Product details
3RW4454-6BC44 SIRIUS Soft Starter | Reliable Motor Control
The SIRIUS 3RW4454-6BC44 soft starter is built for high-performance motor control. It offers smooth starts, high durability, and compact size for industrial use. Designed for motors up to 630 kW, it ensures stable performance under demanding conditions.
- Voltage Range: 200–460V AC
- Rated Current: 615A (Standard), 1065A (Inside Delta)
- Motor Power: 355kW (Standard), 630kW (Inside Delta)
- Control Voltage: 230V AC
- Operating Temp: up to 60°C
- Protection: Intrinsic and Motor Overload
- Display Type: LED fault indication
- Dimensions: 510×640×290 mm
- Mounting: Screw fixing, rotatable ±90°
- Protection Class: IP00
- Warranty: 12 months from Powergear X Automation
- Shipping: FedEx, UPS, DHL worldwide delivery
Key Advantages
- Reduces inrush current for longer motor life.
- Integrated bridging system for stable start-up.
- Supports inside-delta wiring up to 630 kW.
- Reliable thermal resistor evaluation function.
- Compact body with high current capacity.
- Easy installation with screw or busbar connection.
- Tested for up to 5000m installation height.
Technical Highlights
- Frequency: 50–60 Hz ±10%
- Power Loss (typical): 186 W
- Continuous Current: 115% of Ie
- Minimum Load: 8% of IM
- Cable Length: up to 500m
- Auxiliary Contacts: 3 NO, 1 Changeover
- Compatible Cable Cross-section: 50–240 mm²
FAQ – Expert Insights
- Q1: How can I protect the soft starter from overheating?
- Use proper ventilation and maintain at least 100 mm spacing above the unit.
- Q2: Can 3RW4454-6BC44 work with delta motor wiring?
- Yes, it fully supports inside-delta circuits up to 630 kW.
- Q3: What if my supply voltage drops below 200V?
- Performance may decrease; ensure voltage stays within -15% of rated range.
- Q4: How often should I check thermal protection settings?
- Review settings after every maintenance or motor replacement.
- Q5: Can it be installed near other power electronics?
- Yes, but keep at least 5 mm side clearance for cooling airflow.
Contact & Support
For pricing and availability, contact us:
Email: sales@powergearx.com
WhatsApp: +86 18030005825
Trusted Partners
In cooperation with Ubest Automation Limited.
Original Source: https://www.powergearx.com/
Copyright © 2025 Powergear X Automation Limited. All rights reserved.
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