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3RT2038-1KB44
Siemens 3RT2038-1KB44 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 3RT2038-1KB44 is a high-performance contactor relay designed for demanding industrial applications. This robust device is part of the SIRIUS series and is engineered to handle AC-3 operations with a rated current of 80 A and a power rating of 37 kW at 400 V. It features a 3-pole configuration and operates on a 24 V DC control voltage, making it suitable for integration with PLC outputs.
The 3RT2038-1KB44 contactor relay is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing versatile control options for various electrical circuits. The device includes a built-in varistor for surge protection, ensuring reliable performance and longevity in harsh environments.
Constructed with screw terminals, the Siemens 3RT2038-1KB44 allows for secure and straightforward installation. Its compact design, with dimensions of 114 mm in height, 55 mm in width, and 174 mm in depth, facilitates easy integration into control panels and systems. The contactor relay supports both screw and snap-on mounting onto standard 35 mm DIN rails, adhering to DIN EN 60715 standards.
This contactor relay is designed to withstand high operational demands, with a mechanical endurance of up to 10 million operating cycles. It also features a high surge voltage resistance of 6 kV for both the main and auxiliary circuits, ensuring robust protection against electrical transients.
Ideal for controlling three-phase AC motors, the Siemens 3RT2038-1KB44 offers reliable performance across a range of voltages, including 200/208 V, 220/230 V, 460/480 V, and 575/600 V. It is also compliant with various international standards, making it a versatile choice for global applications.
Overall, the Siemens 3RT2038-1KB44 contactor relay is a dependable and efficient solution for industrial control systems, providing excellent performance, durability, and ease of installation.
The 3RT2038-1KB44 contactor relay is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing versatile control options for various electrical circuits. The device includes a built-in varistor for surge protection, ensuring reliable performance and longevity in harsh environments.
Constructed with screw terminals, the Siemens 3RT2038-1KB44 allows for secure and straightforward installation. Its compact design, with dimensions of 114 mm in height, 55 mm in width, and 174 mm in depth, facilitates easy integration into control panels and systems. The contactor relay supports both screw and snap-on mounting onto standard 35 mm DIN rails, adhering to DIN EN 60715 standards.
This contactor relay is designed to withstand high operational demands, with a mechanical endurance of up to 10 million operating cycles. It also features a high surge voltage resistance of 6 kV for both the main and auxiliary circuits, ensuring robust protection against electrical transients.
Ideal for controlling three-phase AC motors, the Siemens 3RT2038-1KB44 offers reliable performance across a range of voltages, including 200/208 V, 220/230 V, 460/480 V, and 575/600 V. It is also compliant with various international standards, making it a versatile choice for global applications.
Overall, the Siemens 3RT2038-1KB44 contactor relay is a dependable and efficient solution for industrial control systems, providing excellent performance, durability, and ease of installation.
| Specification | Description |
|---|---|
| Part Number | 3RT2038-1KB44 |
| Manufacturer | Siemens |
| Product Brand Name | SIRIUS |
| Product Designation | Coupling relay |
| Product Type Designation | 3RT2 |
| Size of Contactor | S2 |
| Rated Operational Voltage | 24 V DC |
| Number of Poles | 3 |
| Auxiliary Contacts | 2 NO + 2 NC |
| Rated Operational Current (AC-3) | 80 A |
| Rated Power (AC-3, 400 V) | 37 kW |
| Surge Voltage Resistance | 6 kV |
| Insulation Voltage | 690 V |
| Shock Resistance | 6.1g / 5 ms, 3.7g / 10 ms |
| Mechanical Service Life | 10,000,000 operating cycles |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail (DIN EN 60715) |
| Protection Class (Front) | IP20 |
| Protection Class (Terminal) | IP00 |
| Operating Temperature Range | -25°C to +60°C |
| Storage Temperature Range | -55°C to +80°C |
| Relative Humidity | 10% to 95% at 55°C (IEC 60068-2-30) |
| Height | 114 mm |
| Width | 55 mm |
| Depth | 174 mm |
| Weight | Not specified |
| Conductor Cross-Section (Main Contacts) | 1 ... 50 mm² (single or multi-stranded) |
| Conductor Cross-Section (Auxiliary) | 0.5 ... 2.5 mm² (single or multi-stranded) |
| Control Supply Voltage Range | 0.8 to 1.2 * Us |
| Inrush Current Peak | 2 A at 24 V |
| Holding Power of Magnet Coil | 1 W |
| Closing Power of Magnet Coil | 21.5 W |
| Environmental Product Declaration (EPD) | Yes |
| Global Warming Potential | 107 kg CO2 eq |
| B10 Value | 1,000,000 (high demand rate) |
| Proportion of Dangerous Failures | 40% (low demand rate), 73% (high demand rate) |
| Failure Rate (FIT) | 100 FIT (low demand rate) |
| Mirror Contact | Yes (IEC 60947-4-1) |
| Positively Driven Operation | No (IEC 60947-5-1) |
| Proof Test Interval | 20 years (IEC 61508) |
| Touch Protection | Finger-safe when touched vertically from front (IEC 60529) |
What is the primary function of this Siemens part?
This Siemens part is a contactor relay designed for switching and controlling electric motors and other high-power loads.
What are the voltage ratings for this contactor relay?
The contactor relay operates at a maximum voltage of 690 V for AC-3 applications.
What is the rated operational current for this contactor relay?
The rated operational current is 80 A at 400 V for AC-3 applications.
What type of mounting does this contactor relay support?
This contactor relay supports screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715.
What are the dimensions of this contactor relay?
The dimensions are 114 mm in height, 55 mm in width, and 174 mm in depth.
What is the power rating for three-phase AC motors?
The power rating for three-phase AC motors is 37 kW at 400 V.
What type of terminals does this contactor relay use?
This contactor relay uses screw-type terminals for both main and auxiliary circuits.
What is the contact configuration of this contactor relay?
The contactor relay has 2 normally open (NO) and 2 normally closed (NC) contacts.
Is this contactor relay suitable for side-by-side mounting?
Yes, this contactor relay is suitable for side-by-side mounting.
What is the rated control supply voltage for this contactor relay?
The rated control supply voltage is 24 V DC.
What is the maximum permissible voltage for safe isolation between coil and main contacts?
The maximum permissible voltage for safe isolation is 400 V according to EN 60947-1.
What is the IP protection class of this contactor relay?
The IP protection class is IP20 on the front and IP00 at the terminals.
What is the shock resistance of this contactor relay?
The shock resistance is 6.1g for 5 ms and 3.7g for 10 ms at DC.
What is the closing and opening delay for this contactor relay?
The closing delay is 45 to 60 ms, and the opening delay is 35 to 55 ms at DC.
What is the auxiliary contact rating for AC-15 applications?
The auxiliary contact rating is 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V for AC-15 applications.
- Controlling and switching three-phase AC motors
- Industrial automation systems
- Conveyor systems
- HVAC systems
- Pump control panels
- Machine tools
- Packaging machinery
- Material handling equipment
- Process control systems
- Power distribution systems
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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Customer reviews
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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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6 months ago
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