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137L9771 Danfoss 400kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L9771 iC7-Automation frequency converter, an air-cooled three-phase AC drive with 736 A rated current, 380-500 V AC input, IP20 open-type enclosure, EtherNet/IP communication and integrated STO safety function.
£31,742.25
Why Choose the Danfoss 137L9771 iC7-Automation Frequency Converter?
The Danfoss 137L9771 is a high-capacity iC7-Automation frequency converter designed for precise and reliable motor control in demanding industrial automation applications. As part of the advanced Danfoss iC7-Automation drive series, it delivers efficient speed and torque regulation for large three-phase AC motors used in process control, production machinery and heavy-duty industrial systems.
This air-cooled frequency converter is engineered for modern automation environments where performance, connectivity and safety are essential. With integrated communication support, flexible I/O and functional safety, the Danfoss 137L9771 helps simplify integration into PLC-controlled systems and industrial networks.
With a three-phase 380-500 V AC supply, 736 A rated current and IP20 open-type enclosure, the Danfoss 137L9771 is suitable for high-power motor control applications requiring dependable operation inside electrical cabinets and control panels.
Key Advantages
- High-capacity iC7-Automation frequency converter for industrial motor control.
- 736 A rated current for demanding high-power applications.
- Three-phase 380-500 V AC input compatible with industrial power systems.
- Integrated Safe Torque Off (STO) functional safety.
- EtherNet/IP fieldbus protocol enabled for automation networks.
- Flexible standard I/O for machine and process control.
- Air-cooled construction for reliable industrial operation.
- IP20 open-type format for cabinet and panel installation.
Key Features
- Danfoss iC7-Automation series.
- Air-cooled frequency converter.
- 736 A rated current.
- Three-phase 380-500 V AC mains supply.
- IP20 / Open Type enclosure.
- Frame size FA11.
- EMC category C3.
- Control Panel 2.8 OPX20.
- Standard I/O: 4x DI, 2x DI/O, 2x AI, 1x AO, 2x RO.
- Fieldbus protocol enabled: EtherNet/IP OS7IP.
- Integrated Ethernet port.
- Functional safety: Safe Torque Off (STO).
- Options configured according to model code.
Reliable High-Power Motor Control for Automation Systems
Frequency converters such as the Danfoss 137L9771 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This allows industrial systems to operate with improved efficiency, smoother acceleration and better process control while reducing mechanical stress on connected machinery.
The iC7-Automation platform is designed for modern industrial applications that require strong connectivity and flexible configuration. With EtherNet/IP communication, integrated Ethernet and configurable I/O, the drive can be incorporated into automation systems, production lines and high-power control installations.
Typical Applications
- Heavy-duty industrial motor control.
- Large pumps, fans and ventilation systems.
- Process automation and production machinery.
- Material handling and conveyor systems.
- Industrial manufacturing installations.
- OEM machine building applications.
- Electrical cabinet and control panel installations.
Technical Specifications
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| Power | 400 kW | |
|---|---|---|
| Current | 736 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Industrial | |
| Series | iC7-Automation | |
| Catalogue number | 7FC-AUFA3N05-736AE20F3-000128379 | |
| Product type | AC frequency converter | |
| Drive type | Air-cooled frequency converter | |
| Product code | IC7-60FA3N05-736AE20F3+ACBC+AGCX+AJFX+BAIP+BDBA+BEF1+BF20+DAAU | |
| Rated current | 736 A | |
| Input voltage | 380-500 V AC | |
| Input phases | 3-phase | |
| Protection rating | IP20 | |
| Enclosure type | Open Type | |
| Frame size | FA11 | |
| EMC category | C3 | |
| Control panel | 2.8 OPX20 | |
| Standard I/O | 4x DI, 2x DI/O, 2x AI, 1x AO, 2x RO | |
| Communication protocol | EtherNet/IP OS7IP | |
| Other communication | Ethernet port, no protocol | |
| Safety function | Safe Torque Off (STO) |
Frequently Asked Questions
What is the Danfoss 137L9771 used for?
The Danfoss 137L9771 is used to control the speed and torque of large three-phase AC motors in industrial automation, process control and machine building applications.
What current rating does this drive have?
The drive has a rated current of approximately 736 A.
What supply voltage does the Danfoss 137L9771 require?
The drive operates from a three-phase 380-500 V AC supply.
Does this drive support EtherNet/IP?
Yes, the Danfoss 137L9771 has EtherNet/IP OS7IP fieldbus protocol enabled and also includes an Ethernet port.
What enclosure rating does this drive have?
The drive has an IP20 open-type enclosure designed for installation inside suitable electrical cabinets or control panels.
Trusted by Industrial Automation Engineers
Danfoss iC7-Automation frequency converters are trusted by engineers, machine builders and system integrators for reliable high-power motor control, efficient operation and seamless automation integration.
