Danfoss 137U1878 iC7-Automation frequency converter, a three phase variable frequency drive with 5.6 A rated output current, 380–500 V AC input, PROFINET RT communication and integrated STO safety for industrial automation systems.
£1,454.40
The Danfoss 137U1878 is a high-performance iC7-Automation frequency converter designed for accurate control of three-phase AC motors in industrial automation and machinery applications. As part of the advanced Danfoss iC7-Automation drive series, it provides reliable speed and torque control, integrated safety functionality and flexible communication for modern production systems.
This drive is engineered for machine builders, OEMs and industrial automation engineers who require efficient motor control, network connectivity and dependable operation in control cabinet installations. Its air-cooled design, compact frame and standard I/O configuration make it suitable for a wide range of industrial machinery and process control applications.
With a rated output current of 5.6 A, a three-phase 380–500 V AC supply and PROFINET RT fieldbus support, the Danfoss 137U1878 is ideal for conveyors, pumps, fans, packaging machinery and automated production equipment. Its IP20 open-type enclosure is designed for installation inside electrical panels and machine cabinets.
Variable frequency drives such as the Danfoss 137U1878 control motor speed by adjusting output frequency and voltage. This allows machinery to run more efficiently, improves process control and helps reduce mechanical stress on motors, gearboxes and driven equipment.
The iC7-Automation platform is designed for connected industrial environments, combining precise motor control, network communication and integrated safety in a compact cabinet-mounted format. With PROFINET RT support and standard I/O, this drive can be integrated into modern automation architectures with ease.
| Power | 2.2 kW |
|---|---|
| Current | 5.6 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Part number | 137U1878 |
| Catalogue number | 7FC-AUFA3N05-05A6E20F2-000142246 |
| Product type | Frequency converter / variable frequency drive |
| Model code | IC7-60FA3N05-05A6E20F2+ACBC+ALDC+BAPR+BDBA+BEF1+BF20+CAM0+CBC0+DAAU+DD11 |
| Rated motor power | 2.2 kW |
| Rated output current | 5.6 A |
| Input voltage | 380–500 V AC |
| Input phases | Three-phase |
| Protection rating | IP20 / Open Type |
| Frame size | FA02b |
| Cooling method | Air cooled |
| EMC category | 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 |
| EMC Filter | Commercial |
The Danfoss 137U1878 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 2.2 kW.
The 137U1878 operates from a three-phase 380–500 V AC supply.
This model includes PROFINET RT OS7PR fieldbus support 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...