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137L9791 Danfoss 560kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L9791 iC7-Automation frequency converter, an IP20 open type AC variable frequency drive with 1000 A output current, 380–500 V AC three-phase supply, Safe Torque Off and EtherNet/IP communication.
£52,236.00
Why Choose the Danfoss 137L9791 iC7-Automation Frequency Converter?
The Danfoss 137L9791 is a high-power iC7-Automation frequency converter designed for demanding industrial automation, process control and heavy-duty motor applications. As part of the advanced Danfoss iC7-Automation drive series, it provides precise speed and torque control for large three-phase AC motors in modern industrial systems.
This variable frequency drive combines robust power handling with intelligent automation features, integrated safety and flexible connectivity. The iC7-Automation platform is engineered to improve motor efficiency, reduce mechanical stress and support reliable operation across demanding machinery and process environments.
With a rated output current of 1000 A and a three-phase 380–500 V AC supply, the Danfoss 137L9791 is ideal for large industrial motors used in compressors, pumps, fans, conveyors and production systems. Its IP20 open-type enclosure is designed for installation inside electrical cabinets and industrial drive panels.
Key Advantages
- High-power variable frequency drive for industrial automation.
- 1000 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) functional safety.
- EtherNet/IP fieldbus support for automation network integration.
- Air-cooled design for reliable high-power operation.
- Designed to enhance motor efficiency, process control and operational reliability.
Key Features
- Danfoss iC7-Automation frequency converter series.
- 1000 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 137L9791 regulate motor speed by adjusting the frequency and voltage supplied to the motor. This helps improve process control, optimise energy usage and reduce mechanical wear across motors, pumps, fans and driven machinery.
The iC7-Automation range is built for modern industrial environments where connectivity, safety and long-term reliability are essential. With integrated STO, EtherNet/IP communication and high-current performance, the 137L9791 is well suited to demanding automation and process control installations.
Typical Applications
- Large industrial pumps and pumping stations.
- Industrial fans and ventilation systems.
- Compressors and process machinery.
- Heavy-duty conveyor systems.
- Material handling and production equipment.
- Water and wastewater processing plants.
- Manufacturing and process automation systems.
- OEM machinery and electrical control cabinet installations.
Technical Specifications
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| Power | 560 kW | |
|---|---|---|
| Current | 1000 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Industrial | |
| Series | iC7-Automation | |
| Catalog number | 7FC-AUFA3N05-1000E20F3-000128501 | |
| Product type | AC variable frequency drive | |
| Rated output current | 1000 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 137L9791 used for?
The Danfoss 137L9791 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 1000 A.
What supply voltage does the drive require?
The 137L9791 operates from a three-phase 380–500 V AC supply.
Does the Danfoss 137L9791 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 dependable high-power performance in demanding environments.
