309 / 582
BETA Protecting
Overvoltage Protection Devices
Configuration
6/23
Siemens ET B1 · 10/2008
6
*
You can order this quantity or a multiple thereof.
■
Schematics
Examples
Lightning arresters, type 1
Series connection
Parallel connection
5
SD7 411-1 for 1-wire systems
5
SD7 412-1 for TN-S/TT systems
5
SD7 413-1 for TN-C systems
5
SD7 414-1 for TN-S/TT systems
RS = remote signaling
I2_13782b
L1
L2
L3
N
PE
L1
L2
L3
N
PE
F1
L1
L2
L3
N
RS
I2_13783b
L1
L2
L3
N
PE
L1
L2
L3
N
PE
F1
L1
L2
L3
N
F2
RS
I2_16014
L1
L1
PEN
PEN
F1
PEN
RS
L1
N
PE
L1
N
PE
F1
I2_13778b
L1
L1
N
RS
I2_13780b
L1
PEN
L2
L3
F1
PEN
L1
L2
L3
PEN
L2
L3
L1
RS
I2_13782b
L1
L2
L3
N
PE
L1
L2
L3
N
PE
F1
L1
L2
L3
N
RS
© Siemens AG 2008