Danfoss 137U1951 iC7-Automation frequency converter, a three phase variable frequency drive with 38 A rated output current, 380–500 V AC input, PROFINET RT communication and integrated STO safety for industrial automation systems.
£3,940.00
The Danfoss 137U1951 is a powerful iC7-Automation frequency converter designed for precise speed and torque control of three-phase AC motors in demanding industrial automation systems. As part of the advanced Danfoss iC7-Automation drive series, it delivers reliable motor control, flexible connectivity and integrated safety functionality for modern machinery and production environments.
Engineered for machine builders, OEMs and automation engineers, this air-cooled frequency converter combines robust industrial performance with compact cabinet installation. Its standard I/O, PROFINET RT communication and integrated OPX20 control panel support efficient commissioning and seamless integration into automation networks.
With a rated output current of 38 A, a three-phase 380–500 V AC supply and an IP20 open-type enclosure, the Danfoss 137U1951 is ideal for conveyors, pumps, fans, packaging machinery, processing equipment and automated production systems. Its FA05b frame is designed for installation inside electrical control cabinets and machine panels.
Variable frequency drives such as the Danfoss 137U1951 regulate motor speed by adjusting output frequency and voltage. This helps improve process accuracy, reduce mechanical stress and support efficient operation across industrial machinery and production systems.
The iC7-Automation platform is designed for connected industrial environments, combining precise motor control with communication, diagnostics and integrated safety. With PROFINET RT support and standard I/O, this drive can be integrated into modern automation systems with minimal complexity.
| Power | 18.5 kW |
|---|---|
| Current | 38 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Part number | 137U1951 |
| Catalogue number | 7FC-AUFA3N05-38A0E20F1-000142344 |
| Product type | Frequency converter / variable frequency drive |
| Model code | IC7-60FA3N05-38A0E20F1+ACBC+AGCX+ALDC+BAPR+BDBA+BEF1+BF20+CAC0+CBX0+DAAU |
| Rated motor power | 18.5 kW |
| Rated output current | 38 A |
| Input voltage | 380–500 V AC |
| Input phases | Three-phase |
| Protection rating | IP20 / Open Type |
| Frame size | FA05b |
| Cooling method | Air cooled |
| EMC category | C1 and C2 |
| Fieldbus | PROFINET RT OS7PR |
| Other protocols | Ethernet port, no protocol |
| Functional safety | STO, not upgradable |
| Control panel | 2.8" OPX20 |
| Standard I/O | 4 x DI, 2 x DI/O, 2 x AI, 1 x AO, 2 x RO |
| Weight | approx. 13.86 kg |
| Dimensions (H × W × D) | approx. 399 × 165 × 295 mm |
| EMC Filter | Commercial |
The Danfoss 137U1951 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and production systems.
The drive is suitable for motors with a rated power of approximately 18.5 kW.
The 137U1951 operates from a three-phase 380–500 V AC supply.
This model includes PROFINET RT OS7PR communication for integration with industrial automation networks.
The drive includes integrated Safe Torque Off (STO) functional safety.
Danfoss iC7-Automation frequency converters are trusted by machine builders, OEMs and industrial engineers for reliable motor control, advanced connectivity and efficient performance in 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...