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.
137U6903 Danfoss 18.5kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U6903 iC7-Automation variable speed drive with 38 A rated current, 380-500 V AC three-phase input, IP20 / UL Open Type protection, PROFINET RT communication and integrated STO, SS1-t and fieldbus safety functionality.
£3,811.50
Why Choose the Danfoss 137U6903 iC7-Automation Variable Speed Drive?
The Danfoss 137U6903 is a compact and efficient iC7-Automation variable speed drive designed for reliable three-phase motor control in industrial automation systems. As part of the advanced Danfoss iC7-Automation frequency converter series, it provides accurate speed and torque regulation for machinery, process equipment and panel-mounted control applications.
This air-cooled frequency converter is engineered for dependable operation, flexible commissioning and seamless integration into modern automation systems. With coated boards, integrated functional safety and PROFINET communication, the Danfoss 137U6903 is well suited to machine builders, maintenance engineers and industrial control panel installations.
With a rated current of 38 A and a three-phase 380-500 V AC supply, the 137U6903 is designed for medium-power industrial motor applications. Its IP20 / UL Open Type enclosure and FA05b frame make it suitable for cabinet or panel mounting in protected electrical installations.
Key Advantages
- Compact variable speed drive for industrial automation.
- 38 A rated current suitable for medium-duty motor control.
- Three-phase 380-500 V AC input for standard industrial power systems.
- Integrated Safe Torque Off (STO) safety functionality.
- SS1-t and fieldbus safety functions for enhanced machine safety.
- PROFINET RT OS7PR communication for automation network integration.
- EMC category C1 and C2 configuration for improved electromagnetic compatibility.
- Panel-mounted IP20 / UL Open Type design.
Key Features
- Danfoss iC7-Automation frequency converter series.
- 38 A rated output current.
- Three-phase 380-500 V AC input supply.
- Air-cooled variable speed drive design.
- IP20 / UL Open Type enclosure rating.
- FA05b frame size.
- EMC category C1 and C2.
- PROFINET RT OS7PR fieldbus communication.
- Integrated Ethernet port with no additional protocol enabled.
- Standard I/O: 4 x DI, 2 x DI/O, 2 x AI, 1 x AO, 2 x RO.
- Integrated Safe Torque Off (STO) functionality.
- SS1-t and fieldbus safety support.
- Control Panel 2.8 OPX20 included.
Efficient Motor Control for Industrial Panels
Variable speed drives such as the Danfoss 137U6903 regulate motor speed by controlling output voltage and frequency. This helps improve process accuracy, reduce energy consumption and minimise mechanical stress on motors, pumps, fans, conveyors and production equipment.
The iC7-Automation platform is designed for modern industrial automation environments where reliable operation, flexible communication and functional safety are essential. Its PROFINET RT support, integrated STO and SS1-t safety functionality and cabinet-mounted format make it suitable for new installations and replacement drive projects.
Typical Applications
- Industrial conveyors and material handling systems.
- Pumps, fans and ventilation equipment.
- Packaging and production machinery.
- Process automation systems.
- Machine building and OEM control panels.
- Industrial HVAC systems.
- Mixers and processing equipment.
- General three-phase motor speed control.
Technical Specifications
Tick the specs you need, then view products that match.
| Power | 18.5 kW | |
|---|---|---|
| Current | 38 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Commercial | |
| Series | iC7-Automation | |
| Catalogue number | 7FC-AUFA3N05-38A0E20F1-000152098 | |
| Product type | Variable speed drive / frequency converter | |
| Drive type | Air-cooled AC variable frequency drive | |
| Model code | IC7-60FA3N05-38A0E20F1+ACBC+ALDC+BAPR+BDBA+BEF2+BF20+CAM0+CBX0+DAAU+DD11 | |
| Rated current | 38 A | |
| Input voltage | 380-500 V AC | |
| Input phases | 3-phase | |
| Protection rating | IP20 / UL Open Type | |
| Frame size | FA05b | |
| EMC category | C1 and C2 | |
| Fieldbus | PROFINET RT OS7PR | |
| Other communication | Ethernet port, no protocol | |
| Functional safety | STO, SS1-t, fieldbus | |
| Control panel | 2.8 OPX20 | |
| Standard digital inputs | 4 x DI | |
| Standard digital I/O | 2 x DI/O | |
| Standard analogue inputs | 2 x AI | |
| Standard analogue output | 1 x AO | |
| Relay outputs | 2 x RO | |
| Mounting type | Panel / cabinet mounting |
Frequently Asked Questions
What is the Danfoss 137U6903 used for?
The Danfoss 137U6903 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
What current rating does this drive provide?
This model provides a rated output current of 38 A.
What supply voltage does the 137U6903 require?
The drive operates from a three-phase 380-500 V AC supply.
Which communication protocol is included?
The Danfoss 137U6903 supports PROFINET RT OS7PR fieldbus communication and also includes an Ethernet port.
What safety functions are included?
The drive includes Safe Torque Off (STO), SS1-t and fieldbus safety functionality to support safer machine operation.
Trusted by Automation and Maintenance Engineers
Danfoss iC7-Automation drives are trusted for dependable motor control, flexible communication and efficient operation across modern industrial automation systems.
