Danfoss 137L3557 iC7-Automation frequency converter, an air-cooled three-phase 380-500 V AC industrial drive with 2.4 A output current, Modbus TCP communication and integrated STO safety functionality.
£628.80
The Danfoss 137L3557 is a compact and efficient iC7-Automation frequency converter designed for precise speed and torque control of three-phase motors in industrial automation applications. As part of the advanced Danfoss iC7-Automation drive series, it is built for machine builders, panel builders and industrial operators who require reliable motor control, flexible communication and simplified integration.
This air-cooled frequency converter combines modern drive technology with integrated I/O, Ethernet connectivity and functional safety support. Its compact IP20 open-type design makes it ideal for cabinet installation, helping save panel space while delivering dependable performance for small industrial motor applications.
With a rated output current of 2.4 A and a three-phase 380-500 V AC supply, the Danfoss 137L3557 is suitable for smaller machinery and automation systems requiring accurate variable speed control. The drive includes Modbus TCP fieldbus capability, a 2.8 OPX20 control panel and integrated Safe Torque Off (STO) functionality.
Frequency converters such as the Danfoss 137L3557 regulate motor speed by controlling the voltage and frequency supplied to the motor. This improves process control, reduces mechanical stress and helps optimise energy use in variable-speed motor applications.
The iC7-Automation platform is designed for modern industrial control systems where connectivity, safety and compact installation are essential. With integrated I/O, Modbus TCP, Ethernet connectivity and STO functionality, this drive is well suited to automated machines and control panel applications.
| Power | 0.75 kW |
|---|---|
| Current | 2.4 A |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | iC7-Automation |
| Full model code | IC7-60FA3N05-02A4E20F2+ACBC+ALDC+BAMT+BDBA+BEF1+BF20+CBX0+DAAU |
| Product type | Frequency converter |
| Rated output current | 2.4 A |
| Input voltage | 380-500 V AC |
| Input phases | 3-phase |
| Cooling method | Air-cooled |
| Protection rating | IP20 / Open Type |
| Frame size | FA02b |
| EMC category | C2 |
| Control panel | 2.8 OPX20 |
| Digital inputs | 4 x DI |
| Digital I/O | 2 x DI/O |
| Analogue inputs | 2 x AI |
| Analogue outputs | 1 x AO |
| Relay outputs | 2 x RO |
| Fieldbus protocol | Modbus TCP |
| Other communication | Ethernet port, no protocol |
| Functional safety | STO, not upgradable |
| EMC Filter | Commercial |
The Danfoss 137L3557 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
The drive has a rated output current of approximately 2.4 A.
The Danfoss 137L3557 operates from a three-phase 380-500 V AC supply.
This model has an IP20 / Open Type protection rating, making it suitable for installation inside electrical control cabinets.
Yes, the drive includes integrated Safe Torque Off (STO) functionality for machine safety applications.
Danfoss iC7-Automation frequency converters are trusted by engineers, machine builders and panel builders worldwide for reliable motor control, efficient operation and flexible automation integration.
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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...