Better World
Siemens SIRIUS 3RW Soft Starter, , 315 kW, 480 V ac, 3 Phase
- RS Stock No.:
- 185-9722
- Mfr. Part No.:
- 3RW5245-6AC14
- Brand:
- Siemens
Subtotal (1 unit)*
£3,340.58
(exc. VAT)
£4,008.70
(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 + | £3,340.58 |
*price indicative
Better World
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- RS Stock No.:
- 185-9722
- Mfr. Part No.:
- 3RW5245-6AC14
- 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 | 315 kW | |
| Motor Starter Type | Soft Start | |
| Range | SIRIUS 3RW | |
| Voltage Rating | 480 V ac | |
| Phase | 3 | |
| Current Rating | 315 A | |
| IP Rating | IP00 | |
| Overall Length | 210mm | |
| Overall Width | 202.5mm | |
| Better World Claim | Concentrated or compact solution, Saves energy | |
| Mounting Type | Screw Fixing | |
| Overall Depth | 388mm | |
| Series | 3RW52 | |
| Better World Product | Yes | |
| Standards Met | CCC Certified, CE Certified, CSA Certified, EAC Certified, UL Listed | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Power Rating 315 kW | ||
Motor Starter Type Soft Start | ||
Range SIRIUS 3RW | ||
Voltage Rating 480 V ac | ||
Phase 3 | ||
Current Rating 315 A | ||
IP Rating IP00 | ||
Overall Length 210mm | ||
Overall Width 202.5mm | ||
Better World Claim Concentrated or compact solution, Saves energy | ||
Mounting Type Screw Fixing | ||
Overall Depth 388mm | ||
Series 3RW52 | ||
Better World Product Yes | ||
Standards Met CCC Certified, CE Certified, CSA Certified, EAC Certified, UL Listed | ||
- COO (Country of Origin):
- CZ
Siemens 3-Phase Soft Starter, 315kW, 200 to 480V Supply Voltage - 3RW52 Series - 3RW5245-6AC14
Reduce strain on your mechanical equipment by installing this Siemens soft starter. When first turned on, motors receive an initial rush of energy which can affect voltage supply. To prevent potential damage, this unit regulates the startup voltage, so it's gradually delivered until complete acceleration is achieved. A current rating of 315kW ensures seamless transmission from one phase to another, even under voltages as high as 400V. Rely on this soft starter in your motorised installations to regulate the power-up process and ensure smooth activation.
• 393 (H) x 210 (W) x 203mm (D) for convenient installation in tight spaces
• Reliable LED (light-emitting diode) signalling system for easy diagnosis
• Power-up ramp time between 0 and 20 seconds for swift but steady acceleration that prevents breakdowns
• Torque-control capability minimises the risk of wear and tear
• Reliable LED (light-emitting diode) signalling system for easy diagnosis
• Power-up ramp time between 0 and 20 seconds for swift but steady acceleration that prevents breakdowns
• Torque-control capability minimises the risk of wear and tear
Can I connect this motor soft starter to a communication module?
This device can be modified to feature a communication module by connecting it to a standard PROFINET, PROFIBUS or Modbus transmission control protocol. This enables connection to external devices like laptops that can be used to remotely monitor its state and adjust its settings.
