Danfoss 137N1856 iC7 Automation frequency converter with three-phase 380-500 V AC input, 38 A rated current, 18.5 kW power rating, IP20 open type enclosure, Modbus TCP communication and integrated Safe Torque Off functionality.
£3,412.00
The Danfoss 137N1856 is a powerful iC7 Automation frequency converter designed for precise and efficient control of three-phase AC motors in demanding industrial automation applications. As part of the advanced Danfoss iC7 Automation drive series, it provides reliable motor control, flexible connectivity and robust performance for machine builders, OEMs and industrial users.
This frequency converter combines accurate speed and torque control with modern communication functionality, helping improve process stability, machine productivity and energy efficiency. The iC7 Automation platform is engineered for integration into PLC-based systems, industrial networks and control cabinets where safety, performance and reliability are essential.
With a three-phase 380–500 V AC supply, 38 A current rating and 18.5 kW power rating, the Danfoss 137N1856 is suitable for larger industrial motors used in conveyors, pumps, fans, compressors, processing machinery and production equipment. Its IP20 open type construction and FA05b frame size make it ideal for cabinet and panel-mounted installations.
Frequency converters such as the Danfoss 137N1856 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This enables smoother acceleration and deceleration, improved process control, reduced mechanical stress and lower energy consumption across industrial machinery.
The Danfoss iC7 Automation platform is designed for modern automation systems where reliability, safety and connectivity are essential. With integrated STO, flexible I/O and Ethernet-based communication, the 137N1856 provides a robust motor control solution for demanding production environments and machine control panels.
| Power | 18.5 kW |
|---|---|
| Current | 38 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7 Automation |
| Catalogue number | 7FC-AUFA3N05-38A0E20F3-000131296 |
| Product type | Frequency converter |
| Cooling method | Air cooled |
| Input voltage | 380–500 V AC |
| Input phases | 3-phase |
| Power rating | 18.5 kW / 25 hp |
| Rated current | 38 A |
| Protection rating | IP20 / Open Type |
| Frame size | FA05b |
| EMC category | C3 |
| Control panel | Control Panel 2.8 OPX20 |
| Standard I/O | 4x DI, 2x DI/O, 2x AI, 1x AO, 2x RO |
| Fieldbus protocol | Modbus TCP OS7MT |
| Other protocol support | Ethernet port, no protocol |
| Functional safety | Safe Torque Off (STO), not upgradable |
| Mounting type | Cabinet / panel mounting |
| EMC Filter | Industrial |
The Danfoss 137N1856 is used to control the speed and torque of three-phase AC motors in industrial automation, machine building and production applications.
The drive operates from a three-phase 380–500 V AC supply.
The Danfoss 137N1856 has a rated current of 38 A.
This model has a power rating of 18.5 kW / 25 hp.
The drive has Modbus TCP OS7MT fieldbus protocol enabled and includes an Ethernet port.
Danfoss iC7 Automation frequency converters are widely used by automation engineers, machine builders and maintenance teams to deliver reliable motor control, efficient operation and seamless integration into modern industrial systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...