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Marvo Part ID: MV-AQAW

£674.52 (ex. VAT)


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Specification Description
Part Number 6SL3210-1KE21-7UF1
Alternative Part Number 6SL32101KE217UF1
Manufacturer Siemens
Category General Automation
Rated Current (LO) 21.5 A
Rated Current (HO) 18.2 A
Voltage Range 380 to 480 V ac
Efficiency 0.97 %
Dimensions 3.94 x 8.86 x 7.72 in
Weight 2.600 kg
Rated Power (LO) 7.5 kW
Rated Power (HO) 5.5 kW
Output Frequency (V/f Control) 0 to 550 Hz
Output Frequency (Vector Control) 0 to 240 Hz
Overload Capability (LO) 150 % base load current IL for 3 s, followed by 110 % IL for 57 s in a 300 s cycle time
Overload Capability (HO) 200 % base load current IH for 3 s, followed by 150 % IH for 57 s in a 300 s cycle time
Communication PROFINET, EtherNet/IP
Degree of Protection IP20 / UL open type
Cooling Method Air cooling using an integrated fan
Installation Altitude Up to 1000 m (3280.84 ft)
Ambient Temperature Range -10 to 40 °C (14 to 104 °F) for operation
Relative Humidity 95 % at 40 °C (104 °F), non-condensing
Compliance with Standards UL, cUL, CE, C-Tick (RCM)
Efficiency Class IE2 according to IEC61800-9-2*

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.


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Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.


Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.


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6SL3210-1KE21-7UF1 Product Description

The Siemens 6SL3210-1KE21-7UF1 is a high-performance converter power module that forms part of the renowned SINAMICS G120C series, designed to meet the rigorous demands of industrial automation and drive applications. This variable frequency drive (VFD) is engineered to provide precise and efficient speed control for a wide range of three-phase motors, making it an ideal solution for tasks requiring variable speed operations.

With a rated power of 7.5 kW and the capability to handle 150% overload for short bursts, this robust module is well-suited for applications that experience occasional peaks in demand. It operates on a supply voltage ranging from 380 to 480 V ac, accommodating the standard power supplies found in industrial environments across the UK and Europe.

The SINAMICS G120C series is characterised by its compact design, and the 6SL3210-1KE21-7UF1 is no exception, with dimensions of 196 x 100 x 225.4 mm (height x width x depth). This space-saving form factor allows for easy integration into existing systems without the need for extensive reconfiguration.

This module comes with an integrated I/O interface, including 6 digital inputs, 2 digital outputs, 1 analogue input, and 1 analogue output, providing flexibility for various control and feedback mechanisms. Additionally, it features a Safe Torque Off function and an integrated PROFINET-PN fieldbus, enhancing its connectivity and safety features.

The IP20/UL open type protection ensures that the module is protected against solid objects larger than 12mm, although it should be installed in a cabinet or with additional protection for operation in environments where dust or moisture may be present.

The 6SL3210-1KE21-7UF1 is unfiltered and boasts an efficiency of 0.97%, reflecting its ability to operate with minimal energy loss, which is essential for cost-effective and sustainable operation. Its air cooling system, facilitated by an integrated fan, ensures that the device maintains optimal operating temperatures even under high load conditions.

Overall, the Siemens 6SL3210-1KE21-7UF1 is a versatile and reliable component for industrial drive systems, offering advanced features and dependable performance for a variety of automation tasks.

Frequently Asked Questions

What series does this Converter Power Module belong to?

The Converter Power Module is part of the SINAMICS G120C series, which is known for its compact design and versatile functionality suitable for a wide range of drive applications.

What is the rated power of this module?

The rated power of this module is 7.5 kW, with the capability to handle 150% overload for 3 seconds, making it suitable for applications requiring a robust power output.

Can this module be integrated with a safety system?

Yes, the module comes with an integrated Safe Torque Off (STO) feature, which allows it to be easily integrated into safety systems for secure operations.

What type of cooling does the module use?

The module utilises air cooling with an integrated fan, ensuring that the device maintains an optimal operating temperature during use.

What is the efficiency rating of this module?

This module has an efficiency rating of 0.97, indicating high efficiency in energy conversion and reduced operational costs.

What are the input and output voltage specifications?

The input voltage specification is 380 to 480 V ac, and the output is designed for a 3-phase connection, suitable for a variety of industrial applications.

What communication interfaces does the module support?

The module supports PROFINET-PN, which is a standard for industrial networking in automation, allowing for easy integration into existing network infrastructures.

What is the ambient operating temperature range for this module?

The module can operate within an ambient temperature range of -10 to 40 °C (14 to 104 °F), making it suitable for a variety of industrial environments.

What is the size and weight of the module?

The module measures 196 x 100 x 225.4 mm (H x W x D) and weighs approximately 2.30 kg, making it a compact and manageable size for installation.

Does the module have any integrated I/O interfaces?

Yes, the module includes integrated I/O interfaces with 6 digital inputs, 2 digital outputs, 1 analog input, and 1 analog output, providing flexibility for various control and monitoring tasks.