Siemens Panel PC 870 appendix Electromagnetic Compatibility, Pulse shaped interference

4 Electromagnetic Compatibility 4

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	8 kV	3	(Air Discharge)
complying with	4 kV	2	(Contact
EN 61000-4-2		Discharge)
Burst Impulses (rapid,	2 kV (Power Line)	3
temporary interference)	2 kV (Process Data Line)	3
according to EN 61000-4-4
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	2 kV (Power Line)	3
Symmetric Connection	1 kV (Power Line)	3

SIMATIC Panel PC 670/870 Start-Up Instructions 4–1