Siemens 3VA1 100 A Manual page 112

Applications
3.1 Line protection applications of 3VA molded case circuit breakers
Electronic trip unit ETU330 LIG
ETU330 LIG 3-pole:
ETU330 LIG 4-pole:
Line protection - function LIG
The electronic trip unit ETU330 has:
● adjustable parameter settings I
● adjustable parameter setting I
● adjustable parameter settings I
● With 4-pole versions only: Neutral conductor protection (N) which can be deactivated
112
and t for overload protection (L)
r r
for instantaneous short-circuit protection (I)
i
and t for ground-fault protection (G)
g g
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02