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137U6491 Danfoss 630kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U6491 iC7-Automation air-cooled frequency converter featuring 630 kW output power, 1120 A current rating, Modbus TCP communication and IP54 enclosure protection for demanding industrial motor control applications.
£67,576.50
Why Choose the Danfoss 137U6491 iC7-Automation Frequency Converter?
The Danfoss 137U6491 is a powerful iC7-Automation air-cooled frequency converter engineered for demanding industrial automation, process control and heavy-duty motor drive applications. As part of the advanced Danfoss iC7-Automation series, it delivers precise motor control, integrated communication capabilities and dependable operation in challenging industrial environments.
Designed for industrial engineers, OEMs and system integrators, the iC7-Automation platform combines advanced motor performance with Industrial IoT-ready connectivity and a highly efficient drive architecture. The enclosed design provides enhanced environmental protection while maintaining easy integration into modern automation systems.
With a rated output of 630 kW (900 hp), a 1120 A current rating and operation from a three-phase 380–500 V AC supply, the 137U6491 is ideal for large pumps, compressors, conveyors, fans and high-power industrial process applications requiring reliable variable speed motor control.
Key Advantages
- High-power 630 kW industrial frequency converter.
- 1120 A continuous current rating for demanding applications.
- IP54 / UL Type 12 enclosure for enhanced environmental protection.
- Modbus TCP communication for seamless automation integration.
- Integrated Safe Torque Off (STO) safety functionality.
- Industrial IoT-ready architecture with advanced connectivity.
- Optimised for high-efficiency motor control and reduced energy consumption.
Key Features
- Danfoss iC7-Automation series.
- 630 kW (900 hp) typical motor power.
- 1120 A current rating.
- Three-phase 380–500 V AC supply.
- IP54 / UL Type 12 enclosed construction.
- Modbus TCP OS7MT fieldbus communication.
- Ethernet port for network connectivity.
- Integrated Safe Torque Off (STO) functionality.
- Control Panel 2.8 OPX20 included.
- Standard I/O: 4xDI, 2xDI/O, 2xAI, 1xAO and 2xRO.
- Coated control boards for increased reliability.
- EMC Category C3 compliance.
Advanced High-Power Drive Technology
The Danfoss iC7-Automation platform is designed to provide exceptional motor performance, even in demanding industrial environments. By precisely regulating motor speed and torque, the drive helps improve process efficiency, reduce energy consumption and minimise mechanical stress on connected equipment.
Its integrated Ethernet connectivity, industrial communication capabilities and robust enclosure design make the 137U6491 a suitable solution for mission-critical industrial processes requiring high reliability and operational uptime.
Typical Applications
- Large industrial pump systems.
- Process compressors and blowers.
- Heavy-duty conveyor systems.
- Manufacturing and production plants.
- Water and wastewater treatment facilities.
- Mining and material processing equipment.
- Power generation support systems.
- Industrial HVAC and ventilation applications.
Technical Specifications
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| Power | 630 kW | |
|---|---|---|
| Current | 1120 A | |
| Phase | Three Phase | |
| IP Rating | IP54 | |
| EMC Filter | Industrial | |
| Series | iC7-Automation | |
| Part Number | 137U6491 | |
| Product Type | Air-cooled frequency converter | |
| Rated Power | 630 kW (900 hp) | |
| Current Rating | 1120 A | |
| Input Voltage | 380–500 V AC | |
| Input Phases | 3-phase | |
| Input Frequency | 50 / 60 Hz | |
| Output Frequency | 0–590 Hz | |
| Protection Rating | IP54 / UL Type 12 | |
| Frame Size | FB12 | |
| Communication Protocol | Modbus TCP OS7MT | |
| Safety Function | STO (not upgradable) | |
| Dimensions (H × W × D) | approx. 2044 × 698 × 510 mm | |
| Net Weight | approx. 297.1 kg |
Frequently Asked Questions
What is the Danfoss 137U6491 used for?
The Danfoss 137U6491 is used to control large three-phase AC motors in industrial automation, process control and heavy-duty drive applications.
What motor power can this drive support?
This model supports applications up to approximately 630 kW (900 hp) under standard operating conditions.
What communication protocol is included?
The drive includes Modbus TCP OS7MT communication for integration with industrial automation and PLC systems.
What safety function is included?
The drive includes integrated Safe Torque Off (STO) functionality for enhanced operational safety.
What protection rating does the enclosure provide?
The Danfoss 137U6491 features an IP54 / UL Type 12 enclosure, helping protect the drive against dust and environmental contaminants.
Trusted by Industrial Automation Professionals
Danfoss iC7-Automation frequency converters are trusted worldwide for delivering powerful motor control, advanced connectivity and reliable operation across demanding industrial applications.
