Siemens Sentron 3VA - Page 120

Applications
3.1 Use of the 3VA UL molded case circuit breakers in line protection
3VA molded case circuit breakers with UL and IEC certification
118 Manual, 01/2019, L1V30435333-01
Electronic trip unit ETU820 LI
ETU820 LI 3-pole and 4-pole:
Line protection - function LI
The electronic trip unit ETU820 has:
● Adjustable parameter settings I
r
and t
ld
for overload protection (L)
● Adjustable parameter setting I
i
for instantaneous short-circuit protection (I)
● With 4-pole versions only: Adjustable parameter setting I
N
for protection of neutral
conductor (N)
ETU820 parameters, 3-pole