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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1024-1AC20 |
| Alternative Part Number | 3RT10241AC20 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contactor Size | S0 |
| Rated Operational Current | AC-3: 12 A, AC-1: 40 A at 400 V |
| Rated Control Supply Voltage | 24 V AC, 50/60 Hz |
| Number of Poles | 3 Poles |
| Rated Operational Power | AC-3: 5.5 kW / 400 V |
| Mechanical Service Life | 10,000,000 switching cycles for contactor typical |
| Degree of Pollution | 3 |
| Protection Class | IP20 on the front and terminals |
| Installation Altitude | Maximum 2,000 m above sea level |
| Ambient Operating Temperature | -25 ... +60 °C |
| Screw Connection | Yes |
| Commodity Code | 853649 |
The Siemens 3RT1024-1AC20 is a robust power contactor designed to handle a variety of applications within industrial environments. This contactor is part of the SIRIUS product family, renowned for its reliability and efficiency. With a control supply voltage of 24 V AC and a frequency range of 50/60 Hz, it is versatile for use in different power networks.
Engineered for high performance, the 3RT1024-1AC20 can manage operating currents up to 40 A at AC-1, 400 V, and is rated for AC-3 usage at 12 A, 400 V, making it suitable for controlling motors with a power rating of up to 5.5 kW at 400 V. Its three-pole design ensures that it can switch three-phase loads effectively, which is a common requirement in industrial settings.
The contactor boasts a mechanical service life of approximately 10 million switching cycles, indicating its durability and long-term operational stability. It also features a size S0 footprint, which makes it compact enough to fit in standard control cabinets without compromising on power.
For ease of installation, the 3RT1024-1AC20 comes with screw-type terminals, allowing for secure and reliable connections. It is designed for screw and snap-on mounting onto 35 mm standard mounting rails according to DIN EN 50022, which facilitates quick and easy integration into existing systems.
The device operates within an ambient temperature range of -25 to +60 °C and can be installed at altitudes up to 2000 metres above sea level without derating, ensuring consistent performance across a range of environmental conditions.
With its combination of performance, reliability, and ease of use, the Siemens 3RT1024-1AC20 power contactor is an excellent choice for those seeking a dependable solution for controlling motors and other electrical loads in industrial applications.
Commonly Asked Questions
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Frequently Asked Questions
What are the main characteristics of this Siemens power contactor?
This Siemens power contactor is a 3-pole device with a control voltage of 24 V AC at 50/60 Hz. It's designed for AC-3 applications up to 12 A and can handle motor power of up to 5.5 kW at 400 V. It features a size S0 frame and screw terminal connections.
Can this contactor be used in high-altitude installations?
Yes, the contactor can be installed at altitudes up to 2000 meters above sea level without derating.
What is the degree of protection provided by the contactor?
The contactor provides a protection class of IP20 on the front and IP20 at the terminal.
What is the expected mechanical service life of the contactor?
The mechanical service life of the contactor is typically around 10 million switching cycles, which can vary based on the presence of added electronics or auxiliary switch blocks.
What are the ambient temperature limits for operating this contactor?
The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius.
What is the power loss at AC-3 at 400 V for this contactor?
The power loss at AC-3 at 400 V for the rated value of the operating current per conductor is 0.5 W.
How many auxiliary contacts does this contactor have?
This model of the contactor does not come with built-in auxiliary contacts, but they can be added as required.
What is the operating current for this contactor at AC-3 at 400 V?
The operating current for the contactor at AC-3 at 400 V is rated at 12 A.
Is the contactor suitable for use in controlling motors?
Absolutely, this contactor is specifically designed for controlling motors and is suitable for AC-3 applications, which are typical for motor control.
What should be considered regarding the installation altitude for this contactor?
When installing the contactor, it's important to note that the maximum installation altitude is 2000 meters above sea level. Beyond this, the contactor's performance may be affected.
