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137L9790 Danfoss 500kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L9790 iC7-Automation frequency converter, an IP20 open type AC variable frequency drive with 893 A output current, 380–500 V AC three-phase supply, Safe Torque Off and EtherNet/IP communication.
£44,775.00
Why Choose the Danfoss 137L9790 iC7-Automation Frequency Converter?
The Danfoss 137L9790 is a powerful and highly reliable iC7-Automation frequency converter designed for demanding industrial motor control, automation and process applications. As part of the advanced Danfoss iC7-Automation drive series, it provides precise speed and torque control for large three-phase AC motors used in modern industrial environments.
This high-power variable frequency drive combines robust construction with intelligent control, integrated safety functionality and flexible network connectivity. The iC7-Automation platform is engineered to support efficient machine operation, reduce mechanical stress and improve overall process performance across a wide range of heavy-duty applications.
With a rated output current of 893 A and a three-phase 380–500 V AC supply, the 137L9790 is suitable for large industrial motors used in compressors, pumps, conveyors, fans and production equipment. Its IP20 open-type design is intended for installation inside electrical control cabinets and industrial drive systems.
Key Advantages
- High-performance variable frequency drive for industrial automation.
- 893 A rated output current for demanding motor applications.
- Three-phase 380–500 V AC input suitable for industrial power systems.
- Integrated Safe Torque Off (STO) safety function.
- EtherNet/IP fieldbus support for automation network integration.
- Air-cooled construction for dependable high-power operation.
- Designed to improve motor efficiency, process control and equipment reliability.
Key Features
- Danfoss iC7-Automation frequency converter series.
- 893 A nominal output current.
- Three-phase 380–500 V AC input supply.
- IP20 / open type enclosure.
- Frame size FA12.
- EMC category C3.
- Integrated Safe Torque Off (STO) functionality.
- EtherNet/IP enabled fieldbus communication.
- Ethernet port available with no additional protocol.
- OPX20 2.8-inch control panel.
- Standard I/O with digital inputs, analogue inputs, analogue output and relay outputs.
High-Power Motor Control for Industrial Systems
Variable frequency drives such as the Danfoss 137L9790 regulate motor speed by adjusting the frequency and voltage supplied to the motor. This helps optimise process control, improve energy efficiency and reduce mechanical wear on motors, pumps, fans and driven equipment.
The iC7-Automation series is designed for modern automation environments where connectivity, safety and operational reliability are essential. With integrated STO, Ethernet-based communication and robust high-power performance, the 137L9790 is well suited to demanding process and machine control applications.
Typical Applications
- Large industrial pumps and pumping systems.
- Industrial fans and ventilation equipment.
- Compressors and process machinery.
- Heavy-duty conveyor systems.
- Material handling and production equipment.
- Water and wastewater processing systems.
- Manufacturing and process automation plants.
- OEM machinery and control cabinet installations.
Technical Specifications
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| Power | 500 kW | |
|---|---|---|
| Current | 893 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Industrial | |
| Series | iC7-Automation | |
| Catalog number | 7FC-AUFA3N05-893AE20F3-000128496 | |
| Product type | AC variable frequency drive | |
| Rated output current | 893 A | |
| Input voltage | 380–500 V AC | |
| Input phases | 3-phase | |
| Protection rating | IP20 / open type | |
| Frame size | FA12 | |
| EMC category | C3 | |
| Cooling method | Air cooled | |
| Functional safety | Safe Torque Off (STO) | |
| Fieldbus protocol | EtherNet/IP | |
| Control panel | OPX20 2.8" | |
| Standard I/O | 4 × DI, 2 × DI/O, 2 × AI, 1 × AO, 2 × RO | |
| Dimensions (H × W × D) | approx. 1578 × 604 × 482 mm | |
| Weight | approx. 239.8 kg |
Frequently Asked Questions
What is the Danfoss 137L9790 used for?
The Danfoss 137L9790 is used to control the speed and torque of large three-phase AC motors in industrial automation, process control and heavy-duty machinery applications.
What output current is this drive rated for?
The drive has a rated output current of approximately 893 A.
What supply voltage does the drive require?
The 137L9790 operates from a three-phase 380–500 V AC supply.
Does the Danfoss 137L9790 include safety functionality?
Yes, it includes integrated Safe Torque Off (STO) functionality for machine safety applications.
Which communication protocol is enabled?
The drive supports EtherNet/IP fieldbus communication for integration with industrial automation networks.
Trusted for Demanding Industrial Drive Applications
Danfoss iC7-Automation drives are trusted by engineers, system integrators and industrial operators for efficient motor control, flexible connectivity and reliable high-power performance in demanding environments.
