Danfoss 137U8778 iC7-Automation enclosed variable frequency drive, 400 kW low-harmonic AC drive with Modbus TCP communication, IP21 enclosure and 380-500 V AC operation.
£72,328.80
The Danfoss 137U8778 is a high-power iC7-Automation enclosed variable frequency drive (VFD) designed for precise speed and torque control of large three-phase AC motors in demanding industrial automation and process applications. As part of the advanced Danfoss iC7-Automation enclosed drive series, it is engineered for installations requiring dependable motor control, efficient operation and robust integration into modern industrial systems.
This enclosed drive combines low-harmonic drive technology, configurable cabinet options and industrial-grade construction to support reliable operation in heavy-duty environments. The iC7 enclosed drive platform is designed for demanding applications and is available with configurable cabinet features, making it suitable for machine builders, system integrators and plant engineers.
With a rated output power of 400 kW / 550 HP, a three-phase 380-500 V AC supply and a 730 A current rating, the Danfoss 137U8778 is ideal for large pumps, fans, compressors, conveyors and process machinery. Its IP21 / UL Type 1 enclosure, Modbus TCP communication and coated boards make it suitable for protected industrial installations.
Variable frequency drives such as the Danfoss 137U8778 regulate motor speed and torque by adjusting output voltage and frequency. This helps large industrial motors operate efficiently while improving process control, reducing mechanical stress and supporting smoother machine performance.
The Danfoss iC7-Automation enclosed drive platform is built for industrial environments where high power capacity, connectivity and power quality are important. Its low-harmonic design helps reduce electrical network distortion, supporting reliable operation in demanding plant and process systems.
| Power | 400 kW |
|---|---|
| Current | 730 A |
| Voltage | 500 V |
| Phase | Three Phase |
| IP Rating | IP21 |
| Series | iC7-Automation Enclosed Drives |
| Model code | IC7-60EA3H05-730AE21F3+BAMT+BEF2+CAC0+CBC1+CCC1+CDC1+CEC1+DAAU+EGXX+GACO+IFCS+IHAS+MAC2 |
| Product type | Enclosed AC variable frequency drive |
| Drive category | Air-cooled enclosed drive |
| Rated output power | 400 kW / 550 HP |
| Rated current | 730 A |
| Input voltage | 380-500 V AC |
| Input phases | 3-phase |
| Drive type | Low-harmonic drive |
| Protection rating | IP21 / UL Type 1 |
| EMC category | C3 |
| Communication protocol | Modbus TCP |
| Communication interface | Modbus TCP OS7MT |
| Environmental protection | Coated boards |
| Integrated brake chopper | None |
| Cooling | Air cooled |
| Net weight | approx. 987.9 kg |
| Gross weight | approx. 1117.9 kg |
| EAN | 5715253772967 |
The Danfoss 137U8778 is used to control large three-phase AC motors in demanding industrial automation, process control and heavy machinery applications.
This enclosed drive is rated for 400 kW / 550 HP motor applications.
The Danfoss 137U8778 operates from a three-phase 380-500 V AC supply.
This model includes Modbus TCP communication for integration with industrial automation and control networks.
The drive has an IP21 / UL Type 1 enclosure rating for protected industrial installation.
Danfoss iC7-Automation enclosed drives are trusted by engineers, OEM machine builders and industrial operators for efficient high-power motor control, flexible connectivity and reliable performance in demanding industrial applications.
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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...