Danfoss 137U5621 iC7-Automation frequency converter, a three phase 380-500 V AC variable frequency drive with 893 A output current, PROFINET RT communication and IP54 / UL Type 12 protection for industrial motor control applications.
£54,066.40
The Danfoss 137U5621 is a high-power iC7-Automation frequency converter designed for precise speed and torque control of large three-phase AC motors in demanding industrial automation applications. Built for efficiency, reliability and flexible system integration, this advanced variable frequency drive helps improve process stability, reduce energy consumption and minimise mechanical stress on driven machinery.
As part of the Danfoss iC7-Automation series, the 137U5621 combines robust motor control performance with industrial connectivity, integrated safety and a protected enclosure. It is ideal for system integrators, OEMs and industrial users requiring dependable high-capacity drive technology for modern automation systems.
With a rated output current of 893 A and operation from a three-phase 380–500 V AC supply, the 137U5621 is suitable for heavy-duty pumps, fans, compressors, conveyors and process machinery. Its IP54 / UL Type 12 enclosure, air-cooled construction and PROFINET RT communication support make it well suited to demanding industrial installations.
Frequency converters such as the Danfoss 137U5621 regulate motor speed by varying the voltage and frequency supplied to an AC motor. This enables smooth acceleration, controlled deceleration and accurate speed adjustment, helping improve energy efficiency and reduce wear on motors and driven equipment.
The iC7-Automation platform is designed for demanding industrial installations where reliability, connectivity and safety are essential. With PROFINET RT communication, standard I/O and integrated STO functionality, this drive can be incorporated into advanced automation networks and high-power control systems.
| Power | 500 kW |
|---|---|
| Current | 893 A |
| Phase | Three Phase |
| IP Rating | IP54 |
| Series | iC7-Automation |
| Catalogue number | 7FC-AUFA3N05-893AE54F3-000147075 |
| Model code | IC7-60FA3N05-893AE54F3+AGCX+AJFD+APHS+BAPR+BDBA+BEF1+BF20+DAAU |
| Product type | Frequency converter / variable frequency drive |
| Rated output current | 893 A |
| Input voltage | 380–500 V AC |
| Input phases | 3-phase |
| Frequency | 50 / 60 Hz |
| Protection rating | IP54 / UL Type 12 |
| Frame size | FB12 |
| Cooling method | Air-cooled |
| EMC category | C3 |
| Control panel | OPX20 2.8-inch display |
| Standard I/O | 4×DI, 2×DI/O, 2×AI, 1×AO, 2×RO |
| Fieldbus protocol | PROFINET RT OS7PR |
| Other connectivity | Ethernet port, no protocol |
| Functional safety | Safe Torque Off (STO), not upgradable |
| EMC Filter | Industrial |
The Danfoss 137U5621 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 Danfoss 137U5621 provides a rated output current of 893 A.
The 137U5621 operates from a three-phase 380–500 V AC supply.
This model supports PROFINET RT OS7PR fieldbus communication and includes an Ethernet port for connectivity.
Yes, the drive includes integrated Safe Torque Off (STO) functional safety.
Danfoss iC7-Automation frequency converters are trusted by engineers, system integrators and OEMs for efficient high-power motor control, robust connectivity and dependable 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...