Siemens SIRIUS 3UG4 - Page 144

Display Memory = yes; Init = OK
Relay switching behavior = NO (open-circuit principle)
I▲ / I!
Mem = yes
Init = OK
A1-A2
Reset
I
!
I
I=0
11/14
11/12
21/24
21/22
Init
onDel
onDel
onDel
Del
I
Hyst
Hyst = 5 %
I = 0.02A
t > 2,5s
>
I
I
!
>
I
I
Display Memory = yes; Init = OK
Relay switching behavior = NC (closed-circuit principle)
I▲ / I!
Mem = yes
Init = OK
A1 - A2
Reset
I
!
I
I=0
11/14
11/12
21/24
21/22
Init
onDel
onDel onDel
Del
I
>
I
I
!
>
I
I
Hyst
Hyst = 5 %
I = 0.02A
t > 2,5s
Note
The system is immediately switched o󹪜 in the event of an open-circuit or short-circuit in the
transformer connection cables.
3UG4625 residual current monitoring relay with 3UL23 transformer
8.3 Functions
SIRIUS 3UG4 / 3RR2 monitoring relay
144 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005