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
3RT2025-1BB44
Siemens 3RT2025-1BB44 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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2. Dedicated Account Manager
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3. Your quote
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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 3RT2025-1BB44 is a robust power contactor designed to handle a variety of applications within industrial environments. This contactor is engineered to control motors and loads efficiently, with a rated operational current of 40 A and an AC-3 power rating of 7.5 kW at 400 V. It features a three-pole design and is equipped with 24 V DC coil voltage, making it suitable for DC control systems.
The unit comes with integrated auxiliary contacts, offering 2 normally open (NO) and 2 normally closed (NC) contacts, which are useful for implementing control logic circuits. The screw terminal connection ensures a secure and reliable installation. With a size S0 footprint, it is compact enough to fit in standard control cabinets while providing ample power handling capabilities.
Designed with a focus on durability, the Siemens 3RT2025-1BB44 boasts a mechanical service life of millions of operating cycles, ensuring long-term reliability in demanding industrial settings. Its construction adheres to a pollution degree of 3 and offers a protection class of IP20 on the front, safeguarding the device from solid objects and facilitating its use in various environmental conditions.
This contactor is a preferred choice for professionals seeking a high-quality solution for motor control and switching applications, offering both performance and reliability in a compact package.
The unit comes with integrated auxiliary contacts, offering 2 normally open (NO) and 2 normally closed (NC) contacts, which are useful for implementing control logic circuits. The screw terminal connection ensures a secure and reliable installation. With a size S0 footprint, it is compact enough to fit in standard control cabinets while providing ample power handling capabilities.
Designed with a focus on durability, the Siemens 3RT2025-1BB44 boasts a mechanical service life of millions of operating cycles, ensuring long-term reliability in demanding industrial settings. Its construction adheres to a pollution degree of 3 and offers a protection class of IP20 on the front, safeguarding the device from solid objects and facilitating its use in various environmental conditions.
This contactor is a preferred choice for professionals seeking a high-quality solution for motor control and switching applications, offering both performance and reliability in a compact package.
| Specification | Description |
|---|---|
| Part Number | 3RT2025-1BB44 |
| Alternative Part Number | 3RT20251BB44 |
| Manufacturer | Siemens |
| Rated Operational Voltage | AC-3 400 V |
| Control Circuit Voltage | 24 V DC |
| Rated Operational Current | AC-3: 17 A |
| Power Rating | 7.5 kW |
| Number of Poles | 3 Poles |
| Auxiliary Contacts | 2 NO + 2 NC |
| Terminal Type | Screw Terminal |
| Size | S0 |
| Degree of Protection | IP20 on the front |
| Ambient Temperature Range | -25 … +60 °C |
| Mechanical Service Life | Typical 10,000,000 switching cycles |
| Insulation Voltage | Rated at 690 V |
| Installation Altitude | Maximum 2,000 m above sea level |
| Shock Resistance | At DC 10g / 5 ms, 7.5g / 10 ms |
| Impulse Voltage Resistance | Rated value 6 kV |
| Protection Against Electric Shock | Finger-safe |
| Degree of Pollution | 3 |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
What type of contactor is this?
This is a power contactor designed for switching an electrical power circuit, similar to a relay but with higher current ratings, and is used for controlling electric motors and lighting loads.
What are the voltage specifications for this contactor?
The contactor operates with a control supply voltage of 24 V DC and is suitable for switching motors up to 7.5 kW at 400 V in AC-3 applications.
How many poles does this contactor have?
The contactor is a 3-pole device, which means it can switch three phases simultaneously.
What are the auxiliary contact configurations?
This contactor comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts.
Can this contactor be used in safety-related applications?
While the contactor does have a mirror contact feature according to IEC 60947-4-1, it is not positively driven according to IEC 60947-5-1, which should be considered when planning for safety-related applications.
What is the size of this contactor?
The contactor is of size S0, which is a standard size classification for Siemens contactors.
What is the mechanical service life of this contactor?
The mechanical operating cycles as operating time of the contactor is typically around 10 million cycles.
What type of terminal does this contactor have?
This contactor is equipped with screw terminals for secure and reliable connections.
What is the rated operational current for this contactor?
The rated operational current for this contactor in AC-3 usage is 17 A.
What certifications does this contactor hold?
The contactor has general product approvals and conforms to standards, which may include but are not limited to EMC and KC certifications.
- Controlling motors in industrial applications
- Switching heating elements in HVAC systems
- Managing lighting circuits in commercial buildings
- Operating pumps in water treatment facilities
- Controlling compressors in refrigeration systems
- Activating electromagnetic valves in pneumatic systems
- Managing electrical circuits in manufacturing automation
- Switching capacitive loads in power factor correction units
- Operating fans in ventilation systems
- Controlling conveyor belts in material handling systems
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.
4 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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