Danfoss 137U7784 iC7-Automation air-cooled frequency converter with 480 A output current, three-phase 380-500 V AC input, IP54 / UL Type 12 enclosure, Modbus TCP communication and integrated STO safety functionality.
£23,168.00
The Danfoss 137U7784 is a high-power iC7-Automation frequency converter designed for precise and dependable control of large three-phase AC motors in demanding industrial automation environments. As part of the advanced Danfoss iC7-Automation series, it delivers robust speed control, integrated safety and modern connectivity for heavy-duty motor-driven systems.
This air-cooled drive is engineered for industrial applications requiring high output current, reliable continuous operation and seamless integration with automation networks. Its protected enclosure, Ethernet connectivity and Modbus TCP support make it suitable for process control, manufacturing, infrastructure and high-power machinery applications.
With a rated output current of 480 A and operation from a three-phase 380-500 V AC supply, the 137U7784 is ideal for large motors used in pumps, fans, compressors, conveyors and heavy-duty production equipment. The IP54 / UL Type 12 enclosure provides protection for demanding industrial installations.
Frequency converters such as the Danfoss 137U7784 regulate motor speed by adjusting output voltage and frequency. This helps improve process precision, reduce mechanical stress and optimise energy consumption across large industrial motor-driven systems.
The iC7-Automation platform is developed for demanding automation applications requiring high performance, robust connectivity and dependable safety functionality. With Modbus TCP, Ethernet connectivity and integrated STO, the 137U7784 can be integrated into PLC-based systems, SCADA networks and wider industrial control architectures.
| Power | 250 kW |
|---|---|
| Current | 480 A |
| Phase | Three Phase |
| IP Rating | IP54 |
| Series | iC7-Automation |
| Type code | 7FC-AUFA3N05-480AE54F2-000153348 |
| Product type | Air-cooled frequency converter |
| Rated output current | 480 A |
| Input voltage | 380-500 V AC |
| Input phases | 3-phase |
| Input frequency | 50 / 60 Hz |
| Protection rating | IP54 / UL Type 12 |
| Frame size | FB10C |
| EMC category | C2 |
| Control panel | Control Panel 2.8 OPX20 |
| Standard I/O | None |
| Fieldbus protocol | Modbus TCP |
| Other protocols | Ethernet port, no protocol |
| Functional safety | STO, not upgradable |
| Cooling method | Air-cooled |
| EMC Filter | Commercial |
The Danfoss 137U7784 is used to control the speed and torque of large three-phase AC motors in industrial automation, process control and heavy-duty machinery applications.
The drive has a rated output current of approximately 480 A.
The 137U7784 operates from a three-phase 380-500 V AC supply.
Yes, the drive includes integrated Safe Torque Off (STO) functionality.
This model supports Modbus TCP fieldbus communication and includes an Ethernet port for automation integration.
Danfoss iC7-Automation frequency converters are trusted by automation engineers and industrial operators for reliable motor control, advanced connectivity and efficient operation in demanding high-power applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...