SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module Compact 400mm Width 800kW 1405A Liquid Cooled 400V

The SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module stands as a robust solution for demanding industrial drive applications, offering significant advantages in power density, efficiency, and cooling performance. This compact unit, measuring 400mm in width, delivers an impressive 800kW of power with a 1405A current rating, all while employing advanced liquid cooling for optimal thermal management. Its 400V operating voltage makes it suitable for a wide array of high-performance machinery. The SINAMICS S120 platform is renowned for its flexibility and intelligent control, positioning the 6SL3725-1TE41-4MA3 as a critical component in modern automation.

Product Specifications

| Parameter             | Value                             |

| :-------------------- | :-------------------------------- |

| Product Number        | 6SL3725-1TE41-4MA3                |

| Product Family        | SINAMICS S120                     |

| Module Type           | Single Motor Module               |

| Design                | Compact                           |

| Width                 | 400 mm                            |

| Rated Power           | 800 kW                            |

| Rated Current         | 1405 A                            |

| Cooling               | Liquid Cooled                     |

| Voltage               | 400 V                             |

| Control Type          | Vector Control, Servo Control     |

| Protection Class      | IP20                              |

| Ambient Temperature   | 0 °C to 45 °C (with derating)     |

| Communication Interfaces | PROFINET, PROFIBUS (optional) |

Core Features & Market Positioning

The SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module distinguishes itself through its exceptional power density, achieved by integrating an 800kW motor output within a highly compact 400mm frame. This space-saving design is a significant advantage in control cabinet installations where space is at a premium. The module's liquid cooling system is a key differentiator, enabling sustained high-performance operation and prolonged equipment lifespan by effectively dissipating heat, even under extreme load conditions. This advanced cooling technology allows for a higher continuous current rating (1405A) and minimizes thermal derating compared to air-cooled alternatives. Furthermore, its seamless integration within the broader SINAMICS S120 ecosystem underscores Siemens' commitment to providing scalable and interoperable drive solutions for sophisticated automation tasks, positioning it as a premium choice for industries prioritizing reliability and performance.

Key Application Scenarios

The high power output and advanced cooling of the SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module make it ideally suited for heavy-duty industrial applications. Its robust performance is critical in machine tools, particularly for high-torque spindle drives and axis control requiring precise and dynamic motion. In the printing and paper industries, it excels in driving large rollers and complex web handling systems where consistent speed and torque are paramount. The module's ability to handle substantial power loads also lends itself to demanding applications in metal processing, such as rolling mills and heavy presses, ensuring efficient and reliable operation. Furthermore, its liquid cooling capability is advantageous in environments with elevated ambient temperatures or where continuous operation at peak capacity is a necessity, such as in specialized manufacturing or energy sectors.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module into an existing automation system requires careful attention to the liquid cooling circuit and communication interfaces. For liquid cooling, it is imperative to utilize a closed-loop system with appropriate coolant flow rates and temperature monitoring to maintain optimal operating conditions. The module typically connects to a SIMOTICS motor via a suitable motor cable, with encoder feedback (e.g., Hiperface DSL) providing crucial positional data for advanced control loops. Communication with the controlling PLC, often a Siemens S7 series, is established through PROFINET or PROFIBUS, necessitating correct network configuration and parameterization within the TIA Portal software. Ensure proper grounding and shielding of all cables to prevent electromagnetic interference and ensure system integrity.

Operation and Risk Mitigation

Safe and efficient operation of the SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module hinges on adhering to established safety protocols and understanding potential fault conditions. Always ensure that the liquid cooling system is operational and within specified temperature limits before energizing the module; a failure in cooling can lead to rapid overheating and module shutdown or damage. Implement appropriate safety interlocks and emergency stop functionalities in the machine control system to enable rapid shutdown in hazardous situations. Familiarize yourself with the diagnostic displays and error codes provided by the SINAMICS S120 system; common fault codes relate to overcurrent, overvoltage, undervoltage, and thermal protection. Promptly address any warning or alarm indicators by consulting the technical documentation for specific troubleshooting steps, which may include checking motor connections, coolant flow, or control voltage supply.

Scalability & Long-Term Value

The SIEMENS 6SL3725-1TE41-4MA3 SINAMICS S120 Single Motor Module offers substantial scalability, fitting seamlessly into the broader SINAMICS S120 platform which supports modular expansion for multi-axis applications. Its compatibility with various SIMOTICS motors and a wide range of encoders ensures flexibility in system design and future upgrades. Integration with Siemens' IIoT and digital solutions, such as MindSphere, allows for advanced data analytics, predictive maintenance, and optimized operational performance, extending the long-term value of the investment. By adhering to Siemens' standardized communication protocols (PROFINET/PROFIBUS) and control architectures, the module ensures interoperability with other Siemens automation components, simplifying system upgrades and maintenance over the lifecycle of the equipment.

FAQs

1. What are the primary benefits of liquid cooling in the SIEMENS 6SL3725-1TE41-4MA3?

Liquid cooling enhances thermal dissipation, allowing for higher continuous power output. It ensures consistent performance under heavy loads and extreme conditions. This advanced cooling extends the operational lifespan of the drive module significantly.

2. How does the SINAMICS S120 architecture facilitate scalability?

The SINAMICS S120 platform is modular, allowing easy integration of multiple motor modules. This enables expansion for complex multi-axis applications. It supports various communication protocols for seamless PLC integration.

3. What are the typical industries that benefit from the 800kW power rating of this module?

Heavy industries like metal processing and machine tooling benefit greatly. Printing and paper industries also utilize its robust capabilities. Energy sector applications requiring high power drives are also a fit.

4. Can this module be integrated with non-Siemens PLCs?

Yes, through standard industrial communication protocols like PROFINET or PROFIBUS. These open standards ensure compatibility with various PLC manufacturers. Careful network configuration is essential for successful integration.

5. What safety precautions are crucial when operating this liquid-cooled drive module?

Ensure the liquid cooling system is always functional and at the correct temperature. Implement robust emergency stop circuits and safety interlocks. Always follow proper lockout/tagout procedures during maintenance.

6. What role does encoder feedback play in the operation of the 6SL3725-1TE41-4MA3?

Encoder feedback provides precise positional and speed data to the drive. This is essential for advanced control modes like vector and servo control. It ensures accurate motion profiles and closed-loop performance.

7. How does the compact 400mm width offer an advantage?

The compact design saves valuable space within control cabinets. This is critical in installations where space is limited and costly. It allows for denser machine configurations.

8. What is the significance of the 1405A current rating?

The high current rating indicates the module's capability to handle substantial motor loads. It allows for driving larger and more powerful motors. This ensures sufficient torque for demanding applications.

9. How can this drive module contribute to predictive maintenance strategies?

By integrating with IIoT platforms, it sends operational data for analysis. This data can identify potential issues before failure occurs. It enables proactive maintenance scheduling.

10. What are common troubleshooting steps for thermal-related faults in this module?

First, verify the liquid cooling system is operating correctly and coolant levels are adequate. Check for any obstructions to coolant flow. Ensure the ambient temperature is within operational limits.