Product details
Siemens 3RW4443-6BC44 – Heavy Duty Motor Starter
The Siemens SIRIUS 3RW4443-6BC44 handles tough industrial applications. This powerful soft starter manages 203A standard and 352A inside-delta currents. It controls motors from 110kW to 200kW with smooth operation.
Powerful Performance Specifications
- Brand: Siemens SIRIUS
- Model: 3RW4443-6BC44
- Standard Current: 203A at 40°C
- Inside-Delta Current: 352A at 40°C
- Standard Power: 110kW at 400V
- Inside-Delta Power: 200kW at 400V
- Operating Voltage: 200-460V AC
- Control Voltage: 230V AC
Advanced Safety Features
- High insulation voltage: 690V
- Motor overload protection
- Thermistor motor protection
- Adjustable current limitation
- Intrinsic device protection
- External reset capability
Robust Construction Details
- Dimensions: 210×230×298mm
- Mounting: Screw fixing
- Position: ±90° rotatable
- Tilt: ±22.5° adjustable
- Clearance: 100mm top, 5mm sides
- Weight: Heavy-duty build
Electrical Connections
- Main circuit: Busbar connection
- Auxiliary circuit: Screw terminals
- Contacts: 3 NO + 1 CO
- Conductor size: 70-300mm²
- AWG range: 2/0 to 500 kcmil
- Max wire length: 500 meters
Environmental Ratings
- Operating temperature: -25°C to +60°C
- Storage temperature: -25°C to +80°C
- Altitude: 5000 meters maximum
- Protection class: IP00
- Pollution degree: 3
Efficiency Data
- Power loss: 89W typical
- Minimum load: 8% capacity
- Continuous current: 115% rating
- Frequency: 50-60Hz operation
- Efficiency: High-performance
Service & Support
- Warranty: 12 months
- Shipping: FedEx, UPS, DHL
- Delivery: Global coverage
- Support: Technical guidance
Contact Our Experts
- Email: sales@powergearx.com
- Phone: +86 18030005825
- Service: Professional advice
Technical Questions Answered
- What is the main advantage of 690V insulation?
- Higher insulation voltage provides extra safety margin. It protects against voltage spikes in industrial environments.
- How does the motor brake output function?
- The motor brake output allows controlled stopping. It prevents sudden halts that could damage machinery.
- Can this starter handle voltage fluctuations?
- Yes, it operates within 200-460V range. The system tolerates ±15% voltage variations safely.
- What maintenance ensures long service life?
- Keep cooling paths clear of dust. Check electrical connections every three months for tightness.
- Is special training needed for installation?
- Basic electrical knowledge is sufficient. Follow the wiring diagram provided for correct setup.
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