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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1026-1BB44 |
| Alternative Part Number | 3RT10261BB44 |
| Manufacturer | Siemens |
| Category | General Automation |
| Poles | 3 Pole |
| Rated Operational Current (AC-3) | 25 A at 400 V ac |
| Control Voltage | DC 24 V |
| Auxiliary Contacts | 2 NO + 2 NC |
| Size | S0 |
| Connection Type | Screw Connection |
| Mechanical Service Life | 10 million switching cycles for contactor, 5 million with electronics-compatible auxiliary block |
| Installation Altitude | Up to 2000 m above sea level |
| Ambient Operating Temperature | -25 to +60 °C |
| Degree of Pollution | 3 |
| Protection Class IP | IP20 for front and terminals |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail |
| Dimensions (H x W x D) | 85 mm x 45 mm x 150 mm |
| Conductor Cross-section | Main contacts: max. 2x 10 mm², Auxiliary contacts: max. 2x (0.75 ... 4 mm²) |
| Approvals | General Product Approval, Declaration of Conformity, and others |
| Commodity Code | 85364900 |
The Siemens 3RT1026-1BB44 is a robust power contactor designed to handle a variety of applications within the realm of industrial automation. This three-pole contactor is engineered to manage AC-3 loads up to 25 A and motor control tasks for motors with a power rating of 11 kW at 400 V AC, making it a versatile choice for a wide range of industrial settings.
Crafted with a size S0 footprint, it offers a compact solution that can be easily integrated into existing systems without requiring extensive space. The contactor is equipped with screw terminals, ensuring a secure and reliable connection for both the main circuit and auxiliary contacts.
The device features an impressive mechanical service life, capable of up to 10 million switching cycles, which speaks to its durability and the reduced need for maintenance. It also includes 2 normally open (NO) and 2 normally closed (NC) contacts, providing flexibility in control circuit design.
With an operational voltage of 24 V DC for the control circuit, the Siemens 3RT1026-1BB44 ensures responsive and efficient performance. It is designed to be mounted either by screws or snapped onto a 35 mm standard mounting rail according to DIN EN 50022, allowing for straightforward installation.
The contactor's construction adheres to a pollution degree of 3 and offers a protection class of IP20 at the front, ensuring it is safeguarded against touch and foreign objects while operating in industrial environments.
This Siemens power contactor is a reliable and efficient solution for those seeking to optimise their automation systems with a component that offers both performance and longevity.
Commonly Asked Questions
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Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Read more...Is Marvo a credible parts supplier?
Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.
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Frequently Asked Questions
What type of contactor is this Siemens product?
This Siemens product is a power contactor designed for switching an electrical power circuit, similar to a relay except with higher current ratings. It is suitable for use in controlling motors and other electrical loads.
Can you describe the contact configuration of this contactor?
The contactor features a 3-pole configuration with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility for various control circuits.
What is the rated operational current for this contactor in AC-3 usage?
In AC-3 usage, the rated operational current for the contactor is 25 A at 400 V ac.
What is the coil voltage for this contactor?
The coil voltage for this contactor is 24 V dc, which is the control voltage for the activation of the contactor.
What is the mechanical service life of this contactor?
The mechanical service life of the contactor is typically 10 million operating cycles, indicating its durability and reliability over time.
What is the size classification of this contactor?
This contactor is classified as size S0, which is a standard size classification within the Siemens contactor range, indicating its physical dimensions.
What is the maximum installation altitude for this contactor?
The maximum installation altitude for the contactor is 2,000 metres above sea level, beyond which its operational reliability could be affected.
What are the ambient operating temperature limits for this contactor?
The ambient operating temperature range for this contactor is from -25 to +60 degrees Celsius, ensuring operation in a wide range of environmental conditions.
What is the degree of protection provided by the enclosure of this contactor?
The enclosure of this contactor provides a protection class of IP20 on the front, which protects against solid objects larger than 12.5 mm but not against water.
What applications are suitable for this type of contactor?
This type of contactor is suitable for a variety of applications including motor control, heating, lighting, and capacitor switching, among others in industrial environments.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
