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
3RW4028-1BB04
Siemens 3RW4028-1BB04 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
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2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
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All orders are subject to product availability. See our T&Cs.
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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 3RW4028-1BB04 is a SIRIUS soft starter designed for efficient motor control in standard applications. With a rated power of 18.5 kW at 400V and an operating current of 38A at 40°C, this soft starter ensures smooth and reliable motor operation. Compatible with AC 200-480V and AC/DC 24V power supplies, it features screw terminals for secure electrical connections. The 3RW4028-1BB04 offers integrated device protection, motor overload protection, and adjustable current limitation, ensuring the safety and longevity of your motor system. Its compact S0 size and versatile mounting options make it an ideal choice for various industrial applications.
| Specification | Description |
|---|---|
| Part Number | 3RW4028-1BB04 |
| Alternative Part Number | 3RW40281BB04 |
| Manufacturer | Siemens |
| Category | Soft Starts |
| Size | S0 |
| Rated Current | 38 A (at 40°C) |
| Rated Power | 18.5 kW (at 400 V, 40°C) |
| Yielded Mechanical Performance | 25 hp (at 460 V, 50°C) |
| Operating Frequency | 50 - 60 Hz |
| Operating Voltage | 200 - 480 V |
| Control Supply Voltage | 24 V AC/DC |
| Dimensions | 45 mm (Width) x 125 mm (Height) x 155 mm (Depth) |
| Mounting | Screw and snap-on mounting |
| Protection Class | IP20 |
| Ambient Temperature | -25°C to 60°C (operating), -40°C to 80°C (storage) |
| Altitude of Installation Site | Up to 5,000 m above sea level |
| Cable Length | Maximum 300 m |
| Electrical Connections | Screw-type terminals |
| Auxiliary Contacts | 2 NO, 1 change-over switch |
What is the power rating of this Siemens soft starter?
The Siemens 3RW4028-1BB04 soft starter has a power rating of 18.5 kW at 400V for three-phase AC motors.
What is the operating voltage range for this soft starter?
The operating voltage range for the 3RW4028-1BB04 soft starter is 200-480V AC with a standard circuit.
What is the control supply voltage for this soft starter?
The control supply voltage for the Siemens 3RW4028-1BB04 soft starter is 24V AC/DC.
What is the operating temperature range for this soft starter?
The operating temperature range for the 3RW4028-1BB04 soft starter is -25°C to 60°C.
What is the protection class of this soft starter?
The Siemens 3RW4028-1BB04 soft starter has a protection class of IP20.
Does this soft starter have an integrated bridging contact system?
Yes, the 3RW4028-1BB04 soft starter has an integrated bridging contact system.
Can this soft starter be used for motor overload protection?
Yes, the Siemens 3RW4028-1BB04 soft starter has a motor overload protection feature.
What is the adjustable rated current range for motor overload protection?
The adjustable rated current range for motor overload protection in the 3RW4028-1BB04 soft starter is 23A minimum.
What is the derating temperature for this soft starter?
The derating temperature for the Siemens 3RW4028-1BB04 soft starter is 40°C.
- Smooth starting and stopping of three-phase motors
- Reduction of mechanical stress on motors and equipment
- Energy-efficient motor control for pumps, fans, and compressors
- Conveyor belt systems and material handling applications
- HVAC systems and building automation
- Industrial machinery and production line equipment
- Water and wastewater treatment plants
- Food and beverage processing equipment
- Textile and paper industry machinery
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.
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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.
5 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
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