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137L2888 Danfoss 400kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L2888 iC7-Automation frequency converter with 736 A rated output current, three-phase 380-500 V AC supply, IP21 enclosure, STO safety and EtherNet/IP communication for industrial motor control applications.
£35,722.50
Why Choose the Danfoss 137L2888 iC7-Automation Frequency Converter?
The Danfoss 137L2888 is a powerful and highly reliable iC7-Automation frequency converter designed for precise speed and torque control of large three-phase AC motors in demanding industrial environments. As part of the advanced Danfoss iC7-Automation drive series, it is engineered for machine builders, OEMs and industrial automation specialists requiring flexible motor control, efficient performance and robust integration.
This drive combines high-power motor control with intelligent automation features, built-in safety functionality and industrial network connectivity. The iC7-Automation platform is designed to simplify commissioning, support modern control architectures and improve energy efficiency across a wide range of heavy-duty applications.
With a rated output current of 736 A and a three-phase 380–500 V AC supply, the Danfoss 137L2888 is suitable for large industrial motors used in pumps, fans, compressors, conveyors and process equipment. Its IP21 / UL Type 1 enclosure provides added protection for installation in industrial electrical rooms, cabinets and controlled environments.
Key Advantages
- High-performance frequency converter for industrial automation applications.
- 736 A rated output current suitable for large motor control systems.
- Three-phase 380–500 V AC input compatible with industrial power networks.
- IP21 / UL Type 1 enclosure for enhanced installation protection.
- Integrated Safe Torque Off (STO) safety function.
- Enabled EtherNet/IP fieldbus communication for automation networks.
- Efficient motor control helps improve productivity and reduce energy consumption.
Key Features
- Danfoss iC7-Automation frequency converter series.
- 736 A rated output current.
- Three-phase 380–500 V AC input supply.
- IP21 / UL Type 1 protection rating.
- EMC category C2.
- Integrated Safe Torque Off (STO) functionality.
- EtherNet/IP OS7IP fieldbus protocol enabled.
- Ethernet port for industrial communication.
- Standard I/O including digital and analogue inputs and outputs.
- OPX20 2.8-inch control panel.
- Air-cooled construction for industrial applications.
- Robust frame design for high-power motor control.
Advanced Motor Control for Industrial Automation
Frequency converters such as the Danfoss 137L2888 regulate motor speed by adjusting the output voltage and frequency supplied to an AC motor. This allows industrial equipment to operate with greater precision, improved energy efficiency and reduced mechanical stress.
The iC7-Automation series is designed for complex industrial systems that require dependable motor control, flexible communication and integration with PLCs and automation networks. Its built-in STO safety functionality and EtherNet/IP connectivity make it suitable for demanding modern production environments.
Typical Applications
- Large industrial pumps and pumping systems.
- Fans, blowers and ventilation equipment.
- Compressors and process machinery.
- Heavy-duty conveyors and material handling systems.
- Manufacturing and production lines.
- Water and wastewater treatment plants.
- OEM automation systems and machine building.
Technical Specifications
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| Power | 400 kW | |
|---|---|---|
| Current | 736 A | |
| Phase | Three Phase | |
| IP Rating | IP21 | |
| EMC Filter | Commercial | |
| Series | iC7-Automation | |
| Catalogue number | 7FC-AUFA3N05-736AE21F2-000120794 | |
| Product type | Frequency converter | |
| Rated output current | 736 A | |
| Input voltage | 380–500 V AC | |
| Input phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP21 / UL Type 1 | |
| EMC category | C2 | |
| Cooling method | Air cooled | |
| Frame size | FK113 | |
| Control panel | OPX20 2.8-inch | |
| Standard I/O | 4 x DI, 2 x DI/O, 2 x AI, 1 x AO, 2 x RO | |
| Fieldbus protocol | EtherNet/IP OS7IP | |
| Other communication | Ethernet port | |
| Functional safety | Safe Torque Off (STO) | |
| Mounting type | Industrial cabinet / enclosure mounting |
Frequently Asked Questions
What is the Danfoss 137L2888 used for?
The Danfoss 137L2888 is used to control the speed and torque of large three-phase AC motors in industrial automation, process control and machine building applications.
What current rating does this frequency converter provide?
The drive has a rated output current of approximately 736 A.
What supply voltage does the Danfoss 137L2888 require?
The Danfoss 137L2888 operates from a three-phase 380–500 V AC supply.
What enclosure protection does this model have?
This model is supplied with an IP21 / UL Type 1 enclosure, offering improved protection compared with open IP20 cabinet-mounted variants.
Does the drive support industrial communication networks?
Yes, the drive supports EtherNet/IP OS7IP and includes an Ethernet communication port for integration with automation systems.
Trusted by Industrial Automation Professionals
Danfoss iC7-Automation frequency converters are trusted by engineers, OEMs and industrial automation specialists for reliable motor control, efficient operation and seamless integration into demanding production systems.
