Danfoss 137H8921 iC7 Automation air-cooled frequency converter with 385 A current rating, three-phase 380-500 V AC supply, IP21 UL Type 1 protection, PROFINET RT communication and integrated Safe Torque Off functionality.
£18,825.60
The Danfoss 137H8921 is a high-performance iC7 Automation frequency converter designed for demanding industrial motor control and automation applications. As part of the advanced Danfoss iC7 Automation platform, this air-cooled drive delivers precise speed control, dependable operation and flexible integration for modern industrial systems.
Engineered for machine builders, OEMs and system integrators, the Danfoss 137H8921 combines powerful motor control with integrated I/O, PROFINET communication and functional safety. Its IP21 / UL Type 1 construction makes it suitable for industrial installations where reliable drive performance, robust protection and efficient system integration are required.
With a 385 A current rating and three-phase 380–500 V AC supply, the Danfoss 137H8921 is ideal for conveyors, pumps, fans, compressors, production machinery and demanding process automation systems requiring accurate motor control and automation connectivity.
Frequency converters such as the Danfoss 137H8921 regulate motor speed and torque by adjusting the frequency and voltage supplied to an AC motor. This helps improve process control, reduce mechanical stress and increase energy efficiency across motor-driven equipment.
The iC7 Automation platform is designed for modern industrial applications requiring reliable drive performance, flexible configuration and simple integration with automation networks. With PROFINET RT communication, integrated safety and robust air-cooled construction, the 137H8921 supports efficient drive integration in connected industrial systems.
| Power | 200 kW |
|---|---|
| Current | 385 A |
| Phase | Three Phase |
| IP Rating | IP21 |
| Series | iC7 Automation |
| Model code | IC7-60FA3N05-385AE21F2+AGCX+AJFX+ALDC+BAPR+BDBA+BEF1+BF20+DAAU |
| Catalogue number | 7FC-AUFA3N05-385AE21F2-000115577 |
| Product type | Frequency converter |
| Cooling type | Air-cooled |
| Mains voltage | 380–500 V AC |
| Input phases | 3-phase |
| Current rating | 385 A |
| Protection rating | IP21 / UL Type 1 |
| Frame size | FK09c |
| EMC category | C2 |
| Control panel | Control Panel 2.8 OPX20 |
| Standard I/O | 4xDI, 2xDI/O, 2xAI, 1xAO, 2xRO |
| Fieldbus protocol | PROFINET RT OS7PR |
| Other protocol | Ethernet port, no protocol |
| Functional safety | STO, not upgradable |
| Net weight | Approx. 103.204 kg |
| Gross weight | Approx. 124.274 kg |
| EAN | 5715253458991 |
| EMC Filter | Commercial |
The Danfoss 137H8921 is used to control the speed and torque of three-phase AC motors in industrial machinery and automation systems.
The drive is designed for a three-phase 380–500 V AC supply.
The Danfoss 137H8921 has a current rating of 385 A.
This configuration includes PROFINET RT OS7PR fieldbus communication and an Ethernet port with no protocol enabled.
Yes, the Danfoss 137H8921 includes integrated Safe Torque Off (STO) functionality, which is not upgradable.
Danfoss iC7 Automation frequency converters are trusted by engineers, OEMs and system integrators for reliable motor control, efficient operation and flexible integration 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...