Siemens 3UG4 User Manual

Table of contents
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
9
10.6 Circuit diagrams .............................................................................................................. 281
10.6.1 Internal circuit diagrams................................................................................................... 281
10.6.2 Wiring examples .............................................................................................................. 282
10.7 Technical data ................................................................................................................. 283
11 3UG4641 cos phi and active current monitoring relay .................................................................... 289
11.1 Application areas ............................................................................................................. 289
11.2 Operator controls and connection terminals ..................................................................... 290
11.3 Functions ........................................................................................................................ 291
11.4 Operation ........................................................................................................................ 296
11.5 Diagnostics ..................................................................................................................... 297
11.5.1 Indications on the display ................................................................................................ 297
11.5.2 Reset .............................................................................................................................. 298
11.6 Circuit diagrams .............................................................................................................. 299
11.6.1 Internal circuit diagrams................................................................................................... 299
11.6.2 Wiring examples .............................................................................................................. 300
11.7 Technical data ................................................................................................................. 302
12 3UG4651 speed monitoring relay ................................................................................................ 307
12.1 Application areas ............................................................................................................. 307
12.2 Operator controls and connection terminals ..................................................................... 308
12.3 Functions ........................................................................................................................ 309
12.4 Operation ........................................................................................................................ 312
12.5 Diagnostics ..................................................................................................................... 313
12.5.1 Indications on the display ................................................................................................ 313
12.5.2 Reset .............................................................................................................................. 314
12.6 Circuit diagrams .............................................................................................................. 315
12.6.1 Internal circuit diagrams................................................................................................... 315
12.6.2 Wiring examples .............................................................................................................. 316
12.7 Technical data ................................................................................................................. 317
13 Accessories .............................................................................................................................. 323
13.1 Accessories for 3RR2 current monitoring relays ............................................................... 323
13.1.1 Sealable cover ................................................................................................................ 323
13.1.2 Terminal support for stand-alone assembly...................................................................... 324
13.2 Accessories for 3UG4 monitoring relays .......................................................................... 327
13.2.1 Sealable cover ................................................................................................................ 327
13.2.2 Push-in lugs .................................................................................................................... 328
13.2.3 Probes for the 3UG4501 monitoring relay ........................................................................ 329
13.2.4 Summation current transformer for the 3UG4624 monitoring relay ................................... 332
13.2.5 3UL23 residual current transformers for 3UG4625 monitoring relays................................ 333
13.2.5.1 General information ......................................................................................................... 333
13.2.5.2 Installation specifications ................................................................................................. 335
13.2.5.3 Potential for optimization ................................................................................................. 339
13.2.5.4 Installation faults.............................................................................................................. 341

Siemens 3UG4 Specifications

General

Brand	Siemens
Model	3UG4
Category	Relays
Language	English