137H3680 Danfoss 5.5kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137H3680 iC7-Automation frequency converter with 12.5 A output, 380–500 V AC supply, modular architecture and STO safety for industrial automation applications.
Why Choose the Danfoss 137H3680 iC7-Automation Frequency Converter?
The Danfoss 137H3680 is a high-performance iC7-Automation frequency converter designed for advanced industrial motor control applications requiring precision, reliability and seamless integration into modern automation systems. It forms part of Danfoss’ latest generation drive platform, engineered for high efficiency and intelligent system connectivity.
Built for demanding industrial environments, the iC7 series delivers advanced vector control, modular expandability and integrated safety functionality. The 137H3680 provides stable torque performance, smooth motor operation and efficient energy use, making it suitable for a wide range of automation and process control applications.
With a rated output current of 12.5 A and a three-phase 380–500 V AC supply, this model is well suited for small to medium industrial motors used in conveyors, pumps, fans, compressors and general-purpose machinery systems.
Key Advantages
Advanced iC7-Automation platform for precise motor control and optimisation.
12.5 A output current suitable for medium-duty industrial applications.
380–500 V AC supply range for broad industrial compatibility.
Integrated Safe Torque Off (STO) safety function for secure operation.
High energy efficiency through advanced motor control algorithms.
Compact IP20 cabinet-mounted design for flexible installation.
Modular architecture for scalable automation integration.
Designed for continuous industrial duty performance.
Key Features
Danfoss iC7-Automation series.
Model: 137H3680.
12.5 A rated output current.
380–500 V AC input voltage.
High-precision vector motor control.
Integrated STO safety functionality (SIL3 architecture).
Modular communication options (fieldbus dependent).
Optimised thermal and cooling design.
Built-in industrial IoT readiness.
High power density compact construction.
Reliable Motor Control for Industrial Applications
The iC7-Automation series is designed to deliver highly accurate and stable motor performance across dynamic load conditions. It ensures smooth acceleration, consistent torque and efficient operation even in demanding industrial environments.
Its modular platform supports flexible communication and system expansion, making it suitable for integration into modern smart factory and Industry 4.0 environments.
Typical Applications
Industrial conveyor systems.
Pumps and fluid handling systems.
HVAC and ventilation systems.
Compressors and process machinery.
Packaging and production equipment.
General industrial automation systems.
Technical Specifications
Power
5.5 kW
Current
12.5 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
Product type
Frequency converter
Rated current
12.5 A
Input voltage
380–500 V AC
Input phases
3-phase
Frequency
50 / 60 Hz
Output frequency
0–590 Hz
Protection rating
IP20 (cabinet mounted)
Cooling
Forced air cooling
Frame size
FA02b
Safety
Safe Torque Off (STO)
EMC Filter
None
Frequently Asked Questions
What is the Danfoss 137H3680 used for?
It is used for precise control of AC motor speed and torque in industrial automation systems.
Does it support communication protocols?
Yes, it supports modular fieldbus options depending on configuration, including Ethernet-based systems.
Is STO safety included?
Yes, Safe Torque Off (STO) functionality is integrated for safe motor operation.
What type of motors is it compatible with?
It is compatible with standard industrial AC induction motors used in automation and process systems.
Where is it installed?
It is designed for installation inside electrical control cabinets with IP20 protection.
Trusted by Automation Engineers Worldwide
Danfoss iC7-Automation drives deliver intelligent, efficient and reliable motor control for modern industrial automation and process systems.
Power
5.5 kW
Current
12.5 A
Phase
Three Phase
IP Rating
IP20
Series
iC7-Automation
Product type
Frequency converter
Rated current
12.5 A
Input voltage
380–500 V AC
Input phases
3-phase
Frequency
50 / 60 Hz
Output frequency
0–590 Hz
Protection rating
IP20 (cabinet mounted)
Cooling
Forced air cooling
Frame size
FA02b
Safety
Safe Torque Off (STO)
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
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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...