Low-Voltage Protection Components For Lightning Protection Zones 1 <--> 2 - Siemens SIMATIC S7-400 Installation Manual

Assembling and Installing Systems
Low-Voltage Protection Elements for 1 <- -> 2
For the transition points between lightning protection zones 1 <--> 2 we
recommend the surge protection components listed in table A-4
Table A-4 Low-Voltage Protection Components for Lightning Protection Zones 1 <--> 2
Ser. Cables for ...
No.
1 3-phase TN-C system
3-phase TN-S system
3-phase TT system
AC TN-S system
AC TN-C system
AC TT system
2 24 VDC Power Supply
3 Bus cable
MPI RS 485
•
RS 232 (V.24)
•
4 Inputs of digital modules 24
VDC
5 Outputs of digital modules 24
VDC
6 Inputs/outputs of digital
modules
120 VAC
•
230 VAC
•
7 Inputs of analog modules up
to 12 V +/--
* You can order these components directly at:
A-26
... equip transition point 1 <- -> 2 with:
3 pieces of DEHNguard 275 surge arresters
4 pieces of DEHNguard 275 surge arresters
3 pieces of DEHNguard 275 surge arresters
phase L1/L2/L3 to N
1 piece of DEHNgap C N-PE surge N to PE 900 131*
2 pieces of DEHNguard 275 surge arresters
1 piece of DEHNguard 275 surge arresters
1 piece of DEHNguard 275 surge arresters
phase L to N
1 piece of DEHNgap C, N-PE surge
arrester, N to PE
1 piece of Blitzductor VT lightning
conductor, type AD 24 V
Blitzductor CT surge arrester,
•
type MD/HF
1 piece of per conductor pair
•
surge arrester Blitzductor CT
type ME 15 V
1 piece of Low-voltage surge arrester,
type FDK 2 60 V
1 piece of Low-voltage surge arrester
FDK 2D5 24
2 pieces of Surge arresters
DEHNguard 150
•
DEHNguard 275
•
1 piece of Surge arrester
Blitzductor CT type MD 12 V
DEHN + SÖHNE
GmbH + Co. KG
Elektrotechnische Fabrik
Hans-Dehn-Str. 1
D-92318 Neumarkt
Automation System S7-400 Hardware and Installation
Order No.
900 600*
5SD7 030
900 600*
5SD7 030
900 600*
5SD7 030
900 600*
5SD7 030
900 600*
5SD7 030
900 600*
5SD7 030
900 131*
918 402*
919 506* and
919 570*
919 506* and
919 522*
919 993*
919 991*
900 603*
900 600*
919 506* and
919 541*
A5E00850741-01