Siemens SIRIUS 3RA

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SIRIUS 3RA Load Feeders

6 Equipment Manual, 02/2022, A5E03656507520A/RS-AC/004

Main Page

Table of Contents3
Introduction7
Responsibility of the User for System Configuration and Functionality7
Purpose of the Manual7
Required Basic Knowledge8
Scope of the Manual8
Siemens Industry Online Support8
Further Documentation9
Siemens Industry Online Support App10
Recycling and Disposal10
Support Request10
Security Information10
Standards13
Requirements for Switching High-Efficiency Motors13
Voltages14
Product Description15
Overview15
Device Versions15
Pre-Assembled Complete Devices17
Self-Assembled Load Feeders19
Applications21
Application Environment21
Product Combinations23
Functions25
Configuration27
SIRIUS System Configurator27
Use of 3RA2 Load Feeders with Highly Energy-Efficient Motors (IE3)28
General Information on the Startup Characteristics of Highly Energy-Efficient Motors (IE3)28
Short-Circuit Detection28
Making and Breaking Capacity of Motor Starter Protectors28
Rated Motor Current/Setting Scale29
Optimization of 3RV2 Motor Starter Protectors for IE3 Motors29
Technical Modifications/Restrictions of 3RV2 Motor Starter Protectors30
Mounting33
Installation Guidelines33
Minimum Clearances to Grounded, Live and Insulated Parts (400 V/500 V/690 V AC)33
Mounting Variants under Different Conditions and Frequency of Use35
3RV2917 Infeed System41
Installation Guidelines41
Derating42
Mounting and Disassembling Load Feeders42
Overview42
Load Feeder with Screw-Type Connection System44
Load Feeder with Spring-Loaded Connection System47
Load Feeder with Hybrid Connection57
Assembly and Disassembly with Different Mounting Systems61
On DIN Rails Without DIN Rail Adapter62
On DIN Rail with DIN Rail Adapter64
Mounting Direct-On-Line Starters and Reversing Starters on DIN Rail Adapters (Sizes S00 and S0)70
Mounting Direct-On-Line Starters and Reversing Starters on DIN Rail Adapters (Size S2)73
Mounting Direct-On-Line Starters and Reversing Starters on DIN Rail Adapters (Size S3)80
On Busbar System88
Mounting on Base Plate110
Mounting on Base Plate Without DIN Rail Adapter110
Mounting on Base Plate with DIN Rail Adapter112
Connection119
Operation121
Accessories123
Overview123
Accessories for Constructing Contactor Assemblies for Reversing and Star-Delta (Wye-Delta) Start124
Link Modules124
Accessories for DIN Rail Mounting127
Accessories for Busbar Mounting129
Technical Data131
Technical Data in Siemens Industry Online Support131
Overview Tables131
Circuit Diagrams133
Cax Data133
Types of Coordination135
References137
Manuals - SIRIUS Modular System138
Dimension Drawings (Dimensions in MM)139
Cax Data139

Siemens SIRIUS 3RA

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