137U2520 Danfoss 1.1kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U2520 iC7-Automation frequency converter, an air-cooled three-phase AC variable frequency drive with 3.0 A rated current, 1.1 kW power rating, 380–500 V AC input, IP20/Open Type protection, Modbus TCP communication and integrated Safe Torque Off functionality.
Why Choose the Danfoss 137U2520 iC7-Automation Frequency Converter?
The Danfoss 137U2520 is a compact and reliable iC7-Automation frequency converter designed for precise speed and torque control of three-phase AC motors in industrial automation applications. As part of the advanced Danfoss iC7-Automation drive series, it provides efficient motor control, flexible communication and dependable cabinet-mounted performance for modern machinery and control systems.
This air-cooled variable frequency drive is engineered for installation inside electrical cabinets and control panels. Its IP20/Open Type construction, compact FA02a frame and Ethernet-based communication support make it suitable for machine builders, panel builders and automation engineers requiring reliable low-power motor control with streamlined system integration.
With a three-phase 380–500 V AC supply, 3.0 A rated current and Frame FA02a construction, the Danfoss 137U2520 is ideal for compact industrial motor control applications where efficient performance, Modbus TCP connectivity and integrated safety are essential.
Key Advantages
Compact Danfoss iC7-Automation frequency converter for industrial motor control.
3.0 A rated output current for smaller machinery and automation applications.
1.1 kW typical motor power rating for low-power industrial motors.
Three-phase 380–500 V AC input compatible with industrial power systems.
IP20/Open Type design for electrical cabinet installation.
Supports Modbus TCP and Ethernet-based automation integration.
Key Features
Danfoss iC7-Automation drive series.
Air-cooled frequency converter.
3.0 A rated current.
1.1 kW / 1.5 hp power rating.
Three-phase 380–500 V AC input supply.
EMC category C3.
Frame size FA02a.
OPX20 2.8 control panel.
Standard I/O with digital inputs, digital I/O, analogue inputs, analogue output and relay outputs.
Functional safety with Safe Torque Off (STO).
Reliable Motor Control for Compact Automation Systems
Frequency converters such as the Danfoss iC7-Automation regulate AC motor speed by adjusting output frequency and voltage. This supports smoother operation, improved process control, reduced mechanical stress and enhanced energy performance across industrial equipment.
The Danfoss 137U2520 is designed for automation environments where compact installation, reliable communication and safe machine operation are essential. Its Modbus TCP support, standard I/O and STO safety function make it a practical choice for modern control panels and networked machinery.
Typical Applications
Industrial automation systems.
Compact conveyors and material handling equipment.
Pumps, fans and auxiliary motor control.
Packaging and production machinery.
Process control and manufacturing equipment.
OEM machine building and electrical control panels.
Technical Specifications
Power
1.1 kW
Current
3 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
SKU
137U2520
Product type
AC variable frequency drive
Cooling method
Air cooled
Rated output current
3.0 A
Power rating
1.1 kW / 1.5 hp
Input voltage
380–500 V AC
Input phases
3-phase
EMC category
C3
Protection rating
IP20 / Open Type
Frame size
FA02a
Control panel
OPX20 2.8
Fieldbus protocol
Modbus TCP
Other protocols
Ethernet port, no protocol
Functional safety
STO, not upgradable
Standard I/O
4 × DI, 2 × DI/O, 2 × AI, 1 × AO, 2 × RO
Dimensions (H × W × D)
approx. 270 × 90 × 221 mm
Weight
approx. 3.63 kg
EMC Filter
Industrial
Frequently Asked Questions
What is the Danfoss 137U2520 used for?
The Danfoss 137U2520 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and control panel applications.
What voltage does the Danfoss 137U2520 require?
This frequency converter operates from a three-phase 380–500 V AC supply.
What is the rated current of this drive?
The Danfoss 137U2520 has a rated output current of 3.0 A.
What motor power is supported by this drive?
The drive is typically rated for motors up to approximately 1.1 kW / 1.5 hp.
Which communication protocol is supported?
The Danfoss 137U2520 supports Modbus TCP for integration with industrial automation networks.
Trusted by Industrial Automation Engineers
Danfoss iC7-Automation frequency converters are used by machine builders, panel builders and automation engineers to deliver efficient, flexible and reliable motor control in demanding industrial environments.
Power
1.1 kW
Current
3 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
SKU
137U2520
Product type
AC variable frequency drive
Cooling method
Air cooled
Rated output current
3.0 A
Power rating
1.1 kW / 1.5 hp
Input voltage
380–500 V AC
Input phases
3-phase
EMC category
C3
Protection rating
IP20 / Open Type
Frame size
FA02a
Control panel
OPX20 2.8
Fieldbus protocol
Modbus TCP
Other protocols
Ethernet port, no protocol
Functional safety
STO, not upgradable
Standard I/O
4 × DI, 2 × DI/O, 2 × AI, 1 × AO, 2 × RO
Dimensions (H × W × D)
approx. 270 × 90 × 221 mm
Weight
approx. 3.63 kg
EMC Filter
Industrial
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.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
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...