Danfoss 137H3721 iC7-Automation frequency converter for industrial motor control, automation systems, and OEM machinery applications requiring 5.5A performance.
£906.40
The Danfoss 137H3721 is a high-performance iC7-Automation frequency converter designed for demanding industrial automation applications requiring precise motor control, high efficiency, and advanced system integration. Built on Danfoss’ latest generation drive platform, it delivers reliable and scalable performance for OEM machinery, conveyors, pumps, fans, and process automation systems.
The iC7-Automation series is engineered to provide maximum flexibility, combining advanced vector control, integrated safety functionality, and extensive communication capabilities. Its modular architecture supports both standard and complex industrial applications where precision, uptime, and energy efficiency are essential.
With a rated supply of 380–500 V AC and a nominal output current of 5.5 A, the 137H3721 is suited for low-to-mid power motor applications requiring stable torque, smooth operation, and efficient energy usage in continuous industrial environments. {index=0}
The iC7-Automation drive regulates motor speed and torque by adjusting output frequency and voltage, ensuring smooth operation, improved process stability, and reduced mechanical stress on connected equipment.
Its intelligent control architecture is designed for modern industrial environments, delivering high precision, efficiency, and long-term reliability across a wide range of automation applications.
| Power | 2.2 kW |
|---|---|
| Current | 4 A |
| Voltage | 500 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Product type | Frequency converter / AC drive |
| Supply voltage | 380–500 V AC |
| Rated current | 5.5 A |
| Power rating | approx. 2.2 kW class |
| Input phases | 3-phase |
| Protection rating | IP20 / cabinet installation |
| Cooling | Forced air cooling |
| Control method | Vector control / automation drive platform |
| Functional safety | Safe Torque Off (STO) |
| EMC Filter | None |
It is used for precise control of three-phase AC motors in industrial automation and machinery systems.
The drive has a rated output current of 5.5 A.
It operates on a three-phase 380–500 V AC supply.
Yes, it includes integrated Safe Torque Off (STO) functionality for safe operation.
It is designed for installation inside industrial electrical control cabinets.
Danfoss iC7-Automation drives are widely recognised for their precision control, scalability, and energy-efficient performance in advanced industrial 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...