Siemens SIRIUS 3RA User Manual

Table of contents
1 Introduction........................................................................................................................................... 7
1.1 Responsibility of the user for system con󹪝guration and functionality..................................... 7
1.2 Purpose of the manual......................................................................................................... 7
1.3 Required basic knowledge.................................................................................................... 8
1.4 Scope of the manual ............................................................................................................ 8
1.5 Siemens Industry Online Support ......................................................................................... 8
1.6 Further documentation........................................................................................................ 9
1.7 Siemens Industry Online Support app................................................................................. 10
1.8 Recycling and disposal ....................................................................................................... 10
1.9 Support Request ................................................................................................................ 10
1.10 Security information .......................................................................................................... 10
2 Standards............................................................................................................................................. 13
2.1 Requirements for switching high-e󹪟ciency motors............................................................. 13
2.2 Voltages ............................................................................................................................ 14
3 Product description.............................................................................................................................. 15
3.1 Overview........................................................................................................................... 15
3.2 Device versions.................................................................................................................. 15
3.2.1 Pre-assembled complete devices ........................................................................................ 17
3.2.2 Self-assembled load feeders ............................................................................................... 19
3.3 Applications....................................................................................................................... 21
3.4 Application environment.................................................................................................... 21
4 Product combinations.......................................................................................................................... 23
5 Functions ............................................................................................................................................. 25
6 Con󹪝guration....................................................................................................................................... 27
6.1 SIRIUS system con󹪝gurator................................................................................................. 27
6.2 Use of 3RA2 load feeders with highly energy-e󹪟cient motors (IE3)..................................... 28
6.2.1 General information on the startup characteristics of highly energy-e󹪟cient motors (IE3)..... 28
6.2.1.1 Short-circuit detection ....................................................................................................... 28
6.2.1.2 Making and breaking capacity of motor starter protectors................................................... 28
6.2.1.3 Rated motor current/setting scale ....................................................................................... 29
6.2.2 Optimization of 3RV2 motor starter protectors for IE3 motors ............................................. 29
6.2.3 Technical modi󹪝cations/restrictions of 3RV2 motor starter protectors .................................. 30
7 Mounting ............................................................................................................................................. 33
7.1 Installation guidelines........................................................................................................ 33
SIRIUS 3RA Load Feeders
Equipment Manual, 02/2022, A5E03656507520A/RS-AC/004 3

Siemens SIRIUS 3RA Specifications

General

Brand	Siemens
Model	SIRIUS 3RA
Category	Industrial Equipment
Language	English