Product details
Overview
The Siemens SIRIUS 3RW4075-6BB44 soft starter provides efficient motor control for heavy-duty industrial applications. It handles 356 A at 40°C and supports motors up to 200 kW. Designed with robust thyristor technology, it ensures smooth start and stop sequences while protecting the motor from overload. Author: Powergear X Automation.
Key Selling Points
- Integrated bypass contact system minimizes power loss and extends motor life.
- Advanced thyristor technology provides precise control over torque and current.
- Built-in intrinsic protection and adjustable current limitation enhance reliability.
- Compatible replacement model: 3RW5075-6AB14 (preferred successor for phased-out units).
- Flexible wiring through busbar and screw terminals for simplified installation.
Technical Specifications
- Brand: Siemens
- Series: SIRIUS
- Model: 3RW4075-6BB44
- Rated Current: 356 A at 40°C; 315 A at 50°C
- Power: 200 kW at 400 V; 110 kW at 230 V
- Operating Voltage: 200–460 V AC, Frequency 50–60 Hz
- Control Supply: 230 V AC ±15%, 50/60 Hz
- Continuous Operating Current: 115% of Ie at 40°C
- Protection Class: IP00; Pollution Degree 3 (IEC 60947-4-2)
- Ambient Temperature: -25°C to +60°C; Storage -40°C to +80°C
- Altitude: Up to 5000 m
- Mounting: Screw fixing, vertical position recommended
- Dimensions: Width 160 mm × Height 230 mm × Depth 278 mm
Installation Guide
- Install vertically with at least 100 mm clearance above and 5 mm at the sides.
- Maximum permissible wire length: 300 m.
- Use proper torque for busbar connections and ensure conductor cross-section up to 300 mm².
- Check environmental conditions and ensure proper ventilation during installation.
Packaging List
- 1 × Siemens SIRIUS Soft Starter 3RW4075-6BB44
- 1 × Quick Installation Manual
- 1 × Connection Labeling Kit
- Shipped securely via FedEx, UPS, or DHL with tracking number
Shipping and Warranty
- Includes a 12-month limited warranty with full factory inspection prior to dispatch.
- Express worldwide delivery with customs-ready documentation.
- Contact our team for bulk orders, pallet packaging, or OEM labeling options.
FAQ
- Q: How can I adjust the current limit for motor start?
A: Set the current limit via the front control panel while observing motor current on the display. - Q: Which wire sizes are supported for main terminals?
A: Use up to 600 kcmil for front clamping or 500 kcmil for back clamping points. - Q: Is this model suitable for high-altitude installations?
A: Yes, it operates safely up to 5000 m above sea level.
Contact Information
- For inquiries, contact sales@powergearx.com or reach us via WhatsApp: +86 18030005825
- Visit our website for detailed catalogs: Powergear X Automation
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Original Source: https://www.powergearx.com/
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