Siemens SIMATIC ET 200iSP Operating Instructions Manual page 363

Components of the application example
The following table explains the components of the application example.
Table A-12 Components for overvoltage protection of the application example
Consecutive num‐
ber from the figure
①
Surge arrester 24 V supply
DEHNguard DG S 75 FM
Part No. 952 091* **
DEHNgap DGP C S FM
Part No. 952 035* **
Busbar MVS 1 2
Part No. 900 617* **
Pin-shaped terminal STAK 2x16
Part No. 900 589* **
②
Surge arrester PROFIBUS RS 485-IS Blitzductor base
part BCT BAS EX,
Part. No. 920 301**
Blitzductor module BXT ML2 BD HF EX 6,
Part. No. 920 538**
③
Surge arrester I/Os, depending on the number of dou‐
ble cores used
Blitzductor base part BXT BAS EX,
Part. No. 920 301**
Blitzductor module BXT ML4 BD EX 24,
Part. No. 920 381**
④
Additional terminal for the shield connection of the bus
line
⑤
Equipotential bonding line 16 mm
⑥
Equipotential bonding line 6 mm
* These components are designed for non-hazardous zones. If these units are installed in hazardous area Zone 1, the
components must be installed in a certified EX d enclosure (flameproof encapsulated). For additional information and ordering
refer to :
Siemens AG
I IA CE S EN
Siemensallee 84
76187 Karlsruhe
Tel. +49 (0)721 595 3776
** Direct ordering of components from:
DEHN + SÖHNE GmbH + Co. KG
Hans-Dehn-Str. 1
D-92318 Neumarkt
http://www.dehn.de (http://www.dehn.de)
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Component
Cu
2
Cu
2
A.5 Lightning and overvoltage protection
Meaning
Protection against indirect lighting effects and
overvoltages at zone transition 0
to 2
Protection against indirect lighting effects and
overvoltages at zone transition 0
to 2
Protection against indirect lighting effects and
overvoltages at zone transition 0
to 2
Discharging of interference currents
Standardization of reference potentials
Discharging of interference currents
Appendix
to 1 and 1
B
to 1 and 1
B
to 1 and 1
B
363