Siemens 3RW4454-6BC44 Soft Starter | Smooth Motor Control Up to 630KW

• Gentle motor starting and stopping for heavy-duty applications
• High power handling: 615A standard, 1065A inside-delta configuration
• Built-in motor protection and thermal monitoring
• Flexible control options with multiple auxiliary contacts
• Robust design for demanding industrial environments

Product Overview

The Siemens 3RW4454-6BC44 soft starter protects your motors and machinery. This high-performance unit controls motor acceleration and deceleration smoothly. It handles large motors up to 630KW with ease. The integrated protection features prevent damage and extend equipment life.

Technical Specifications

• Product Code: 3RW4454-6BC44
• Starter Type: SIRIUS Soft Starter
• Rated Current: 615A @ 40°C (Standard)
• Max Power: 355KW Standard, 630KW Inside-Delta
• Voltage Range: 200-460V AC
• Control Voltage: 230V AC
• Frequency: 50-60 Hz
• Motor Protection: Integrated overload protection
• Auxiliary Contacts: 3 NO + 1 Changeover
• Connection Type: Busbar (main), Screw terminals (control)
• Cable Size: Up to 240mm² main conductors
• Dimensions: 510 x 640 x 290 mm
• Weight: Approximately 45 kg
• Protection Class: IP00
• Ambient Temperature: Up to 60°C operating

Installation Guide

1. Ensure proper mounting with required clearances
2. Connect main power via busbar connections
3. Wire control circuit to 230V AC supply
4. Configure motor parameters and protection settings
5. Test starting and stopping sequences

Frequently Asked Questions

What motors is this soft starter designed for?

It's ideal for large three-phase squirrel cage motors in industrial pumps, fans, and compressors.

How does the inside-delta configuration work?

This wiring method allows handling higher currents (1065A) for very large motor applications.

What protection features are included?

Motor overload protection, thermal monitoring, and current limitation are all built-in.

Can this starter operate in high ambient temperatures?

Yes, it works up to 60°C with proper derating according to temperature guidelines.

What maintenance does this unit require?

Regular inspection of connections and periodic testing of protection functions is recommended.

Order & Support

• Package Includes: 1 x Siemens 3RW4454-6BC44 Soft Starter
• Warranty Coverage: 12-month reliability guarantee
• Shipping Options: FedEx, UPS, DHL express service

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