Siemens SIMATIC S7-300 Hardware And Installation Manual page 224

Appendix
Table 12-8 High-voltage protection of cables with surge voltage protection omponents
Consec. 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 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
12-22
... equip transition point 0 <-> 1
with:
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 Programmable Controller Hardware and Installation
Order No.
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*
A5E00105492-02