Lightning Protection And Overvoltage Protection For Fail-Safe Modules - Siemens SIMATIC ET 200SP System Manual

Accessories/spare parts
B.1 Lightning protection and overvoltage protection for fail-safe modules
Components for lightning protection (lightning protection zone transition 0
You must install overvoltage protection devices in the ET 200SP distributed I/O system for
lightning protection purposes. You can find more information in the Designing interference-
free controllers (http://support.automation.siemens.com/WW/view/en/59193566) function
manual.
Online catalog
Additional article numbers for ET 200SP can be found on the Internet
(http://mall.industry.siemens.com) in the online catalog and online ordering system.
See also
Firmware update (Page 242)
B.1

Lightning protection and overvoltage protection for fail-safe modules

Overvoltage arrestors for fail-safe modules
Note
This section only lists the overvoltage arrestors that may be used to protect the fail-safe
modules.
Be sure to observe the detailed information on lightning protection and overvoltage
protection of the ET 200SP distributed I/O system in Electromagnetic compatibility of fail-
safe modules (Page 278).
Components for overvoltage protection of fail-safe modules (lightning protection zone transition
0 to 1)
B
The overvoltage arrestors are only required for unshielded cables. The Configuring
interference-free controllers (http://support.automation.siemens.com/WW/view/en/59193566)
Function Manual lists the overvoltage arrestors which you may use for fail-safe modules.
294
to 1, 1 to 2 and 2 to 3)
B
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ