Better World
Siemens SIRIUS Soft Starter, , 45 kW, 400 → 600 V ac, 3 Phase, IP20
- RS Stock No.:
- 275-905
- Mfr. Part No.:
- 3RW4038-2BB05
- Brand:
- Siemens
Subtotal (1 unit)*
£937.24
(exc. VAT)
£1,124.69
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 18 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £937.24 |
*price indicative
Better World
Our Better World range features products that make it easy for you to make a greener product choice you can trust. Click here to find out more.
- RS Stock No.:
- 275-905
- Mfr. Part No.:
- 3RW4038-2BB05
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Power Rating | 45 kW | |
| Motor Starter Type | Soft Start | |
| Range | SIRIUS | |
| Voltage Rating | 400 → 600 V ac | |
| Phase | 3 | |
| Current Rating | 72 A | |
| IP Rating | IP20 | |
| Better World Product | Yes | |
| Better World Claim | Concentrated or compact solution, Saves energy | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Power Rating 45 kW | ||
Motor Starter Type Soft Start | ||
Range SIRIUS | ||
Voltage Rating 400 → 600 V ac | ||
Phase 3 | ||
Current Rating 72 A | ||
IP Rating IP20 | ||
Better World Product Yes | ||
Better World Claim Concentrated or compact solution, Saves energy | ||
- COO (Country of Origin):
- CZ
The Siemens Soft Starter revolutionises motor control with its integrated bypass contact system, delivering efficiency and compact design. Engineered for robustness, it features reliable thyristors for enhanced performance, assuring intrinsic device protection and motor overload safety. With versatile operational capabilities, this unit accommodates varying loads up to 72 A in demanding environments, ensuring seamless integration across 400 to 600 V AC systems.
Intrinsic device protection for motor safety
User friendly external reset option
Wide operating voltage range
Improved energy efficiency
Adaptable for various installation orientations
Resilient to high ambient temperatures
User friendly external reset option
Wide operating voltage range
Improved energy efficiency
Adaptable for various installation orientations
Resilient to high ambient temperatures
Related links
- Siemens SIRIUS Soft Starter 45 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 18.5 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 7.5 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 55 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 75 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 15 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 37 kW 3 Phase, IP20
- Siemens SIRIUS Soft Starter 30 kW 3 Phase, IP20

