC cabinet according to the NV21 catalog) guarantees c ompliance
with EN 61000-4-2 standards.
The touch panel versions without a USB interface on the front side m eet the
requirements complying with NEMA 4.

Pulse shaped interference

Pulse shaped interference Tested with Corresponds to
Severity Level
Electrostatic discharge
complying with
EN 61000-4-2
8 kV
4 kV
3 (Air Discharge)
2 (Contact
Discharge)
Burst Impulses (rapid,
temporary interference)
according to EN 61000-4-4
2 kV (Power Line)
2 kV (Process Data Line)
3
3
High-energy single Impulse
(Surge) according to
EN 61000-4-5
(24 V model only with
protective lightning conductor
KT Type A D 24 V, Order No.
DSN:919253)
Asymmetric Connection
Symmetric Connection
2 kV (Power Line)
1 kV (Power Line)
3
3
4