Danfoss 137L5277 iC7-Automation frequency converter, an air-cooled 658 A variable frequency drive for 380-500 V AC industrial motor control with EtherNet/IP communication.
£27,582.40
The Danfoss 137L5277 is a high-power iC7-Automation frequency converter designed for demanding industrial automation and motor control applications. Part of the advanced Danfoss iC7-Automation drive series, this air-cooled variable frequency drive provides precise speed regulation, robust performance and flexible integration into modern industrial systems.
Engineered for heavy-duty industrial environments, the Danfoss 137L5277 combines efficient motor control with integrated safety, coated circuit boards and industrial Ethernet connectivity. Its configurable design makes it suitable for OEM machinery manufacturers, panel builders and industrial users requiring dependable performance in high-power applications.
With a 380–500 V AC supply, 658 A rating and IP20 / Open Type protection, the 137L5277 is suitable for large industrial motor applications within electrical cabinets and control panels. The unit features a frame FA11 construction, 355 kW / 500 hp power rating, EMC category C2 performance, integrated Safe Torque Off functionality and EtherNet/IP fieldbus communication.
Frequency converters regulate motor speed by adjusting the output frequency and voltage supplied to the motor. This allows industrial machinery to operate more efficiently, improves process control and helps reduce mechanical stress on motors and driven equipment.
The Danfoss 137L5277 is designed for large-scale automation systems that require high current capacity, reliable communication and advanced motor performance. Its EtherNet/IP capability, standard I/O configuration and integrated safety function make it well suited to connected industrial environments and demanding production systems.
| Power | 355 kW |
|---|---|
| Current | 658 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Part number | 137L5277 |
| Catalogue number | 7FC-AUFA3N05-658AE20F2-000123444 |
| Full model code | IC7-60FA3N05-658AE20F2+AGCX+BAIP+BDBA+BEF1+BF20+DAAU |
| Product type | Frequency converter / variable frequency drive |
| Cooling method | Air cooled |
| Input voltage | 380–500 V AC |
| Input phases | 3-phase |
| Rated current | 658 A |
| Power rating | 355 kW / 500 hp |
| Protection rating | IP20 / Open Type |
| Frame size | FA11 |
| EMC category | C2 |
| Control panel | 2.8 OPX20 |
| Standard I/O | 4 × DI, 2 × DI/O, 2 × AI, 1 × AO, 2 × RO |
| Fieldbus protocol | EtherNet/IP OS7IP |
| Other protocols | Ethernet port, no protocol |
| Environmental protection | Coated boards |
| Functional safety | Safe Torque Off (STO), not upgradable |
| Gross weight | approx. 247.41 kg |
| Net weight | approx. 191.3 kg |
| EMC Filter | Commercial |
The Danfoss 137L5277 is used for controlling the speed and performance of AC motors in demanding industrial automation and high-power machinery applications.
The 137L5277 belongs to the Danfoss iC7-Automation frequency converter series.
The Danfoss 137L5277 is designed for a 380–500 V AC supply.
This model has a rated current of 658 A, making it suitable for large industrial motor control applications.
Yes, the Danfoss 137L5277 has EtherNet/IP fieldbus communication enabled for industrial automation network integration.
Danfoss iC7-Automation frequency converters are trusted by engineers, OEMs and industrial users for precise motor control, robust automation integration and reliable performance in demanding high-power applications.
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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...