Danfoss 137H9903 iC7-Automation frequency converter, an air-cooled three-phase 380-500 V AC variable frequency drive with 38 A output current, EtherNet/IP communication and integrated Safe Torque Off functionality.
£3,292.80
The Danfoss 137H9903 is a high-performance iC7-Automation frequency converter designed for precise motor speed and torque control in demanding industrial automation applications. As part of the advanced Danfoss iC7 drive series, this air-cooled variable frequency drive provides reliable control of three-phase AC motors while supporting efficient integration into modern process and machine control systems.
This drive is engineered for industrial environments where dependable motor performance, flexible connectivity and integrated safety are essential. With standard I/O, EtherNet/IP fieldbus communication and built-in Safe Torque Off functionality, the Danfoss 137H9903 helps simplify automation design while improving operational control and energy efficiency.
With a rated output current of 38 A and a three-phase 380–500 V AC supply, the 137H9903 is suitable for a wide range of motor-driven machinery including conveyors, pumps, fans, compressors and production equipment. Its IP20/Open Type enclosure and FA05a frame make it ideal for cabinet and control panel installation.
Frequency converters such as the Danfoss 137H9903 regulate motor speed by adjusting output voltage and frequency. This allows industrial machinery to operate more efficiently while improving process control, reducing mechanical stress and supporting smoother start-stop operation.
The Danfoss iC7-Automation platform is designed for demanding automation environments where communication, safety and performance are key requirements. With EtherNet/IP connectivity, flexible I/O and integrated STO functionality, this drive supports efficient integration into modern control architectures.
| Power | 18.5 kW |
|---|---|
| Current | 38 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Catalogue number | 7FC-AUFA3N05-38A0E20F3-000117084 |
| Model code | IC7-60FA3N05-38A0E20F3+ACBC+ALDC+BAIP+BDBA+BEF1+DAAU |
| Product type | Frequency converter / variable frequency drive |
| Cooling method | Air-cooled |
| Rated output current | 38 A |
| Input voltage | 380–500 V AC |
| Input phases | 3-phase |
| Protection rating | IP20/Open Type |
| Frame size | FA05a |
| EMC category | C3 |
| Operator panel | Blind Panel OPX00 |
| Standard I/O | 4xDI, 2xDI/O, 2xAI, 1xAO, 2xRO |
| Fieldbus protocol | EtherNet/IP OS7IP |
| Other protocols | Ethernet port, no protocol |
| Functional safety | STO, not upgradable |
| EMC Filter | Industrial |
The Danfoss 137H9903 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
The drive operates from a three-phase 380–500 V AC supply.
The Danfoss 137H9903 has a rated output current of 38 A.
The drive includes EtherNet/IP OS7IP fieldbus protocol support for industrial automation network integration.
Yes, it includes integrated Safe Torque Off (STO) functionality, which is not upgradable.
Danfoss iC7-Automation frequency converters are used by engineers, machine builders and industrial operators to deliver reliable motor control, efficient operation and flexible integration into modern automation systems.
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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...