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13.2.5.1 General information......................................................................................................... 249

13.2.5.2 Installation speci󹪝cations ................................................................................................. 251

13.2.5.3 Potential for optimization................................................................................................. 254

13.2.5.4 Installation faults ............................................................................................................. 256

13.2.5.5 Internal circuit diagram .................................................................................................... 259

13.2.5.6 Installing ......................................................................................................................... 260

13.2.5.7 Dimension drawings ........................................................................................................ 262

13.3 Accessories for 3UG458.-1AW30 / 3UG4583-1CW30 insulation monitoring relays ............. 266

13.3.1 Sealable cover.................................................................................................................. 266

13.3.2 3UG4983 voltage reducer module for the 3UG4583-1CW30 monitoring relay................... 267

13.3.2.1 Internal circuit diagrams................................................................................................... 269

13.3.2.2 Technical data.................................................................................................................. 271

13.4 Accessories for 3UG4583-1CW31 insulation monitoring relays.......................................... 272

13.4.1 3UG4983-.AA01 voltage reducer module for the 3UG4583-1CW31 monitoring relay......... 272

13.4.1.1 Internal circuit diagrams................................................................................................... 274

13.4.1.2 Typical circuit diagrams (3UG4983-.AA01)........................................................................ 275

13.4.1.3 Technical speci󹪝cations .................................................................................................... 277

A References ......................................................................................................................................... 279

B Parameters......................................................................................................................................... 281

C Dimension Drawings.......................................................................................................................... 291

C.1 Dimension drawings 3RR2 monitoring relay...................................................................... 291

C.2 Dimension drawings 3UG4 monitoring relays ................................................................... 298

C.2.1 Dimension drawings 3UG4 monitoring relays. (2 connecting terminals)............................ 298

C.2.2 Dimension drawings 3UG4 monitoring relays. (3 connecting terminals)............................ 299

C.2.3 Dimension drawings 3UG4 monitoring relays. (4 connecting terminals)............................ 300

C.2.4 Dimension drawings for 3UG458.-1.W30 insulation monitoring relay/3UG4983 voltage

reducer module) .............................................................................................................. 301

C.2.5 Dimension drawings for 3UG458.-..W31 insulation monitoring relay/3UG4983-.AA01

voltage reducer module).................................................................................................. 302

D Menu-based operation ...................................................................................................................... 307

Index.................................................................................................................................................. 325

Table of contents

SIRIUS 3UG4 / 3RR2 monitoring relay

8 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005