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Siemens
3RT2024-1DB44-3MA0
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT2024-1DB44-3MA0 |
| Alternative Part Number | 3RT20241DB443MA0 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contact Configuration | 3 Normally Open (3NO) |
| Rated Operational Current | 40 A at 690 V ac |
| Rated Control Supply Voltage | 24 V DC with inserted varistor |
| Size | S0 |
| Connection Type | Screw connection |
| Auxiliary Contacts | 2 Normally Open (2NO) + 2 Normally Closed (2NC), permanently mounted |
| Protection Class | IP20 on the front |
| Pollution Degree | 3 |
| Installation Altitude | Up to 2,000 metres above sea level |
| Ambient Temperature Range | -25 … +60 °C during operation |
| Shock Resistance | 10g / 5 ms, 7.5g / 10 ms at DC for rectangular impulse; 15g / 5 ms, 10g / 10 ms at DC for sine pulse |
| Insulation Voltage | Rated at 690 V |
| Impulse Voltage Resistance | Rated at 6 kV |
| Commodity Code | 853649 |
| Approvals | General Product Approval, EMC, KTL, Declaration of Conformity, Test Certificates |
The Siemens 3RT2024-1DB44-3MA0 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 size S0 footprint, it is compact enough to fit in standard control cabinets, yet powerful enough to manage AC-3 loads up to 5.5 kW at 400 V.
This model features three normally open (NO) contacts, making it suitable for many switching tasks. It is equipped with a 24 V DC control voltage and an integrated varistor, which provides protection against voltage spikes, enhancing the longevity of the device. The contactor is designed for screw connection, ensuring a secure and stable installation.
The 3RT2024-1DB44-3MA0 is engineered to perform in a wide range of ambient temperatures, from as low as -25°C up to +60°C, making it versatile for use in different climatic conditions. It also boasts an impressive mechanical service life, capable of up to 10 million switching cycles, which speaks to its durability and the quality of engineering that Siemens is known for.
With an IP20 protection rating, the contactor is finger-safe, providing a degree of protection against solid objects and ensuring the safety of personnel during installation and maintenance. The device is also designed to be shock-resistant, withstanding the rigours of industrial operation.
This power contactor is an excellent choice for those seeking a reliable solution for controlling motors and loads efficiently in commercial and industrial applications. Its design and construction are aligned with Siemens' commitment to high-quality standards, ensuring that it delivers consistent performance and contributes to the smooth operation of your electrical systems.
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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, similar to a relay but with higher current ratings.
What are the contact configurations for this contactor?
The contactor comes with 3 normally open (NO) main contacts and has a current rating of 40 A with an operational voltage of up to 690 V ac.
Can this contactor be used for motor control applications?
Yes, it is suitable for motor control applications and can handle up to 5.5 kW at 400 V in AC-3 usage category.
What is the coil voltage for this contactor?
The coil operates at 24 V DC, and it includes an integrated varistor for surge suppression.
What is the size of this contactor?
This contactor is of size S0, making it compact and suitable for use in various industrial applications where space may be limited.
Is there any protection against electrical shock?
Yes, the contactor is designed with finger-safe terminals to provide protection against electrical shock.
What is the IP rating of this contactor?
The front of the contactor has an IP20 rating, indicating protection against solid objects larger than 12mm but not against water.
How can this contactor be mounted?
It can be mounted using screws or snapped onto a DIN rail, providing flexibility in installation.
What certifications does this contactor have?
It has general product approvals and complies with EMC standards, ensuring its reliability and safety in industrial environments.
What is the typical application for this contactor?
Typically, it is used in applications such as starting and stopping motors, controlling heating loads, or managing electrical lighting circuits.
Part conditions explained
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