Siemens Simatic PC Panel PC 870 - Manual (Page 63)

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 devices with
Protection Class IP65 on the front side. Their installation in grounded metal
cabinets (e.g. 8 MC cabinet according to the NV21 catalog) guarantees compliance
with EN 61000-4-2 standards.
The touch panel versions without a USB interface on the front side meet 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