137L0821 Danfoss 11kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L0821 iC7-Automation frequency converter featuring 11 kW motor power, 24 A output current, Modbus TCP communication, integrated STO safety and three-phase 380-500 V AC operation for industrial automation applications.
Why Choose the Danfoss 137L0821 iC7-Automation Frequency Converter?
The Danfoss 137L0821 is a high-performance iC7-Automation frequency converter engineered for demanding industrial automation and motion control applications. Developed as part of the advanced Danfoss iC7-Automation drive platform, this variable frequency drive delivers precise motor control, enhanced connectivity and integrated functional safety for modern production environments.
Designed to support machine builders, system integrators and industrial manufacturers, the iC7-Automation platform combines flexibility, cybersecurity-focused architecture and scalable performance. Its compact footprint and configurable hardware options simplify integration into industrial control systems while maintaining high efficiency and operational reliability.
With a rated motor power of 11 kW, a 24 A output rating and operation from a three-phase 380-500 V AC supply, the Danfoss 137L0821 is ideally suited to conveyors, processing equipment, packaging machinery, material handling systems and advanced automation applications.
Key Advantages
Advanced industrial frequency converter for automation applications.
11 kW motor power rating for demanding machinery.
Three-phase 380-500 V AC operation.
Integrated Safe Torque Off (STO) functionality.
Built-in Modbus TCP communication support.
Ethernet connectivity for seamless integration.
Coated circuit boards for improved environmental protection.
High efficiency operation helps reduce energy consumption.
Key Features
Danfoss iC7-Automation series.
11 kW rated motor power.
24 A continuous output current.
380-500 V AC three-phase input supply.
Integrated brake chopper.
Modbus TCP communication interface.
Integrated Ethernet connectivity.
Safe Torque Off (STO) safety functionality.
Control Panel 2.8 OPX20 included.
Encoder/Resolver option support.
IP20 open type enclosure.
Panel-mounted industrial design.
Advanced Drive Technology for Industrial Automation
The Danfoss iC7-Automation platform is designed to provide accurate speed, torque and motion control for industrial motors. Advanced control algorithms deliver stable operation even in demanding automation environments, helping improve productivity, process consistency and equipment performance.
Integrated networking, functional safety and scalable I/O capabilities make the 137L0821 an ideal solution for modern smart manufacturing systems, machine building projects and industrial digitalisation initiatives.
Typical Applications
Industrial conveyors and material handling systems.
Packaging and processing machinery.
Manufacturing and production equipment.
Automated assembly lines.
Pumps, fans and ventilation systems.
Machine building and OEM automation projects.
Motion control and industrial process applications.
Technical Specifications
Power
11 kW
Current
24 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
Part Number
137L0821
Product type
Frequency converter / variable frequency drive
Rated motor power
11 kW (15 HP)
Continuous output current
24 A
Input voltage
380-500 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
0-590 Hz
Protection rating
IP20
EMC category
C2
Functional safety
Safe Torque Off (STO)
Dimensions (H × W × D)
approx. 399 × 130 × 288 mm
Net weight
approx. 11.14 kg
EMC Filter
Commercial
Frequently Asked Questions
What is the Danfoss 137L0821 used for?
The Danfoss 137L0821 is an industrial frequency converter designed to control the speed and torque of three-phase AC motors in automation and machinery applications.
What motor size can this drive control?
This model is rated for motors up to 11 kW (15 HP) under standard operating conditions.
What supply voltage does the drive require?
The drive operates from a three-phase 380-500 V AC power supply.
Does the drive include safety functionality?
Yes, the drive includes integrated Safe Torque Off (STO) functionality for enhanced machine safety.
Which communication protocols are supported?
This configuration includes Modbus TCP communication and Ethernet connectivity for integration with industrial automation systems.
Trusted for Modern Industrial Automation
Danfoss iC7-Automation frequency converters are trusted by machine builders, system integrators and industrial manufacturers worldwide for reliable motor control, advanced connectivity and efficient operation in demanding automation environments.
Power
11 kW
Current
24 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
Part Number
137L0821
Product type
Frequency converter / variable frequency drive
Rated motor power
11 kW (15 HP)
Continuous output current
24 A
Input voltage
380-500 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
0-590 Hz
Protection rating
IP20
EMC category
C2
Functional safety
Safe Torque Off (STO)
Dimensions (H × W × D)
approx. 399 × 130 × 288 mm
Net weight
approx. 11.14 kg
EMC Filter
Commercial
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...