User Manual

3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
5
Table of contents
1 Introduction.............................................................................................................................................. 11
2 Safety informa
tion.................................................................................................................................... 13
2.1 Standards.....................................................................................................................................13
2.2 Product-specific
safety
information..............................................................................................14
2.3 Approvals, test certificates, characteris
tics..................................................................................15
3 System overview...................................................................................................................................... 17
3.1 Product description ......................................................................................................................17
3.2 Application planning.....................................................................................................................18
3.3 Connec
tion methods ....................................................................................................................19
3.3.1 Screw-t
ype connection.................................................................................................................19
3.3.2
Spring-loaded connection ................................................................................................
............21
3.3.3 Device replacement by
means of removable terminals...............................................................25
3.4 Mounting / removal ........................................................................................................
..............26
3.4.1 Mounting 3RR2 current monitoring relay.....................................................................................26
3.4.2 Mounting the 3UG4 monitoring relay
...........................................................................................30
3.4.3 Inst
alling the 3UG458. monitoring relay.
......................................................................................32
3.5 Overv
iew of the functions.............................................................................................................33
3.5.1 3RR2 current monitoring relays ..........................................................................................
.........33
3.5.2 3UG45 / 3UG46 monitoring relays...............................................................................................34
3.6 Menu-based operation
.................................................................................................................36
4 3RR2 c
urrent m
onitoring relays
............................................................................................................... 41
4.1 Product description ......................................................................................................................41
4.2 Application areas .........................................................................................................................42
4.3 Performanc
e features of current monitoring relays......................................................................43
4.3.1
General data ................................................................................................................................43
4.3.2 Properties
.....................................................................................................................................44
4.3.3 Configuration of load feeders.......................................................................................................45
4.3.4
Combinations with 3RT20 contactor.......................................................................................
.....45
4.4 3RR21 c
urrent monitoring relays
.................................................................................................46
4.4.1 Operator c
ontrols and connection terminals................................................................................46
4.4.2 Function
.......................................................................................................................................47
4.4.3 Operation .....................................................................................................................................49
4.4.4 Diagnostics.............................................................................................................
......................50
4.4.5 Circuit diagrams ........................................................................................................
...................50
4.4.6 Tech
nical data..............................................................................................................................51
4.5
3RR22 current monitoring relay
s .................................................................................................58
4.5.1 Operator c
ontrols and connection terminals................................................................................58
4.5.2 Function
.......................................................................................................................................59