3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
5
Table of contents
1
Introduction................................................................................................................................. 11
1.1
Service&Support ............................................................................................................... 11
1.2
Technical data in Siemens Industry Online Support ........................................................... 14
1.3
DataMatrix code ................................................................................................................ 15
2
Safety information ....................................................................................................................... 17
2.1
Standards.......................................................................................................................... 17
2.2
Product-specific safety information .................................................................................... 18
2.3
Approvals, test certificates, characteristics ......................................................................... 18
3
System overview ......................................................................................................................... 19
3.1
Product description ............................................................................................................ 19
3.2
Application planning .......................................................................................................... 20
3.3
Connection methods.......................................................................................................... 21
3.3.1
Screw-type connection ...................................................................................................... 21
3.3.2
Spring-loaded connection .................................................................................................. 23
3.3.3
Device replacement by means of removable terminals ....................................................... 28
3.4
Mounting / removal ............................................................................................................ 29
3.4.1
Mounting 3RR2 current monitoring relay ............................................................................ 29
3.4.2
Mounting the 3UG4 monitoring relay .................................................................................. 34
3.4.3
Installing the 3UG458. monitoring relay. ............................................................................ 35
3.5
Overview of the functions .................................................................................................. 36
3.5.1
3RR2 current monitoring relays ......................................................................................... 36
3.5.2
3UG45 / 3UG46 monitoring relays ..................................................................................... 37
3.6
Menu-based operation ....................................................................................................... 39
4
3RR2 current monitoring relays ..................................................................................................... 45
4.1
Product description ............................................................................................................ 45
4.2
Application areas ............................................................................................................... 47
4.3
Performance features of current monitoring relays ............................................................. 48
4.3.1
General data ..................................................................................................................... 49
4.3.2
Properties.......................................................................................................................... 50
4.3.3
Configuration of load feeders ............................................................................................. 51
4.3.4
Combinations with 3RT20 contactor .................................................................................. 52
4.4
3RR21 current monitoring relays ....................................................................................... 53
4.4.1
Operator controls and connection terminals ....................................................................... 53
4.4.2
Function ............................................................................................................................ 54
4.4.3
Operation .......................................................................................................................... 56
4.4.4
Diagnostics ....................................................................................................................... 58
4.4.5
Circuit diagrams ................................................................................................................ 59