steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
3RW4055-6BB44
Siemens 3RW4055-6BB44 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RW4055-6BB44 is a SIRIUS soft starter designed for efficient and reliable motor control in various industrial applications. With a current rating of 134A at 40°C, this soft starter is capable of handling motors with a power output of up to 75 kW at 400V. The device features an integrated bypass contact system and thyristors for smooth motor operation and protection.
The 3RW4055-6BB44 offers adjustable current limiting, overload protection for the motor, and external reset functionality. It is suitable for use with three-phase motors and operates within a frequency range of 50-60 Hz. The soft starter is designed for easy installation with screw mounting and can be used in a wide range of environments, with an operating temperature range of -10°C to 60°C.
The control voltage for this soft starter is 230V AC, and it features a user-friendly interface with a red error signal display. With its robust construction and advanced features, the Siemens 3RW4055-6BB44 soft starter is an ideal choice for efficient motor control in various industrial settings.
The 3RW4055-6BB44 offers adjustable current limiting, overload protection for the motor, and external reset functionality. It is suitable for use with three-phase motors and operates within a frequency range of 50-60 Hz. The soft starter is designed for easy installation with screw mounting and can be used in a wide range of environments, with an operating temperature range of -10°C to 60°C.
The control voltage for this soft starter is 230V AC, and it features a user-friendly interface with a red error signal display. With its robust construction and advanced features, the Siemens 3RW4055-6BB44 soft starter is an ideal choice for efficient motor control in various industrial settings.
| Specification | Description |
|---|---|
| Part Number | 3RW4055-6BB44 |
| Alternative Part Number | 3RW40556BB44 |
| Manufacturer | Siemens |
| Product Name | SIRIUS Soft Starter |
| Size | S6 |
| Width | 120 mm |
| Height | 198 mm |
| Depth | 250 mm |
| Mounting Type | Screw Mounting |
| Installation Height | Up to 5,000 m above sea level |
| Maximum Cable Length | 300 m |
| Main Circuit Poles | 3 |
| Rated Current at 40°C | 134 A |
| Rated Power at 400 V | 75 kW |
| Operating Frequency | 50 - 60 Hz |
| Operating Voltage Range | 200 - 460 V AC |
| Control Voltage | 230 V AC |
| Auxiliary Contacts | 2 Normally Open, 1 Changeover |
| Integrated Bypass Contact System | Yes |
| Overload Protection | Yes |
| External Reset | Yes |
| Adjustable Current Limiting | Yes |
| Delta Connection Compatibility | No |
| Motor Brake Output | No |
What is the main function of this Siemens soft starter?
The Siemens 3RW4055-6BB44 soft starter is designed to smoothly start and stop three-phase induction motors, reducing mechanical stress on the motor and extending its lifespan.
What is the rated operating current and power for this soft starter?
The rated operating current for the Siemens 3RW4055-6BB44 soft starter is 134 A at 40 °C, and it is suitable for motors with a power rating of 75 kW at 400 V.
What are the dimensions of this soft starter?
The Siemens 3RW4055-6BB44 soft starter has a width of 120 mm, a height of 198 mm, and a depth of 250 mm.
What type of electrical connections does this soft starter have?
The Siemens 3RW4055-6BB44 soft starter features a rail connection for the main circuit and screw connections for auxiliary and control circuits.
What is the maximum cable length supported by this soft starter?
The Siemens 3RW4055-6BB44 soft starter supports a maximum cable length of 300 meters.
Does this soft starter have built-in motor overload protection?
Yes, the Siemens 3RW4055-6BB44 soft starter has built-in motor overload protection to ensure safe operation.
What is the maximum installation altitude for this soft starter?
The Siemens 3RW4055-6BB44 soft starter can be installed at altitudes up to 5,000 meters above sea level.
- Motor control in industrial automation systems
- Pump and fan control in HVAC systems
- Conveyor belt systems in manufacturing plants
- Soft starting and stopping of motors in heavy machinery
- Control of compressors in refrigeration systems
- Elevator and escalator motor control
- Centrifuge and mixer control in chemical processing plants
- Water and wastewater treatment plant motor control
- Crane and hoist motor control in material handling applications
- Control of motors in renewable energy systems, such as wind turbines and solar panels
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Delivery
- Logistic partners UPS, FedEx and DHL
- International delivery available
- Premium nine hour delivery service available to anywhere in Europe
- Same day dispatch from group stock
Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
Returns
No hassle returns policy
Dedicated customer support team
Payment
Trade CreditWe understand that credit is a necessary part of business and offer credit agreements on request, subject to status.
Payment optionsWe accept Bank transfers and the following methods of payment:
All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.
Services
Sourcing your part
Global supplier of quality automation and control components
Service Exchange
Dispose of your old unit by exchanging it for a working part.
Repair
A comprehensive repair service for faulty equipment.
Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
5 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
6 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
Be a Factory Hero.
Get parts fast.
You don’t need tights and a cape to be a hero.
Get parts fast and feel like a legend, just like Jeff.