Lightning protection and overvoltage protection
7.3 Rules and components for the transitions between lightning protection zones
Designing interference-free controllers
34 Function Manual, 06/2014, A5E03461486-AB
Components for lightning protection equipotential bonding from lightning protection zone 2 to 3
The following table shows components for lightning protection equipotential bonding from
lightning protection zone 2 to 3 that you can use for S7-1500/ET 200MP and ET 200SP.
Table 7- 4 Components for transition from lightning protection zone 2 to 3 (for S7-1500/ET 200MP
and ET 200SP)
Connection at the interface 2 to 3 with:
1 Three-phase
TN-S, TT system
DEHNrail®
DR M 4P 255
953 400 DEHNguard®
952 400
DEHNguard®
952 010
DEHNrail®
DR M 4P 255 FM *
(I
L
= 25.0 A)
953 405 * DEHNguard®
952 310
DEHNguard®
952 010
DEHNguard®
952 050
2 AC
TN-S, TT system
DEHNrail®
DR M 2P 255
953 200 DEHNguard®
952 200
DEHNguard®
952 010
DEHNrail®
DR M 2P 255 FM *
(I
L
= 25.0 A)
953 205 * DEHNguard®
952 110
DEHNguard®
952 010
DEHNguard®
952 050
3 Supply
N
BLITZDUCTOR® VT,
918 422 BLITZDUCTOR® VT,
918 422
4 Bus cable
MPI/DP RS 485
BLITZDUCTOR® XT,
920 300 --- ---
BLITZDUCTOR® XT,
module BXT ML2 BD
920 271 --- ---
5 Bus cable
RS 232 (V.24)
BLITZDUCTOR® XT,
920 300 --- ---
BLITZDUCTOR® XT,
module BXT ML2 BE
920 222 --- ---
6 Industrial
DEHNpatch®
929 121 --- ---
7 Inputs of digital
modules
N
DEHNconnect® RK,
DCO RK E60
L
919 990 BLITZDUCTOR® XT,
BXT ML4 BD 24
L
920 344