Product details
Siemens 3RW4458-6BC44 – Ultimate Power Solution
The Siemens SIRIUS 3RW4458-6BC44 represents peak performance in motor control. This industrial soft starter manages massive 970A standard and 1680A inside-delta currents. It controls motors from 560kW to 1000kW with precision engineering.
Massive Power Specifications
- Manufacturer: Siemens SIRIUS
- Product Code: 3RW4458-6BC44
- Standard Current: 970A at 40°C
- Inside-Delta Current: 1680A at 40°C
- Standard Power: 560kW at 400V
- Inside-Delta Power: 1000kW at 400V
- Voltage Range: 200-460V AC
- Control Supply: 230V AC
Critical Safety Systems
- High insulation voltage: 690V rated
- Complete motor overload protection
- Advanced thermistor monitoring
- Adjustable current limitation
- Integrated bypass contacts
- External reset capability
Industrial-Grade Construction
- Dimensions: 510×640×290mm
- Mounting: Heavy-duty screw fixing
- Rotation: Full ±90° capability
- Tilt Range: ±22.5° adjustment
- Clearance Required: 100mm above
- Side Spacing: 5mm minimum
High-Capacity Wiring
- Main Circuit: Busbar connection
- Control Circuit: Screw terminals
- Auxiliary Contacts: 3 NO + 1 CO
- Cable Size: 50-240mm² main
- AWG Compatibility: 2/0 to 500 kcmil
- Maximum Distance: 500 meters
Environmental Performance
- Operating Temperature: -25°C to +60°C
- Storage Conditions: -25°C to +80°C
- Maximum Altitude: 5000 meters
- Protection Class: IP00
- Frequency Range: 50-60Hz
Power Efficiency Data
- Typical Loss: 270W during operation
- Minimum Load: 8% motor current
- Continuous Rating: 115% capacity
- Horsepower: 300hp at 208V
- Response: Instant fault display
Important Product Note
- Status: Phased-out product
- Recommended Successor: 3RW5556-6HA14
- Warranty: 12 months coverage
- Shipping: FedEx, UPS, DHL available
Technical Support Access
- Email Contact: sales@powergearx.com
- WhatsApp Support: +86 18030005825
- Expert Advice: Available daily
Professional Application Guidance
What industries use this high-capacity starter?
- Perfect for mining equipment, large compressors, and industrial pumps. Ideal for heavy manufacturing applications.
How does temperature affect performance?
- Current capacity decreases with higher temperatures. At 60°C, standard current reduces to 760A from 970A.
What replacement model is recommended?
- The preferred successor is Siemens 3RW5556-6HA14. It offers improved features and modern technology.
What maintenance ensures reliability?
- Regularly inspect busbar connections for corrosion. Monitor cooling efficiency in high-temperature environments.
How to handle phase-out situations?
- Consider upgrading to the 3RW5 series for better features. Plan replacements during scheduled maintenance periods.
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