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137U4357 Danfoss 18.5kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U4357 iC7-Automation variable speed drive, a three-phase frequency converter with 380–500 V AC input, 38 A output current, EtherNet/IP communication and integrated Safe Torque Off functionality.
£3,603.00
Why Choose the Danfoss 137U4357 iC7-Automation Drive?
The Danfoss 137U4357 is a high-performance iC7-Automation variable speed drive (VSD) designed for precise motor control in demanding industrial automation and machine building applications. As part of the advanced Danfoss iC7-Automation frequency converter series, it provides reliable speed and torque control for three-phase AC motors while supporting modern industrial connectivity and machine safety requirements.
This frequency converter is engineered for machine builders, panel builders and automation engineers who require efficient operation, flexible integration and dependable uptime. The iC7-Automation platform combines intelligent motor control, configurable I/O, embedded communication capability and functional safety to simplify system design and improve machine productivity.
With a rated output current of 38 A and a three-phase 380–500 V AC supply, the Danfoss 137U4357 is suitable for industrial motor applications including conveyors, packaging machinery, pumps, fans and automated production equipment. Its IP20 open-type construction is designed for installation inside control panels and machine cabinets.
Key Advantages
- Advanced variable speed drive for industrial automation applications.
- 38 A rated output current for reliable motor control.
- Three-phase 380–500 V AC input for industrial power networks.
- Integrated Safe Torque Off (STO) functional safety.
- EtherNet/IP communication for automation network integration.
- IP20 open-type format for control cabinet installation.
- Efficient motor control helps improve performance and reduce mechanical wear.
Key Features
- Danfoss iC7-Automation frequency converter series.
- 38 A rated output current.
- Three-phase 380–500 V AC input supply.
- Integrated Safe Torque Off (STO) functionality.
- EtherNet/IP OS7IP fieldbus communication.
- Standard I/O including 4 DI, 2 DI/O, 2 AI, 1 AO and 2 RO.
- Control Panel 2.8 OPX20 included.
- EMC categories C1 and C2.
- Air-cooled IP20 / open-type construction.
- Configurable platform for demanding automation applications.
Advanced Motor Control for Industrial Automation
Variable speed drives such as the Danfoss 137U4357 regulate motor speed by adjusting output voltage and frequency. This enables smooth acceleration, accurate process control and reduced mechanical stress on motors, gearboxes and driven machinery.
The iC7-Automation platform is designed for modern industrial environments where precision, connectivity and uptime are essential. Its integrated I/O, Ethernet communication and safety features allow straightforward integration with PLCs, HMIs and wider automation systems.
Typical Applications
- Industrial conveyors and material handling systems.
- Packaging and production machinery.
- Pumps, fans and ventilation equipment.
- Mixers and processing machinery.
- Automated assembly systems.
- OEM machine building and panel integration.
- Industrial automation and control systems.
Technical Specifications
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| Power | 18.5 kW | |
|---|---|---|
| Current | 38 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Commercial | |
| Series | iC7-Automation | |
| Catalogue number | 7FC-AUFA3N05-38A0E20F1-000145477 | |
| Product type | Variable speed drive / frequency converter | |
| Rated output current | 38 A | |
| Input voltage | 380–500 V AC | |
| Input phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 / open type | |
| Mounting type | Panel / cabinet mounting | |
| Frame size | FA05b | |
| Cooling method | Air cooled | |
| EMC category | C1 and C2 | |
| Communication protocol | EtherNet/IP OS7IP | |
| Other protocol interface | Ethernet port, no protocol | |
| Functional safety | STO, not upgradeable | |
| Control panel | Control Panel 2.8 OPX20 |
Frequently Asked Questions
What is the Danfoss 137U4357 used for?
The Danfoss 137U4357 is used to control the speed and torque of three-phase AC motors in industrial automation, production machinery and OEM machine building applications.
What output current does this drive provide?
This model provides a rated output current of approximately 38 A.
What supply voltage does the Danfoss 137U4357 require?
The drive operates from a three-phase 380–500 V AC supply.
Does this drive include safety functionality?
Yes. The Danfoss 137U4357 includes integrated Safe Torque Off (STO) functionality for machine safety applications.
Where is this drive typically installed?
The IP20 open-type design is intended for installation inside electrical control panels or machine cabinets.
Trusted by Automation Engineers Worldwide
Danfoss iC7-Automation drives are trusted by machine builders, panel builders and industrial automation engineers for dependable motor control, flexible connectivity and efficient operation in demanding industrial environments.
