Danfoss 137L4973 iC7-Automation frequency converter, an air-cooled 90 A variable frequency drive for 380-500 V AC industrial motor control with Modbus TCP communication.
£6,857.60
The Danfoss 137L4973 is an advanced iC7-Automation frequency converter designed for precise AC motor control in demanding industrial automation applications. Part of the modern Danfoss iC7-Automation drive series, this air-cooled variable frequency drive provides reliable speed regulation, efficient motor performance and flexible connectivity for industrial control systems.
Engineered for demanding industrial environments, the Danfoss 137L4973 combines dependable motor control with integrated safety and automation features. Its IP21 / UL Type 1 enclosure, standard I/O and enabled Modbus TCP communication make it suitable for OEM machinery, panel builders and connected production systems requiring reliable Ethernet-based network integration.
With a 380–500 V AC supply, 90 A rating and frame FK07 construction, the 137L4973 is ideal for medium to high-power industrial motor applications. The drive also includes EMC category C3 performance, Control Panel 2.8 OPX20, Ethernet connectivity and integrated Safe Torque Off functionality.
Frequency converters regulate motor speed by adjusting the output frequency and voltage supplied to the motor. This helps machinery operate more efficiently, improves process control and reduces mechanical stress on motors, pumps, fans and driven equipment.
The Danfoss 137L4973 is designed for industrial systems that require dependable motor control, Ethernet-based connectivity and integrated safety in a robust drive platform. Its Modbus TCP capability, standard I/O and iC7-Automation architecture make it suitable for modern machine automation and control panel applications.
| Power | 45 kW |
|---|---|
| Current | 90 A |
| Phase | Three Phase |
| IP Rating | IP21 |
| Series | iC7-Automation |
| Part number | 137L4973 |
| Catalogue number | 7FC-AUFA3N05-90A0E21F3-000123124 |
| Full model code | IC7-60FA3N05-90A0E21F3+BAMT+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 | 90 A |
| Protection rating | IP21 / UL Type 1 |
| Frame size | FK07 |
| EMC category | C3 |
| Control panel | 2.8 OPX20 |
| Standard I/O | 4 × DI, 2 × DI/O, 2 × AI, 1 × AO, 2 × RO |
| Fieldbus protocol | Modbus TCP OS7MT |
| Other protocols | Ethernet port, no protocol |
| Functional safety | Safe Torque Off (STO), not upgradable |
| EMC Filter | Industrial |
The Danfoss 137L4973 is used for controlling the speed and performance of AC motors in industrial automation, machinery and process control applications.
The 137L4973 belongs to the Danfoss iC7-Automation frequency converter series.
The Danfoss 137L4973 is designed for a 380–500 V AC supply.
This model has a rated current of 90 A, making it suitable for medium to high-power industrial motor control applications.
Yes, the Danfoss 137L4973 has Modbus TCP fieldbus communication enabled for industrial automation network integration.
Danfoss iC7-Automation frequency converters are trusted by engineers, OEMs and industrial users for reliable motor control, flexible connectivity and dependable performance in modern automation systems.
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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...