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137U8421 Danfoss 55kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U8421 iC7-Automation air-cooled frequency converter with 3-phase 380-500 V AC supply, 106 A current rating, IP20/Open Type enclosure, EtherNet/IP communication and integrated Safe Torque Off.
£7,080.00
Why Choose the Danfoss 137U8421 iC7-Automation Frequency Converter?
The Danfoss 137U8421 is a powerful iC7-Automation air-cooled frequency converter designed for precise speed and torque control in demanding industrial automation applications. As part of the advanced Danfoss iC7-Automation series, this drive delivers reliable motor control, flexible connectivity and efficient performance for machinery, process and panel-mounted drive systems.
This frequency converter is configured for integration into modern PLC-controlled environments. With integrated EtherNet/IP communication, standard I/O, Control Panel 2.8 OPX20 and Safe Torque Off functionality, the Danfoss 137U8421 supports machine builders, panel builders and system integrators requiring dependable automation connectivity.
With a three-phase 380–500 V AC supply, 106 A current rating and IP20/Open Type enclosure, the Danfoss 137U8421 is suitable for industrial drive panels and automation equipment. Its FA07 frame, C3 EMC configuration and air-cooled construction make it well suited to conveyors, pumps, fans, production machinery and OEM automation systems.
Key Advantages
- Reliable Danfoss iC7-Automation frequency converter.
- Air-cooled drive design for industrial panel installation.
- Three-phase 380–500 V AC input for industrial power systems.
- 106 A rated current for demanding automation equipment.
- Integrated EtherNet/IP fieldbus communication.
- Built-in Safe Torque Off (STO) safety function.
- Standard I/O configuration for flexible machine control.
Key Features
- Danfoss iC7-Automation product series.
- Air-cooled frequency converter.
- 3-phase 380–500 V AC supply.
- 106 A rated current.
- IP20/Open Type protection rating.
- Frame size FA07.
- EMC category C3.
- Control Panel 2.8 OPX20.
- EtherNet/IP OS7IP fieldbus protocol enabled.
- Standard I/O: 4 DI, 2 DI/O, 2 AI, 1 AO and 2 RO.
- Integrated Safe Torque Off (STO), not upgradable.
High-Performance Motor Control for Industrial Automation
Frequency converters such as the Danfoss 137U8421 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This helps improve process accuracy, reduce mechanical stress and support efficient operation across industrial machinery and driven equipment.
The iC7-Automation platform is designed for modern automation systems where connectivity, safety and reliable installation are important. With EtherNet/IP, standard I/O, OPX20 control panel and STO functionality, this drive supports reliable integration into PLC-controlled machinery and industrial control panels.
Typical Applications
- Industrial conveyors and material handling systems.
- Packaging and production machinery.
- Pumps, fans and ventilation equipment.
- Processing and handling equipment.
- Machine building and OEM automation systems.
- PLC-controlled industrial drive panels.
- Applications requiring EtherNet/IP communication.
Technical Specifications
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| Power | 55 kW | |
|---|---|---|
| Current | 106 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Industrial | |
| Series | iC7-Automation | |
| Model / Part number | 137U8421 | |
| Model code | IC7-60FA3N05-106AE20F3+BAIP+BDBA+BEF1+BF20+CAC0+DAAU | |
| Product type | Frequency converter | |
| Cooling type | Air cooled | |
| Input voltage | 380–500 V AC | |
| Input phases | 3-phase | |
| Rated current | 106 A | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 / Open Type | |
| Frame size | FA07 | |
| EMC category | C3 | |
| Control panel | Control Panel 2.8 OPX20 | |
| Fieldbus protocol | EtherNet/IP OS7IP | |
| Other communication | Ethernet port, no protocol | |
| Standard I/O | 4 DI, 2 DI/O, 2 AI, 1 AO, 2 RO | |
| Functional safety | Safe Torque Off (STO), not upgradable | |
| Mounting type | Cabinet / panel mounting |
Frequently Asked Questions
What is the Danfoss 137U8421 used for?
The Danfoss 137U8421 is used to control the speed and torque of AC motors in industrial machinery, automation systems and panel-mounted drive applications.
What supply voltage does the Danfoss 137U8421 require?
The drive operates from a three-phase 380–500 V AC supply.
What is the rated current of this frequency converter?
The Danfoss 137U8421 has a rated current of 106 A.
Does the Danfoss 137U8421 include EtherNet/IP?
Yes, this model includes EtherNet/IP OS7IP fieldbus communication for industrial automation integration.
What safety function is included?
The drive includes integrated Safe Torque Off (STO) functionality.
Trusted by Automation Engineers Worldwide
Danfoss iC7-Automation frequency converters are used by machine builders, system integrators and industrial engineers to deliver reliable motor control, efficient operation and flexible automation connectivity.
