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137U3992 Danfoss 18.5kW Three Phase iC7-Automation Variable Speed Drive
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.
£3,114.00
Why Choose the Danfoss 137U3992 iC7-Automation Frequency Converter?
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.
Key Advantages
- Modern industrial frequency converter for automation and machinery applications.
- 38 A rated output current for medium-power motor control.
- Three-phase 380-500 V AC input suitable for industrial power systems.
- Integrated Safe Torque Off (STO) functionality.
- PROFINET RT communication support for automation networks.
- Air-cooled design for efficient thermal performance.
- Compact IP20 open-type format for cabinet installation.
- Designed to improve energy efficiency, process control and system reliability.
Key Features
- Danfoss iC7-Automation series.
- 38 A rated output current.
- Three-phase 380-500 V AC input supply.
- Air-cooled frequency converter design.
- Integrated Safe Torque Off (STO) safety function.
- PROFINET RT OS7PR communication capability.
- Built-in Ethernet connectivity.
- Standard I/O configuration for industrial control systems.
- Control Panel 2.8 OPX20 interface.
- IP20 open-type enclosure for control cabinet mounting.
Efficient Motor Control for Industrial Systems
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.
Typical Applications
- Industrial conveyors and material handling equipment.
- Pumps, fans and ventilation systems.
- Compressors and process machinery.
- Packaging and production lines.
- Machine building and OEM automation systems.
- Water treatment and utility applications.
- General industrial motor speed control.
Technical Specifications
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| Power | 18.5 kW | |
|---|---|---|
| Current | 38 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Industrial | |
| 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 |
Frequently Asked Questions
What is the Danfoss 137U3992 used for?
The Danfoss 137U3992 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
What output current does this drive provide?
The drive has a rated output current of approximately 38 A.
What supply voltage does the Danfoss 137U3992 require?
The drive operates from a three-phase 380-500 V AC supply.
Does this frequency converter support industrial networking?
Yes, this configuration supports PROFINET RT communication and includes Ethernet connectivity for automation system integration.
Is Safe Torque Off included?
Yes, the Danfoss 137U3992 includes integrated Safe Torque Off (STO) functionality for enhanced machine safety.
Trusted for Modern Automation
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.
