Danfoss 137U5729 iC7-Automation variable frequency drive, an air-cooled three phase 380-500 V AC frequency converter with 7.2 A output current, PROFINET RT communication and integrated functional safety.
£1,333.60
The Danfoss 137U5729 is a powerful iC7-Automation variable frequency drive (VFD) designed for precise speed and torque control of three-phase AC motors in industrial automation systems. As part of the advanced Danfoss iC7-Automation series, this frequency converter is built for machine builders, OEM manufacturers and industrial facilities requiring efficient motor control, reliable operation and seamless network integration.
This air-cooled drive combines robust power conversion with integrated communication, flexible I/O and functional safety features. Its compact IP20 / Open Type format is ideal for installation inside electrical control cabinets, while its built-in automation features help simplify commissioning, monitoring and control.
With a rated output current of 7.2 A and a three-phase 380-500 V AC supply, the Danfoss 137U5729 is suited to industrial machinery including conveyors, production equipment, pumps, fans, packaging systems and automated process machinery. Integrated PROFINET RT and Ethernet connectivity make it suitable for modern networked automation environments.
Variable frequency drives such as the Danfoss 137U5729 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This allows machinery to operate with improved efficiency, smoother acceleration, better process control and reduced mechanical stress on driven equipment.
The iC7-Automation platform is designed for connected industrial systems, providing communication, safety and I/O functionality required for modern automation networks. Its combination of control performance and integration flexibility makes it suitable for both standalone machines and larger production environments.
| Power | 3 kW |
|---|---|
| Current | 7.2 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Catalogue number | 7FC-AUFA3N05-07A2E20F2-000147283 |
| Product type | AC variable frequency drive |
| Drive type | Air-cooled frequency converter |
| Rated output current | 7.2 A |
| Input voltage | 380-500 V AC |
| Input phases | 3-phase |
| Protection rating | IP20 / Open Type |
| Frame size | FA02b |
| EMC category | C2 |
| Control panel | Control Panel 2.8 OPX20 |
| Fieldbus protocol | PROFINET RT OS7PR |
| Other communication | Ethernet port |
| Digital inputs | 4 x DI |
| Configurable DI/O | 2 x DI/O |
| Analogue inputs | 2 x AI |
| Analogue outputs | 1 x AO |
| Relay outputs | 2 x RO |
| Functional safety | STO, SS1-t, fieldbus |
| EMC Filter | Commercial |
The Danfoss 137U5729 is used to control the speed and torque of three-phase AC motors in industrial automation, machine building and process control applications.
The drive operates from a three-phase 380-500 V AC supply.
The Danfoss 137U5729 has a rated output current of 7.2 A.
Yes, the drive includes PROFINET RT fieldbus communication and an Ethernet port for automation system integration.
The drive includes integrated Safe Torque Off (STO), SS1-t and fieldbus safety functionality.
Danfoss iC7-Automation frequency converters are trusted by machine builders and industrial automation professionals for reliable motor control, advanced connectivity and efficient performance in demanding industrial environments.
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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...