Industrial Powerhouse: Siemens 3RW4453 Heavy-Duty Soft Starter

Meet the Siemens 3RW4453-6BC44 - built for extreme industrial applications. This soft starter handles massive motors with precision control and advanced protection features.

Key Benefits

• Extreme Power - Controls motors up to 560kW
• Smart Protection - Prevents motor damage and downtime
• Energy Saving - Reduces power consumption
• Easy Setup - Flexible mounting options

Technical Details

• Brand: Siemens
• Model: 3RW4453-6BC44
• Current Rating: 551A standard, 954A inside-delta
• Power Capacity: 315kW to 560kW
• Voltage: 200-460V AC, 50/60Hz
• Control Power: 230V AC
• Size: 510×640×290mm (W×H×D)
• Weight: 67kg
• Cable Size: 50-240mm² or 2/0-500 kcmil
• Heat Loss: 159W typical

Installation Notes

Mount in any position. Keep clear space around unit. Use proper cable sizes. Works at high altitudes up to 5000 meters.

Protection & Warranty

Comes with 12-month full warranty. Includes overload protection and thermal monitoring.

Fast Shipping

Available for quick delivery via FedEx, UPS, or DHL.

Expert Questions Answered

What size motors can the 3RW4453 starter handle?

It controls motors from 315kW to 560kW (420-750 HP). Perfect for large industrial applications.

How does the inside-delta connection work?

This wiring method allows control of larger motors using smaller components, saving space and cost.

What safety features are included?

Multiple protections: motor overload, current limit, thermal monitoring, and fault display.

Can this starter work in hot conditions?

Yes, it operates up to 60°C. For best performance above 40°C, follow the current derating guidelines.

What maintenance is required?

Minimal maintenance needed. Regular inspection and keeping the unit clean ensures long service life.

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