Danfoss 137N3934 iC7-Automation frequency converter, an air-cooled 480 A three phase variable frequency drive with 380-500 V AC input, Modbus TCP communication, STO safety and IP54 / UL Type 12 protection.
£24,492.00
The Danfoss 137N3934 is a high-performance iC7-Automation frequency converter designed for demanding industrial automation and precision motor control applications. As part of the advanced Danfoss iC7-Automation drive series, it delivers reliable speed control, efficient torque management and flexible integration into modern industrial control systems.
This air-cooled drive is engineered for automation environments where connectivity, safety and dependable performance are essential. With industrial Ethernet communication, standard I/O, integrated functional safety and a robust protected enclosure, the Danfoss 137N3934 supports efficient motor-driven operation across machinery, process and factory automation applications.
The Danfoss 137N3934 features a three-phase 380-500 V AC supply, 480 A output current, IP54 / UL Type 12 enclosure protection and Modbus TCP fieldbus communication. Its Safe Torque Off (STO) safety function and robust FB10C frame make it suitable for demanding high-power industrial drive installations.
Frequency converters such as the Danfoss 137N3934 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This enables improved process control, reduced mechanical stress and more efficient operation across demanding industrial applications.
The iC7-Automation platform is designed for modern automation systems where performance, connectivity and safety are critical. With Modbus TCP communication, Ethernet support and integrated STO functionality, this drive can be integrated into PLC-based systems, production equipment and high-power industrial drive networks.
| Power | 250 kW |
|---|---|
| Current | 480 A |
| Phase | Three Phase |
| IP Rating | IP54 |
| Series | iC7-Automation |
| Part number | 137N3934 |
| Catalog number | 7FC-AUFA3N05-480AE54F3-000133470 |
| Product type | Frequency converter / Variable frequency drive |
| Model code | IC7-60FA3N05-480AE54F3 |
| Input voltage | 380-500 V AC |
| Input phases | 3-phase |
| Output current | 480 A |
| Cooling method | Air-cooled |
| Protection rating | IP54 / UL Type 12 |
| Frame size | FB10C |
| EMC category | C3 |
| Control panel | Control Panel 2.8 OPX20 |
| Fieldbus protocol | Modbus TCP OS7MT |
| Other protocol support | Ethernet port, no protocol |
| Standard I/O | 4x DI, 2x DI/O, 2x AI, 1x AO, 2x RO |
| Functional safety | STO, not upgradable |
| EMC Filter | Industrial |
The Danfoss 137N3934 is used to control the speed and torque of AC motors in industrial automation, machinery and process control applications.
The drive provides a rated output current of 480 A, making it suitable for demanding high-power motor control applications.
The 137N3934 operates from a three-phase 380-500 V AC supply.
The drive includes Modbus TCP OS7MT fieldbus communication and Ethernet port support for industrial network integration.
Yes, the Danfoss 137N3934 includes integrated Safe Torque Off (STO) functional safety.
Danfoss iC7-Automation frequency converters are trusted by engineers, system integrators and industrial operators for reliable motor control, advanced connectivity and dependable performance in demanding automation environments.
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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...