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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT2024-2BB40 |
| Alternative Part Number | 3RT20242BB40 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contact Configuration | 3NO (3 Normally Open) |
| Rated Operational Current | AC-3 12 A |
| Operational Power at 400 V | 5.5 kW |
| Maximum Operating Voltage | 690 V ac |
| Contactor Size | S0 |
| Control Supply Voltage | AC (Supply); DC (Control) |
| Operating Frequency | 1000 MHz |
| Protection Class | IP20 |
| Number of Auxiliary Contacts | 1NO+1NC (1 Normally Open + 1 Normally Closed) |
| Terminal Type | Spring-loaded terminal |
| Pollution Degree | 3 |
| Installation Altitude | Up to 2000 metres above sea level |
| Ambient Operating Temperature | -25 to +60 °C |
| Shock Resistance | At DC 10g / 5 ms, 7.5g / 10 ms |
| Insulation Voltage | Rated at 690 V |
| Mechanical Service Life | Typical 10 million switching cycles |
| Commodity Code | 853649 |
The Siemens 3RT2024-2BB40 is a robust power contactor designed to handle a wide range of switching tasks in industrial environments. This contactor is part of the SIRIUS product family and is engineered to facilitate efficient and reliable operation in various applications. With a size S0 footprint, it offers a compact solution for controlling motors and loads.
The 3RT2024-2BB40 features three normally open (NO) contacts and is rated for AC-3 usage at 12 A, with an operational power capacity of 5.5 kW at 400 V. It is suitable for use in circuits with an insulation voltage of up to 690 V and has an impulse voltage resistance of 6 kV, ensuring durability and resilience in challenging electrical conditions.
This contactor is equipped with spring-loaded terminals for both the main and auxiliary circuits, simplifying installation and maintenance. The device is designed with a protection class of IP20, providing a degree of protection against solid objects and ensuring safety during operation.
The control circuit operates with a DC voltage, with a rated control supply voltage of 24 V. The contactor's closing and opening delays are optimised for DC operation, contributing to its reliable performance.
With a mechanical service life of up to 10 million switching cycles, the Siemens 3RT2024-2BB40 is built to last, making it a valuable component for a wide array of industrial applications where consistent performance and longevity are critical.
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Frequently Asked Questions
What type of contactor is this?
This is a power contactor designed for switching an electrical power circuit, specifically an AC-3, 5.5 kW / 400 V contactor with a DC 24V control circuit voltage.
Can this contactor be used for communication functions?
No, this contactor does not have a function module for communication.
What is the size of this contactor?
The contactor is of size S0, which is a standard size for Siemens contactors in this range.
What is the rated insulation voltage of this contactor?
The rated insulation voltage for this contactor is 690 V.
What is the protection class of the contactor?
The protection class on the front of the contactor is IP20, indicating a certain level of protection against solid objects.
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.
Does this contactor have auxiliary switches?
Yes, this contactor is equipped with auxiliary switches.
What is the maximum operating altitude for this contactor?
The maximum operating altitude for this contactor is 2,000 meters above sea level.
What are the shock resistance specifications for this contactor?
The contactor has a shock resistance of 10g / 5 ms and 7.5g / 10 ms for DC at rectangular impulse, and 15g / 5 ms and 10g / 10 ms for DC at sine pulse.
What is the mechanical service life of the contactor?
The mechanical service life of the contactor is typically 10 million switching cycles.
Can this contactor be used at different voltages?
Yes, the contactor can operate at different voltages, with a maximum operating voltage of 690 V at AC-3.
