3RW4075-6BB44 Siemens SIRIUS 3RW4075 - Soft Starter
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Siemens SIRIUS 3RW4075-6BB44 Soft Starter
Note: This is a phased-out product. The recommended and preferred successor is the SIRIUS 3RW5075-6AB14. This unit is offered as a legacy spare part for existing systems.
Product Description
The Siemens SIRIUS 3RW4075-6BB44 is a high-performance soft starter from the S12 series. It is designed for smooth acceleration and deceleration of 3-phase motors. This starter reduces mechanical stress on equipment and limits inrush current. It features an integrated bypass contactor for energy-efficient operation and provides intrinsic device and motor overload protection. Perfect for controlling motors up to 200 kW / 400 V.
Key Features
- Integrated Bypass Contactor for reduced heat and power loss.
- Motor Overload Protection with adjustable current limits.
- Wide Operating Voltage: 200 - 460 V AC.
- Screw terminals for secure connections.
- Suitable for 50/60 Hz networks.
Technical Data
- Brand: Siemens
- Model: SIRIUS 3RW4075-6BB44
- Rated Operational Current: 356 A at 40°C
- Motor Power: 200 kW (400 V)
- Operating Voltage: 200 - 460 V AC
- Supply Voltage: 230 V AC
- Frequency: 50 - 60 Hz
- Operating Temperature: -25 °C to +60 °C
- Protection Class: IP00
Installation Guide
- Mounting: Screw fixing on a vertical surface.
- Spacing: Maintain 100mm above, 5mm at sides, and 75mm below.
- Main Circuit Connections: Busbar or large cable lugs (70-300 mm²).
- Control Circuit: Screw terminals for smaller cables.
- Max Wire Length: 300 meters.
Compatibility
This soft starter is designed for standard 3-phase AC motors. It is compatible with motor voltages from 200V to 460V. It is part of the Siemens SIRIUS S12 series. For new installations, we strongly recommend the successor model 3RW5075-6AB14.
Certification & Warranty
- Compliant with EMC standards.
- All products come with a 12-month warranty.
Shipping & Packaging
This item is shipped in secure industrial packaging. We offer fast worldwide shipping via FedEx, UPS, and DHL.
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