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137U1951 Danfoss 18.5kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U1951 iC7-Automation frequency converter, a three phase variable frequency drive with 38 A rated output current, 380–500 V AC input, PROFINET RT communication and integrated STO safety for industrial automation systems.
£3,693.75
Why Choose the Danfoss 137U1951 iC7-Automation Frequency Converter?
The Danfoss 137U1951 is a powerful iC7-Automation frequency converter designed for precise speed and torque control of three-phase AC motors in demanding industrial automation systems. As part of the advanced Danfoss iC7-Automation drive series, it delivers reliable motor control, flexible connectivity and integrated safety functionality for modern machinery and production environments.
Engineered for machine builders, OEMs and automation engineers, this air-cooled frequency converter combines robust industrial performance with compact cabinet installation. Its standard I/O, PROFINET RT communication and integrated OPX20 control panel support efficient commissioning and seamless integration into automation networks.
With a rated output current of 38 A, a three-phase 380–500 V AC supply and an IP20 open-type enclosure, the Danfoss 137U1951 is ideal for conveyors, pumps, fans, packaging machinery, processing equipment and automated production systems. Its FA05b frame is designed for installation inside electrical control cabinets and machine panels.
Key Advantages
- Advanced iC7-Automation variable frequency drive for industrial motor control.
- 38 A rated output current for demanding automation applications.
- Three-phase 380–500 V AC input for industrial power systems.
- Integrated PROFINET RT communication for automation networks.
- Built-in Safe Torque Off (STO) functional safety.
- Standard I/O configuration for flexible control system integration.
- Control Panel 2.8 OPX20 interface for commissioning and operation.
- Compact IP20 open-type format for cabinet mounting.
Key Features
- Danfoss iC7-Automation frequency converter series.
- 18.5 kW motor power rating.
- 38 A rated output current.
- Three-phase 380–500 V AC input supply.
- PROFINET RT OS7PR fieldbus protocol enabled.
- Ethernet port with no additional protocol enabled.
- Integrated Safe Torque Off (STO) safety function.
- Standard I/O: 4 x DI, 2 x DI/O, 2 x AI, 1 x AO, 2 x RO.
- Control Panel 2.8 OPX20 included.
- Air-cooled IP20 open-type enclosure.
- EMC Category C1 and C2 compliance.
- Frame size FA05b for industrial panel installation.
Reliable Motor Control for Industrial Automation
Variable frequency drives such as the Danfoss 137U1951 regulate motor speed by adjusting output frequency and voltage. This helps improve process accuracy, reduce mechanical stress and support efficient operation across industrial machinery and production systems.
The iC7-Automation platform is designed for connected industrial environments, combining precise motor control with communication, diagnostics and integrated safety. With PROFINET RT support and standard I/O, this drive can be integrated into modern automation systems with minimal complexity.
Typical Applications
- Industrial conveyors and material handling systems.
- Packaging and processing machinery.
- Pumps, fans and ventilation equipment.
- Automated production and assembly lines.
- Machine building and OEM control panels.
- Factory automation systems.
- Industrial motion and process control applications.
- Machinery requiring networked variable speed motor control.
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 | |
| Part number | 137U1951 | |
| Catalogue number | 7FC-AUFA3N05-38A0E20F1-000142344 | |
| Product type | Frequency converter / variable frequency drive | |
| Model code | IC7-60FA3N05-38A0E20F1+ACBC+AGCX+ALDC+BAPR+BDBA+BEF1+BF20+CAC0+CBX0+DAAU | |
| Rated motor power | 18.5 kW | |
| Rated output current | 38 A | |
| Input voltage | 380–500 V AC | |
| Input phases | Three-phase | |
| Protection rating | IP20 / Open Type | |
| Frame size | FA05b | |
| Cooling method | Air cooled | |
| EMC category | C1 and C2 | |
| Fieldbus | PROFINET RT OS7PR | |
| Other protocols | Ethernet port, no protocol | |
| Functional safety | STO, not upgradable | |
| Control panel | 2.8" OPX20 | |
| Standard I/O | 4 x DI, 2 x DI/O, 2 x AI, 1 x AO, 2 x RO | |
| Weight | approx. 13.86 kg | |
| Dimensions (H × W × D) | approx. 399 × 165 × 295 mm |
Frequently Asked Questions
What is the Danfoss 137U1951 used for?
The Danfoss 137U1951 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and production systems.
What motor power is supported by this drive?
The drive is suitable for motors with a rated power of approximately 18.5 kW.
What supply voltage does the drive require?
The 137U1951 operates from a three-phase 380–500 V AC supply.
Which communication protocol is included?
This model includes PROFINET RT OS7PR communication for integration with industrial automation networks.
What safety function is included?
The drive includes integrated Safe Torque Off (STO) functional safety.
Trusted by Industrial Automation Professionals
Danfoss iC7-Automation frequency converters are trusted by machine builders, OEMs and industrial engineers for reliable motor control, advanced connectivity and efficient performance in modern automation systems.
