Key facts
- Brand
- Siemens
- Model
- 3RW44
- Documents
- 4
- Languages
- ZH
- Last added
- 2022-09-30
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Siemens SIRIUS 3RW44 Soft Starter System Manual
The Siemens SIRIUS 3RW44 system manual provides comprehensive guidance for planning, installing, wiring, and commissioning the soft starter. It includes safety instructions, assembly steps, connection diagrams, and detailed parameter settings for various start-up modes.
The document also describes diagnostic functions, PROFIBUS DP communication module setup, technical specifications, and troubleshooting procedures. It is intended for qualified professionals who install and maintain the equipment. This manual is written in Chinese.
Siemens 3RW44 specifications
| Starting Voltage Range (3RW30) | 40...100 % |
|---|---|
| Maximum Starting Time (3RW30) | 20 seconds |
| Overload Protection Class (3RW40) | Class 10, 15, 20 |
| Maximum Starting Frequency (3RW30) | 20 times per hour |
| Maximum Starting Current Limit (3RW40) | 300% of motor current Ie |
Source: Siemens SIRIUS Soft Starters 3RW30 and 3RW40 Product Overview
All Siemens 3RW44 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the main advantage of using a soft starter over direct starting?
Soft starters reduce power loss and provide better protection for mechanical transmission devices compared to direct starting.
From: Siemens SIRIUS Soft Starters 3RW30 and 3RW40 Product Overview
How does the 3RW40 differ from the 3RW30 regarding stopping?
The 3RW40 provides soft stopping (0...20 seconds) and adjustable current limiting, whereas the 3RW30 focuses on starting.
From: Siemens SIRIUS Soft Starters 3RW30 and 3RW40 Product Overview
What does the warning triangle symbol indicate in the manual?
The warning triangle indicates a safety prompt related to personal injury risk.
What are the physical dimensions of the 3RW44 model?
The dimensions are a = 180 mm, b = 170 mm, c = 37 mm (other size parameters are listed in the drawing).
From: Siemens SIRIUS 3RW44 Softstarter System Operation Manual
Which IEC standard does the SIRIUS 3RW44 comply with?
It complies with IEC/EN 60947‑4‑2.
From: Siemens SIRIUS 3RW44 Softstarter System Operation Manual
What is the allowed storage temperature range for the 3RW44 soft starter?
The device can be stored and used at temperatures from –25 °C up to +80 °C.