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137U8778 Danfoss iC7-Automation 400kW/550 3 phase low-harmonic drive
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.
£67,808.25
Why Choose the Danfoss 137U8778 iC7-Automation Enclosed Drive?
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.
Key Advantages
- High-power enclosed variable frequency drive for industrial automation.
- 400 kW / 550 HP power rating for large motor applications.
- 730 A current rating suitable for demanding heavy-duty systems.
- Three-phase 380-500 V AC input for industrial power networks.
- Low-harmonic drive design helps improve power quality.
- IP21 / UL Type 1 enclosure for protected cabinet installation.
- Modbus TCP communication for automation and control network integration.
- Coated boards provide additional protection for industrial environments.
Key Features
- Danfoss iC7-Automation enclosed drive series.
- 400 kW / 550 HP rated output power.
- 730 A rated current.
- Three-phase 380-500 V AC input supply.
- Low-harmonic enclosed drive configuration.
- IP21 / UL Type 1 protection rating.
- EMC Category C3.
- Modbus TCP OS7MT communication interface.
- Coated boards for extra environmental protection.
- Control Panel 2.8 OPX20 operator interface.
- 24 VDC control power supply.
- Air-cooled enclosed cabinet construction.
Reliable Motor Control for Heavy Industrial Systems
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.
Typical Applications
- Large industrial pumps and pumping stations.
- Fans, blowers and ventilation systems.
- Compressors and process machinery.
- Material handling and conveyor systems.
- Water and wastewater treatment plants.
- Manufacturing and production lines.
- Mining, minerals and heavy industrial equipment.
- Process automation and plant engineering systems.
Technical Specifications
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| 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 |
Frequently Asked Questions
What is the Danfoss 137U8778 used for?
The Danfoss 137U8778 is used to control large three-phase AC motors in demanding industrial automation, process control and heavy machinery applications.
What motor power is supported by this drive?
This enclosed drive is rated for 400 kW / 550 HP motor applications.
What supply voltage does the drive require?
The Danfoss 137U8778 operates from a three-phase 380-500 V AC supply.
What communication protocol is included?
This model includes Modbus TCP communication for integration with industrial automation and control networks.
What enclosure rating does this drive have?
The drive has an IP21 / UL Type 1 enclosure rating for protected industrial installation.
Trusted by Industrial Automation Professionals
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.
