Siemens 3UG4 - Circuit Diagrams

3UG4.1 line monitoring relay
6.3 3UG4512 line monitoring relay
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
115
6.3.4
Circuit diagrams
Internal circuit diagrams 3UG4512
3UG4512-.A.. line monitoring relays
3UG4512-.B.. line monitoring relays
Note
It is not necessary to fuse the measuring circuit to protect the device. Fusing for line
protection depends on the cross
-section used.
Note
The 3UG4512 line monitoring relays are only
suitable for line frequencies of 50 / 60 Hz!