Danfoss 137U3992 iC7-Automation frequency converter, a three phase 380-500 V AC industrial variable frequency drive with 38 A output current, PROFINET RT communication and integrated STO functionality.
£3,321.60
The Danfoss 137U3992 is a reliable iC7-Automation frequency converter designed for precise control of three-phase AC motors in industrial automation and machinery applications. As part of the advanced Danfoss iC7-Automation drive series, it provides efficient motor speed control, flexible connectivity and dependable performance in demanding operating environments.
This air-cooled drive is engineered to help optimise industrial processes by regulating motor voltage and frequency, improving energy efficiency and reducing mechanical stress on connected equipment. Its modern control platform supports integration into automation networks, making it suitable for machine builders, panel builders and system integrators.
With a rated output current of 38 A and a three-phase 380-500 V AC supply, the Danfoss 137U3992 is suitable for medium-power industrial motor applications such as conveyors, pumps, fans, compressors and production machinery.
Frequency converters such as the Danfoss 137U3992 control motor speed by adjusting output frequency and voltage. This helps machinery run more efficiently, improves process precision and can reduce wear on motors, belts, pumps and other mechanical components.
The iC7-Automation platform is designed for modern industrial environments where communication, diagnostics and safety are essential. Its PROFINET RT connectivity and integrated STO function make it well suited for automated production systems and machine control panels.
| Power | 18.5 kW |
|---|---|
| Current | 38 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Part number | 137U3992 |
| Catalogue number | 7FC-AUFA3N05-38A0E20F3-000144965 |
| Product type | Frequency converter |
| Rated output current | 38 A |
| Input voltage | 380-500 V AC |
| Input phases | 3-phase |
| Cooling method | Air cooled |
| Protection rating | IP20 Open Type |
| EMC category | C3 |
| Communication protocol | PROFINET RT OS7PR |
| Ethernet | Integrated Ethernet port |
| Functional safety | STO (Safe Torque Off) |
| Control panel | OPX20 |
| Dimensions (H × W × D) | approx. 399 × 165 × 269 mm |
| Weight | approx. 13.57 kg |
| EMC Filter | Industrial |
The Danfoss 137U3992 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
The drive has a rated output current of approximately 38 A.
The drive operates from a three-phase 380-500 V AC supply.
Yes, this configuration supports PROFINET RT communication and includes Ethernet connectivity for automation system integration.
Yes, the Danfoss 137U3992 includes integrated Safe Torque Off (STO) functionality for enhanced machine safety.
Danfoss iC7-Automation drives are trusted by engineers, OEMs and system integrators for efficient motor control, dependable operation and seamless integration into industrial automation systems.
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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...