SIEMENS 6SL3725-1TE41-4AS3 SINAMICS S120 Single Motor Module Special Duty 800kW 1330A Liquid Cooled 400V Stage

The SIEMENS 6SL3725-1TE41-4AS3 SINAMICS S120 Single Motor Module stands as a pinnacle of drive technology, engineered for demanding industrial applications. This liquid-cooled unit boasts an impressive 800kW power output and a robust 1330A current rating at 400V, delivering exceptional performance and efficiency. Its advanced design prioritizes high power density, thermal management, and precise control, making it an ideal choice for specialized, high-performance motor control in rigorous operational environments.

Product Specifications

| Parameter              | Value                 |

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

| Product Type           | SINAMICS S120         |

| Component              | Single Motor Module   |

| Special Duty Rating    | 800kW                 |

| Current Rating         | 1330A                 |

| Voltage Rating         | 400V                  |

| Cooling Method         | Liquid Cooled         |

| Manufacturer           | Siemens               |

| Part Number            | 6SL3725-1TE41-4AS3    |

Core Features & Market Positioning

The SINAMICS S120 platform, exemplified by the 6SL3725-1TE41-4AS3, is renowned for its innovative "Control Unit" and "Motor Module" architecture, allowing for highly flexible system configurations. This specific module's liquid-cooled design is a significant differentiator, enabling higher power density and superior thermal dissipation compared to air-cooled counterparts. This advanced cooling capability ensures consistent performance under extreme loads and prolonged operation, minimizing thermal derating and maximizing uptime in critical processes. Its positioning in the market is that of a premium, high-performance drive solution for applications where reliability, efficiency, and precise motor control are paramount.

Key Application Scenarios

This SIEMENS 6SL3725-1TE41-4AS3 is exceptionally suited for heavy-duty applications across various industries. It finds optimal deployment in process industries such as mining, metal processing, and material handling, where massive loads and continuous operation are standard. Furthermore, its high power and current capabilities make it ideal for large pump and fan drives, heavy-duty cranes, extruders, and large-scale compressors. The liquid-cooled design is particularly advantageous in enclosed or high-ambient temperature environments where effective heat removal is challenging.

Practical System Integration Guidance

Integrating the SINAMICS S120 module requires careful consideration of the drive system's overall architecture. This module is designed to connect to a SINAMICS S120 Control Unit, which manages the drive's intelligence and communication. For liquid cooling, a dedicated external cooling circuit is essential, typically involving a pump, heat exchanger, and appropriate coolant. Proper selection and sizing of power cables, ensuring compliance with the 1330A current rating, is critical for safe and efficient operation. Commissioning involves parameterization via SIMATIC engineering tools, such as TIA Portal, to configure motor data, control modes, and safety functions.

Operation and Risk Mitigation

Safe operation of the SIEMENS 6SL3725-1TE41-4AS3 necessitates strict adherence to installation and operating manuals. Key safety considerations include ensuring the integrity of the liquid cooling circuit to prevent overheating, proper grounding of the motor and drive, and the implementation of appropriate safety interlocks. Common operational risks include overcurrent faults due to improper motor selection or load conditions, and communication errors if the interface to the Control Unit is not correctly established. Regular monitoring of coolant temperature, flow rate, and system alarms is crucial for proactive risk mitigation.

Scalability & Long-Term Value

The SINAMICS S120 platform offers significant scalability, allowing for the expansion of drive systems with additional motor modules or the integration of different types of drives. The modular design facilitates upgrades and maintenance, extending the long-term value of the investment. Compatibility with Siemens' broader automation portfolio, including PLCs and HMI devices within the TIA Portal environment, ensures seamless integration into modern industrial control architectures and supports future digital transformation initiatives, such as IIoT connectivity and predictive maintenance strategies.

Frequently Asked Questions

What is the primary cooling method for the SIEMENS 6SL3725-1TE41-4AS3?

The SIEMENS 6SL3725-1TE41-4AS3 utilizes liquid cooling for superior thermal management. This method allows for higher power density and continuous operation under heavy loads. Effective coolant flow and temperature monitoring are essential for optimal performance and longevity.

What is the power and current rating of this SINAMICS S120 module?

This module is rated for a substantial 800kW of power and can handle a continuous current of 1330A. These high ratings make it suitable for very demanding industrial motor applications. Ensuring the connected motor and load do not exceed these parameters is critical for safe operation.

What type of applications is the 6SL3725-1TE41-4AS3 best suited for?

This module excels in heavy-duty industrial applications requiring high power and precise control, such as large pumps, fans, extruders, and material handling equipment. Its liquid-cooled design is particularly beneficial in harsh or confined operating environments.

What components are required for integrating this motor module into a system?

Integration requires a compatible SINAMICS S120 Control Unit for intelligence and communication. A dedicated liquid cooling circuit, including a pump and heat exchanger, is also mandatory. Proper power cabling and safety interlocks are also crucial for safe system setup.

How is the SIEMENS 6SL3725-1TE41-4AS3 commissioned?

Commissioning is typically performed using Siemens' TIA Portal software. This process involves configuring motor parameters, control modes, and essential safety functions. Accurate parameterization ensures the drive operates efficiently and safely with the connected motor.

What are the main advantages of liquid cooling in this module?

Liquid cooling offers superior heat dissipation compared to air cooling, enabling higher power output in a compact form factor. It also ensures more stable operating temperatures, reducing the risk of thermal overload and extending component life. This makes it ideal for sustained high-performance demands.

What is the voltage rating of the SIEMENS 6SL3725-1TE41-4AS3?

The module is designed to operate at a nominal voltage of 400V. This voltage class is common in many industrial power distribution systems. Users must ensure their power supply is compatible with this rating to prevent damage.

How does the modular design of SINAMICS S120 contribute to long-term value?

The modularity allows for flexible system expansion and easier component replacement or upgrades. This adaptability ensures the drive system can evolve with changing production needs, maximizing the return on investment over its lifecycle.

What safety considerations are paramount when operating this module?

Ensuring the liquid cooling system is fully functional is critical to prevent overheating. Proper grounding and electrical safety measures are also essential. Implementing safety interlocks that align with the machine's safety concept is also vital for operator protection.

Can this module be integrated with modern IIoT solutions?

Yes, the SINAMICS S120 platform, through its control units and communication capabilities, can be integrated into IIoT frameworks. This enables advanced data acquisition for diagnostics, predictive maintenance, and process optimization via platforms like MindSphere.