Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
137U8661 Danfoss 710kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U8661 iC7-Automation frequency converter with 1260 A current rating, 380-500 V AC three phase input, Modbus TCP communication and integrated STO safety for high-power industrial motor control.
£75,621.75
Why Choose the Danfoss 137U8661 iC7-Automation Frequency Converter?
The Danfoss 137U8661 is a high-power iC7-Automation frequency converter designed for demanding industrial motor control applications where reliability, scalability and precise speed regulation are essential. As part of the advanced Danfoss iC7-Automation series, it supports modern automation systems with powerful drive performance, flexible connectivity and integrated safety functionality.
This air-cooled frequency converter is engineered for integration into industrial machinery, process systems and large-scale drive installations. Its robust IP54 / UL Type 12 enclosure rating provides enhanced protection for challenging environments, while the modular iC7 platform enables efficient configuration and dependable long-term operation.
With a three-phase 380–500 V AC supply and a substantial 1260 A current rating, the Danfoss 137U8661 is suitable for large motors and heavy-duty industrial processes. It includes Modbus TCP fieldbus communication, Ethernet connectivity, standard I/O and integrated Safe Torque Off (STO) functionality for safer motor control.
Key Advantages
- High-power iC7-Automation frequency converter for demanding industrial applications.
- 1260 A current rating suitable for large motor drive systems.
- Three-phase 380–500 V AC input for industrial power networks.
- IP54 / UL Type 12 enclosure for improved environmental protection.
- Integrated Safe Torque Off (STO) functional safety.
- Modbus TCP fieldbus support for automation network integration.
- Standard I/O for flexible machine and process control.
Key Features
- Danfoss iC7-Automation series.
- Air-cooled frequency converter.
- 1260 A current rating.
- Three-phase 380–500 V AC input supply.
- IP54 / UL Type 12 protection rating.
- Frame size FB12.
- EMC category C3.
- Modbus TCP OS7MT fieldbus protocol enabled.
- Ethernet port included.
- Control Panel 2.8 OPX20.
- Standard I/O: 4 digital inputs, 2 digital input/outputs, 2 analogue inputs, 1 analogue output and 2 relay outputs.
- Integrated STO functional safety.
Reliable High-Power Motor Control
Frequency converters such as the Danfoss 137U8661 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This helps improve process control, optimise energy usage and reduce mechanical stress across industrial drive systems.
The iC7-Automation platform is designed for flexible integration into modern control architectures. With high current capacity, industrial communication, standard I/O and integrated safety functionality, the 137U8661 supports dependable operation in demanding high-power applications.
Typical Applications
- Large industrial motor control systems.
- Heavy-duty pumps and compressors.
- Industrial fans and ventilation systems.
- Process automation equipment.
- Material handling and conveyor systems.
- Manufacturing and production machinery.
- Infrastructure and energy-intensive drive applications.
Technical Specifications
Tick the specs you need, then view products that match.
| Power | 710 kW | |
|---|---|---|
| Current | 1260 A | |
| Phase | Three Phase | |
| IP Rating | IP54 | |
| EMC Filter | Industrial | |
| Series | iC7-Automation | |
| Part Number | 137U8661 | |
| Model Code | IC7-60FA3N05-1260E54F3+AGCX+AJFD+AMMX+BAMT+BDBA+BEF1+BF20+CAC0+DAAU | |
| Product type | AC frequency converter | |
| Input voltage | 380–500 V AC | |
| Input phases | Three-phase | |
| Current rating | 1260 A | |
| Cooling method | Air cooled | |
| Protection rating | IP54 / UL Type 12 | |
| Frame size | FB12 | |
| EMC category | C3 | |
| Fieldbus protocol | Modbus TCP OS7MT | |
| Other connectivity | Ethernet port, no protocol | |
| Functional safety | STO, not upgradable | |
| Control panel | Control Panel 2.8 OPX20 | |
| Standard I/O | 4xDI, 2xDI/O, 2xAI, 1xAO, 2xRO |
Frequently Asked Questions
What is the Danfoss 137U8661 used for?
The Danfoss 137U8661 is used to control large three-phase AC motors in industrial automation, process control and high-power machinery applications.
What supply voltage does this frequency converter require?
The unit operates from a three-phase 380–500 V AC supply.
What current rating does the Danfoss 137U8661 provide?
The frequency converter has a 1260 A current rating.
Which communication protocol is included?
This model includes Modbus TCP OS7MT fieldbus communication and an Ethernet port for automation system integration.
What safety function is included?
The Danfoss 137U8661 includes integrated Safe Torque Off (STO) functional safety.
Trusted by High-Power Automation Engineers
Danfoss iC7-Automation frequency converters are trusted by industrial engineers, system integrators and machine builders for powerful motor control, reliable communication and efficient operation in demanding automation environments.
