137H3665 Danfoss 0.55kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137H3665 iC7-Automation frequency converter, 1.8 A, 380-500 V AC with PROFINET RT communication and STO safety for industrial automation applications.
Why Choose the Danfoss 137H3665 iC7-Automation Frequency Converter?
The Danfoss 137H3665 is a high-performance iC7-Automation frequency converter designed for advanced industrial motor control applications. Built on Danfoss’ latest drive platform, it delivers precise speed and torque regulation, strong system integration and reliable operation in demanding automation environments.
Engineered for OEM machinery and industrial systems, the iC7-Automation series provides flexible connectivity, robust performance and intelligent control features. It is ideal for applications requiring stable motor operation under varying load conditions, while maintaining high energy efficiency and operational reliability.
With a rated output of 1.8 A, a three-phase 380–500 V AC supply, and integrated PROFINET RT communication, the Danfoss 137H3665 is well suited for compact industrial installations such as conveyors, pumps, fans and automated production equipment.
Key Advantages
Advanced industrial frequency converter for automation systems.
1.8 A rated output current for precise motor control.
Three-phase 380–500 V AC input for industrial compatibility.
Integrated PROFINET RT communication for fast PLC integration.
Safe Torque Off (STO) functional safety included as standard.
High energy efficiency for reduced operating costs.
Compact design suitable for cabinet mounting.
Supports both induction and permanent magnet motors.
Key Features
Danfoss iC7-Automation series drive.
Model: 137H3665.
1.8 A nominal output current.
380–500 V AC three-phase supply.
Air-cooled compact construction for stable thermal performance.
High-performance motor control with advanced regulation algorithms.
Integrated Safe Torque Off (STO) safety function.
Built-in PROFINET RT fieldbus communication.
Flexible I/O configuration for system integration.
Optimised for Industry 4.0-ready automation systems.
Reliable Motor Control for Industrial Applications
The Danfoss iC7-Automation platform is designed to deliver precise motor control under dynamic load conditions, ensuring stable operation, reduced mechanical stress and improved process efficiency.
Its modular architecture and advanced communication capabilities allow seamless integration into modern automation systems, supporting scalable machine design and connected industrial environments.
Typical Applications
Industrial conveyor systems.
Pumps and fluid handling systems.
HVAC fans and air handling equipment.
Packaging machinery.
General industrial automation systems.
OEM machine integration projects.
Technical Specifications
Power
0.55 kW
Current
1.8 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
Product type
Frequency converter
Rated current
1.8 A
Input voltage
380–500 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
up to 590 Hz
Protection rating
IP20 / Open type
Frame size
FA02b
Cooling method
Air-cooled
Safety function
Safe Torque Off (STO)
I/O configuration
4DI, 2DI/O, 2AI, 1AO, 2RO
EMC Filter
None
Frequently Asked Questions
What is the Danfoss 137H3665 used for?
It is used for precise speed and torque control of AC motors in industrial automation systems.
Does it support industrial communication?
Yes, it includes integrated PROFINET RT communication for PLC integration.
Is safety functionality included?
Yes, Safe Torque Off (STO) is included as standard.
What types of motors are supported?
It supports both induction and permanent magnet motors.
Where is it typically installed?
It is designed for installation inside industrial control cabinets.
Trusted by Automation Engineers Worldwide
Danfoss iC7-Automation drives are widely recognised for precision control, robust performance and seamless integration into modern industrial systems.
Power
0.55 kW
Current
1.8 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
Product type
Frequency converter
Rated current
1.8 A
Input voltage
380–500 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
up to 590 Hz
Protection rating
IP20 / Open type
Frame size
FA02b
Cooling method
Air-cooled
Safety function
Safe Torque Off (STO)
I/O configuration
4DI, 2DI/O, 2AI, 1AO, 2RO
EMC Filter
None
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...