Danfoss 137U2740 iC7 Automation frequency converter, an air-cooled three phase 380-500 V AC variable frequency drive with 90 A rating, IP20/Open Type enclosure, Modbus TCP and integrated STO functional safety.
£7,483.20
The Danfoss 137U2740 is a high-performance iC7 Automation frequency converter designed for precise speed and torque control of AC motors in demanding industrial automation, machinery and process control applications. Manufactured by Danfoss Drives, this advanced variable frequency drive supports efficient motor operation, reliable performance and seamless integration into modern control systems.
As part of the Danfoss iC7 Automation drive series, the 137U2740 is engineered for industrial environments where flexibility, communication and functional safety are essential. Its robust air-cooled design, integrated I/O and fieldbus capability make it suitable for OEM machinery, control panels and automation upgrades.
With a three-phase 380–500 V AC supply, 90 A rated current and IP20/Open Type enclosure, the Danfoss 137U2740 is ideal for cabinet-mounted installations requiring dependable higher-current variable speed motor control.
Frequency converters such as the Danfoss 137U2740 regulate motor speed by adjusting the frequency and voltage supplied to the motor. This allows machinery to run at the correct speed for the process, helping improve control accuracy, reduce mechanical stress and support energy-efficient operation.
The iC7 Automation platform is designed for industrial applications where performance, connectivity and safety are essential. With built-in I/O, Modbus TCP capability and integrated STO safety, the 137U2740 is well suited to modern machine control panels and automated production systems.
| Power | 45 kW |
|---|---|
| Current | 90 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Brand | Danfoss |
| Series | iC7 Automation |
| Catalogue number | 7FC-AUFA3N05-90A0E20F1-000143336 |
| Model code | IC7-60FA3N05-90A0E20F1+AGCX+BAMT+BDBA+BEF1+BF20+CAC0+CCR0+DAAU |
| Product type | Frequency converter / variable frequency drive |
| Cooling method | Air cooled |
| Input voltage | 380–500 V AC |
| Input phases | 3-phase |
| Rated current | 90 A |
| Protection rating | IP20 / Open Type |
| Frame size | FA07 |
| EMC category | C1 and C2 |
| Control panel | Control Panel 2.8 OPX20 |
| Standard I/O | 4×DI, 2×DI/O, 2×AI, 1×AO, 2×RO |
| Fieldbus protocols | Modbus TCP OS7MT |
| Other protocols | Ethernet port, no protocol |
| Functional safety | STO, not upgradable |
| EMC Filter | Commercial |
The Danfoss 137U2740 is used to control the speed and torque of AC motors in industrial automation, machinery and process control applications.
The 137U2740 operates from a three-phase 380–500 V AC supply.
The Danfoss 137U2740 has a rated current of 90 A.
The drive includes Modbus TCP OS7MT fieldbus protocol support, with an Ethernet port available.
The Danfoss 137U2740 includes Safe Torque Off (STO) functional safety, listed as not upgradable.
Danfoss iC7 Automation frequency converters are used by machine builders, maintenance teams and automation engineers to deliver reliable motor control, flexible system integration and efficient industrial performance.
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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...