Siemens SENTRON 3VA2 - Page 137

Applications
3.2 Line protection applications of 3VA molded case circuit breakers
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
135
Electronic trip units ETU560 LSIG and ETU860 LSIG
ETU560 LSIG 3-pole and 4-pole units:
ETU860 LSIG 3-pole and 4-pole units:
Line protection - function LSIG
The ETU560 and ETU860 electronic trip units have:
● Adjustable parameter settings I
r
and t
r
for overload protection (L)
● Adjustable parameter settings I
sd
and t
sd
for short-time delayed short circuit protection (S)
● Adjustable parameter setting I
i
for instantaneous short-circuit protection (I)
● Adjustable parameter settings I
g
and t
g
for ground-fault protection (G)
● With 4-pole versions: adjustable parameter setting I
N
for neutral conductor protection (N)
optionally available for 3-pole versions