Danfoss 137N9128 iC7-Automation air-cooled frequency converter with 385 A output current, three-phase 380-500 V AC supply, EtherNet/IP communication, Safe Torque Off functionality and IP21 / UL Type 1 protection.
£19,888.80
The Danfoss 137N9128 is a high-performance iC7-Automation frequency converter designed for demanding industrial motor control applications requiring precise speed regulation, robust protection and advanced automation connectivity. Built as an air-cooled variable frequency drive, it delivers reliable control for large three-phase motors used across process, manufacturing and infrastructure environments.
As part of the Danfoss iC7-Automation series, this frequency converter combines efficient power conversion with flexible communication and control features. Its EtherNet/IP fieldbus capability, Ethernet connectivity and standard I/O configuration make it suitable for integration into PLC-based systems and modern industrial networks.
With a 380–500 V AC three-phase supply and a 385 A output current rating, the 137N9128 is ideal for high-capacity machinery, pumps, fans, conveyors and production systems. The IP21 / UL Type 1 enclosure provides practical protection for industrial installations while supporting straightforward cabinet or plant-room integration.
Frequency converters such as the Danfoss 137N9128 regulate motor speed by adjusting output voltage and frequency. This allows industrial equipment to operate more efficiently, improve process accuracy and reduce mechanical stress on motors, pumps, fans and connected machinery.
The iC7-Automation platform is designed for demanding automation environments where precise control, robust connectivity and dependable operation are essential. With EtherNet/IP communication, standard I/O and integrated safety functionality, the 137N9128 supports straightforward integration into modern industrial control systems.
| Power | 200 kW |
|---|---|
| Current | 385 A |
| Phase | Three Phase |
| IP Rating | IP21 |
| Series | iC7-Automation |
| Product type | Frequency converter / variable frequency drive |
| Catalogue number | 7FC-AUFA3N05-385AE21F2-000138800 |
| Model code | IC7-60FA3N05-385AE21F2+AGCX+AIC1+AJFX+ALDC+AMMX+BAIP+BDBA+BEF1+BF20+DAAU |
| Input voltage | 380–500 V AC |
| Input phases | Three-phase |
| Rated output current | 385 A |
| Cooling method | Air cooled |
| Protection rating | IP21 / UL Type 1 |
| EMC category | C2 |
| Frame size | FK09c |
| Control panel | 2.8 OPX20 |
| Digital inputs | 4 x DI |
| Configurable digital I/O | 2 x DI/O |
| Analogue inputs | 2 x AI |
| Analogue outputs | 1 x AO |
| Relay outputs | 2 x RO |
| Fieldbus protocol | EtherNet/IP OS7IP |
| Other communication | Ethernet port, no protocol |
| Functional safety | Safe Torque Off (STO), not upgradable |
| EMC Filter | Commercial |
The Danfoss 137N9128 is used to control the speed and torque of three-phase AC motors in industrial automation, process control and machinery applications.
The drive has a rated output current of 385 A, making it suitable for demanding high-power motor control applications.
The Danfoss 137N9128 operates from a three-phase 380–500 V AC supply.
This configuration includes EtherNet/IP OS7IP fieldbus communication and an Ethernet port for industrial connectivity.
Yes, the drive includes integrated Safe Torque Off (STO) functionality, listed as not upgradable for this configuration.
Danfoss iC7-Automation frequency converters are trusted by engineers, OEMs and industrial operators for dependable motor control, advanced connectivity and reliable 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...