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3RU2126-4DB1
Siemens 3RU2126-4DB1 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RU2126-4DB1 is a robust and reliable overload relay designed to provide essential motor protection. This thermal overload relay is part of the SIRIUS range and is engineered for standalone installation. It is suitable for use with motors operating at currents between 20 to 25 A, making it ideal for various industrial applications. The device features a manual-automatic reset function and is equipped with screw terminals for both the main and auxiliary circuits, ensuring secure and straightforward connections. With a protection class of IP20, it offers a degree of protection against solid objects. The relay is designed to withstand harsh environmental conditions, with an operational temperature range from -40 to +70 degrees Celsius and a maximum installation altitude of 2,000 metres above sea level. Its compact size and integration capabilities make it a versatile choice for safeguarding motor operations in diverse settings.
| Specification | Description |
|---|---|
| Part Number | 3RU2126-4DB1 |
| Manufacturer | Siemens |
| Part Category | Overload Relay |
| Adjustable Current | 20 ... 25 A |
| Operating Voltage | Up to 690 V |
| Operating Frequency | 50 ... 60 Hz |
| Number of Poles | 3 |
| Auxiliary Contacts | 1 NC, 1 NO |
| Operating Temperature | -40 ... +70 °C |
| Storage Temperature | -55 ... +80 °C |
| Installation Altitude | Up to 2,000 m |
| Protection Type | IP20, Ex e |
| Shock Resistance | 8g / 11 ms |
| Terminal Type | Screw-type terminals for both main and auxiliary circuits |
| Conductor Cross-Section | Main: 1x (1 ... 2.5 mm²), 1x (2.5 ... 10 mm²); Auxiliary: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Tightening Torque | Main: 2 ... 2.5 N·m; Auxiliary: 0.8 ... 1.2 N·m |
| Display | Slide switch for switching status |
| Certification | ATEX DMT 98 ATEX G 001 |
| Description | The Siemens 3RU2126-4DB1 is a robust overload relay designed to protect electrical circuits from overload conditions. It features adjustable current settings and is suitable for a wide range of applications. |
What is the primary function of this overload relay?
The primary function of the Siemens 3RU2126-4DB1 overload relay is to provide motor protection by preventing overheating and potential damage due to overload conditions.
What is the current range for this overload relay?
The Siemens 3RU2126-4DB1 overload relay has an adjustable current range of 20 to 25 amperes.
What type of installation is suitable for this overload relay?
This overload relay is designed for stand-alone installation and is suitable for use with screw terminals in both the main and auxiliary circuits.
What is the protection class of this overload relay?
The Siemens 3RU2126-4DB1 overload relay has a protection class of IP20, providing protection against solid objects and limited protection against liquids.
What are the ambient temperature conditions for operating this relay?
The relay can operate in ambient temperatures ranging from -40 to +70 degrees Celsius.
What is the rated operational voltage for this overload relay?
The rated operational voltage for the Siemens 3RU2126-4DB1 overload relay is 690 volts.
How many poles does the main current circuit of this relay have?
The main current circuit of the Siemens 3RU2126-4DB1 overload relay has three poles.
What is the size classification of this overload relay?
This overload relay is classified as size S0, which is suitable for specific motor protection applications.
Does this overload relay have integrated auxiliary contacts?
Yes, the Siemens 3RU2126-4DB1 overload relay includes integrated auxiliary contacts with one normally closed (NC) and one normally open (NO) contact.
What is the rated power loss of this overload relay?
The typical power loss for the Siemens 3RU2126-4DB1 overload relay is approximately 6.2 watts.
- Protects motors from overload conditions by interrupting the circuit when excessive current is detected.
- Used in industrial automation systems to ensure the safe operation of machinery.
- Commonly integrated into motor control panels for enhanced motor protection.
- Suitable for use in environments with varying temperatures, providing reliable performance.
- Ideal for applications requiring manual or automatic reset options for motor protection.
- Employed in systems where precise current monitoring and protection are critical.
- Utilized in conjunction with contactors to form a complete motor starter solution.
- Applicable in sectors such as manufacturing, processing, and material handling for motor safety.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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