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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1046-1BB40 |
| Alternative Part Number | 3RT10461BB40 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Number of Main Contacts | 3 Normally Open (NO) |
| Rated Operational Current | AC-1: 120 A at 400 V, AC-3: 95 A at 400 V |
| Rated Operational Power | AC-3: 45 kW at 400 V |
| Control Circuit Voltage | 24 V dc |
| Contactor Size | Size S3 |
| Protection Class | IP20 (front side) |
| Ambient Temperature Range | -25 … +60 °C |
| Mechanical Life | 10,000,000 operations |
| Connection Type | Screw connection |
| Installation Altitude | Up to 2000 m above sea level |
| Pollution Degree | 3 |
| Width | 70 mm |
| Height | 146 mm |
| Depth | 152 mm |
| Commodity Code | 85364900 |
The Siemens 3RT1046-1BB40 is a robust power contactor designed to handle high current applications with ease. This contactor is part of the SIRIUS product family, renowned for its reliability and performance in industrial environments. With a 3-pole configuration and a rated operational current of AC-1 120 A at 400 V, it is capable of managing AC-3 loads up to 45 kW/400 V efficiently. The unit operates with a control supply voltage of 24 V dc, ensuring compatibility with a wide range of control circuits.
Constructed with a screw connection, the 3RT1046-1BB40 offers a secure and durable connection, suitable for consistent operation. The contactor is designed with user safety in mind, featuring an IP20 protection class on the front, which helps to prevent accidental contact with live components. Its compact size, classified as size S3, allows for convenient integration into various control systems without occupying excessive space.
The mechanical operating life of this contactor is impressive, with up to 10 million operating cycles, indicating a long-lasting and dependable performance. This makes it an ideal choice for applications that demand high switching frequencies and endurance. The contactor's straightforward design ensures ease of installation and maintenance, making it a practical choice for a variety of industrial applications such as motor control, switching heating loads, and managing lighting systems.
The Siemens 3RT1046-1BB40 is a testament to Siemens' commitment to quality, offering a combination of performance, durability, and reliability for demanding industrial applications.
Commonly Asked Questions
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Frequently Asked Questions
What are the main characteristics of this power contactor?
This power contactor is a 3-pole device with a contactor size of S3, suitable for AC-3 applications up to 45 kW at 400 V. It has a rated operating current of 95 A at AC-3 and 120 A at AC-1, with a control voltage of 24 V DC.
Can this contactor be used in safety-related applications?
The contactor is designed for standard industrial use. For safety-related applications, it is important to refer to the specific requirements and certifications necessary for such applications to determine suitability.
What is the insulation voltage rating for this contactor?
The insulation voltage rating for this contactor is 1,000 V, which is the rated value for ensuring safe operation within its specified limits.
What is the mechanical service life of this contactor?
The mechanical service life of the contactor is typically 10 million switching cycles, which indicates its durability and longevity in operational use.
What type of terminal connection does this contactor have?
This contactor is equipped with screw terminals for both the main and auxiliary circuits, providing a secure and reliable connection for wiring.
What is the operating temperature range for this contactor?
The operating temperature range for this contactor is from -25°C to +60°C, allowing it to function effectively in a wide range of environmental conditions.
How many auxiliary contacts does this contactor have?
This model of the contactor does not come with built-in auxiliary contacts. However, auxiliary contact blocks can be added as required for specific applications.
What is the protection class of this contactor?
The protection class for the front of this contactor is IP20, which provides protection against solid objects larger than 12.5 mm but not against liquids.
Can this contactor be used for both AC and DC applications?
This contactor is primarily designed for AC applications, but it has a control voltage of 24 V DC. For DC power switching, it is important to check the specific DC ratings and suitability.
What is the surge voltage resistance of this contactor?
The surge voltage resistance of this contactor is rated at 6 kV, which indicates its ability to withstand transient voltage spikes without damage.
