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Siemens
3RW4055-6BB44
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Check similar products or call us on +44 20 4570 3439 for assistance
This part is currently sold out
Please check back soon.
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RW4055-6BB44 |
| Manufacturer | Siemens |
| Product Name | SIRIUS Soft Starter |
| Size | S6 |
| Width | 120 mm |
| Height | 198 mm |
| Depth | 250 mm |
| Mounting Type | Screw Mounting |
| Installation Position | Vertical with +/-90° rotation and +/- 22.5° tilt (with additional fan) |
| Operating Frequency | 50 - 60 Hz |
| Operating Voltage | 200 - 460 V AC |
| Control Voltage | 230 V AC |
| Rated Current at 40°C | 134 A |
| Rated Current at 50°C | 117 A |
| Rated Current at 60°C | 100 A |
| Motor Power at 230 V, 40°C | 37,000 W |
| Motor Power at 400 V, 40°C | 75,000 W |
| Motor Power (hp) at 200/208 V | 30 hp |
| Auxiliary Contacts | 2 Normally Open (NO), 1 Changeover |
| Main Circuit Connection | Rail Connection |
| Auxiliary and Control Connection | Screw Connection |
| Cable Length (max) | 300 m |
| Poles (Main Circuit) | 3 |
| Altitude (max) | 5,000 m above sea level |
Introducing the Siemens 3RW4055-6BB44 SIRIUS Soft Starter, a reliable and efficient solution for smooth motor control in various industrial applications. This high-quality soft starter is designed to handle a wide range of motor sizes, with a rated current of 134 A at 40°C and a power capacity of 75 kW at 400 V.
The 3RW4055-6BB44 SIRIUS Soft Starter offers advanced features such as integrated bypass contact system, thyristor control, device self-protection, and adjustable current limiting. It also provides motor overload protection and supports external reset functionality. However, it does not include thermistor motor protection evaluation or delta connection capabilities.
With a compact design, the soft starter measures 120 mm in width, 198 mm in height, and 250 mm in depth. It can be easily installed with screw terminals and offers flexible mounting options, ensuring seamless integration into your existing system. The soft starter is compatible with a wide voltage range of 200-460 V AC and a control voltage of 230 V AC.
Upgrade your motor control system with the Siemens 3RW4055-6BB44 SIRIUS Soft Starter and experience enhanced performance, reduced energy consumption, and extended motor life. Trust in Siemens' expertise and quality for your industrial automation needs.
Commonly Asked Questions
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Frequently Asked Questions
What is the purpose of the Siemens SIRIUS soft starter?
The Siemens SIRIUS soft starter is designed to control the starting and stopping of three-phase asynchronous motors, providing smooth and controlled acceleration and deceleration. This helps reduce mechanical stress on the motor and connected equipment, extending their service life and reducing maintenance costs.
What are the key features of this soft starter?
The 3RW4055-6BB44 soft starter offers integrated bypass contact system, thyristors, device protection, motor overload protection, adjustable current limiting, and external reset functionality. It is suitable for standard applications and has a rated current of 134 A at 40°C.
What is the power range supported by this soft starter?
The 3RW4055-6BB44 soft starter supports a mechanical power range of 37 kW at 230 V and 75 kW at 400 V for three-phase motors at 40°C.
What is the operating voltage range for this soft starter?
The operating voltage range for the 3RW4055-6BB44 soft starter is 200-460 V AC.
What are the dimensions of this soft starter?
The dimensions of the 3RW4055-6BB44 soft starter are 120 mm in width, 198 mm in height, and 250 mm in depth.
What type of electrical connections does this soft starter have?
The 3RW4055-6BB44 soft starter features a rail connection for the main circuit and screw connections for auxiliary and control circuits.
Can this soft starter be used with motors that have a braking function?
No, the 3RW4055-6BB44 soft starter does not have an output for a motor braking function.
Part conditions explained
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