3RW4456-6BC44 Siemens Soft Starter | 450kW Motor Control
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Siemens 3RW4456-6BC44 Soft Starter: Smooth Motor Control for Heavy-Duty Applications
Protect your motors and reduce mechanical stress with this powerful soft starter. The Siemens 3RW4456-6BC44 handles up to 780A at 400V, featuring integrated bypass and comprehensive motor protection. Ideal for controlling large pumps, fans, and industrial machinery.
Key Benefits
- High Capacity: Controls motors up to 450kW (800kW in inside-delta)
- Built-in Protection: Motor overload and thermal protection included
- Energy Efficient: Integrated bypass reduces power loss after start
- Flexible Configuration: Works in standard and inside-delta circuits
- Easy Monitoring: Clear display shows operational status and faults
Technical Specifications
- Product Code: 3RW4456-6BC44
- Rated Current: 780A at 40°C (400V standard)
- Motor Power: 450kW standard, 800kW inside-delta
- Voltage Range: 200-460V AC, 50/60Hz
- Control Voltage: 230V AC
- Power Loss: 214W typical at full load
- Dimensions: 510mm x 640mm x 290mm (WxHxD)
- Connection: Busbar main, screw auxiliary terminals
- Cable Size: 70-240mm² for main circuit
- Ambient Temp: Up to 60°C operation
Frequently Asked Questions
What is the advantage of using a soft starter?
This 3RW4456-6BC44 reduces starting current and mechanical stress, extending motor life and preventing network disturbances.
Can it handle different motor connection types?
Yes, it supports both standard star/delta and inside-delta configurations for maximum application flexibility.
What protection features are included?
It provides motor overload protection, thermal monitoring, and phase failure detection for complete motor safety.
Is external cooling required?
No, the unit is designed for natural convection cooling up to 60°C ambient temperature without additional fans.
What is the successor model for this unit?
The recommended upgrade is the Siemens 3RW5554-6HA14, which offers enhanced features and performance.
Shipping & Warranty
We ship worldwide via FedEx, UPS, and DHL. Your purchase includes 12-month operational warranty ensuring reliable motor control performance.
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Original Source: https://www.ubestplc.com/
Contact: sales@ubestplc.com Phone: +86 180 3000 5825