Siemens SIMOCODE pro

System description
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03
1-97
The table below shows decoupling module requirements for different
network forms and configurations (star networks, delta networks and
single-phase networks):
Star networks:
Table 1-20: Decoupling module requirements for star networks
Star network Network configuration Decoupling
module
required
Note
4-wire, star
grounded with low
impedance
No TN-S system
according to
IEC 60364
4-wire, star
grounded with high
impedance
Yes -
3-wire, star
grounded with low
impedance
No TN-C system
according to
IEC 60364
3-wire, star
grounded with high
impedance
Yes -
3-wire, star
insulated
Yes IT system according
to IEC 60364
L1
L2
L3
N
PE
L1
L2
L3
N
PE
R
L1
L2
L3
PE
L1
L2
L3
PE
R
L1
L2
L3
PE