High-Voltage Protection Of Cables With Surge Voltage Protection Components - Siemens S7-300 Installation Manual

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If you cannot take measures as described above, you must install a high-voltage
protection for your system between the 0 <-> 1 transition points with a lightning
conductor. The table below contains the components you can use for high-voltage
protection of your plant.
Table 12-8

High-voltage protection of cables with surge voltage protection components

&RQ &DEOHV IRU 
VHF
QR
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 MPI bus cable, RS485, RS232 (V.24)
4 Inputs/outputs of digital modules 24 V
5 24 VDC power supply module
6 Inputs/outputs of digital modules and
120/230 VAC power supply
7 Inputs/outputs of analog modules up to
12 V +/-
* You can order these components directly from:
DEHN + SÖHNE
GmbH + Co. KG
Elektrotechnische Fabrik
Hans-Dehn-Str. 1
D-92318 Neumarkt
12-20
 HTXLS WUDQVLWLRQ SRLQW  ! 
1 x DEHNbloc/3
lightning conductor, phase
L1/L2/L3 to PEN
1 x DEHNbloc/3
lightning conductor, phase
L1/L2/L3 to PE
1 x DEHNbloc/1
lightning conductor, N to PE
1 x DEHNbloc/3
lightning conductor, phase
L1/L2/L3 to N
1 x DEHNgap B/n
N-PE lightning conductor, N
to PE
2 x DEHNbloc/1
lightning conductor, phase L1
+N to PE
1 x DEHNbloc/1
lightning conductor, phase L
to PEN
1 x DEHNbloc/1
lightning conductor, phase to
N
1 x DEHNgap B/n
N-PE lightning conductor, N
to PE
1 x Blitzductor VT Lightning
conductor,
type A D 24 V -
1 x Blitzductor CT lightning
conductor, type B
DEHNrail 24 FML
1 x Blitzductor VT
lightning conductor, type AD
24 V -
2 x DEHNbloc/1 lightning
conductor
1 x Blitzductor CT lightning
conductor, type B
S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
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900 110*
5SD7 031
900 110*
5SD7 031
900 111*
5SD7 032
900 110*
5SD7 031
900 130*
900 111*
5SD7 032
900 111*
5SD7 032
900 111*
5SD7 032
900 130*
918 402*
919 506* and
919 510*
909 104*
918 402*
900 111*
5SD7 032
900 111*
5SD7 032
919 506* and
919 510*
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