Important Notes
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06
vii
Objective of this manual
This manual contains basics and tips on the application of SIRIUS 3RW44 soft 
starters. The SIRIUS 3RW44 soft starter is an electronic motor control device for 
optimized starting and stopping of 3-phase asynchronous motors.
The manual describes all the SIRIUS 3RW44 soft starter functions. 
Target group
The manual is aimed at all users who deal with
• commissioning, 
• service and maintenance, 
• planning and configuration of systems
Required basic knowledge
In order to understand this manual, general knowledge in the field of general 
electrical engineering is required.
Validity
This manual is valid for SIRIUS 3RW44 soft starters. It contains a description of 
the components that are valid at the time of publication of this manual. We 
reserve the right to include an updated product information leaflet with new 
components and new component versions.
Definitions
If the short form 3RW44 is used in the text, it refers to the SIRIUS 3RW44 soft 
starter.
Standards and approvals
The SIRIUS 3RW44 soft starter complies with the IEC/EN 60947-4-2 standard.
Important Notes