Danfoss 137L8333 iC7-Automation air-cooled frequency converter for three-phase 380-500 V AC industrial motor control systems with 90 A rated current and IP21 / UL Type 1 protection.
£7,156.80
The Danfoss 137L8333 is a high-performance iC7-Automation frequency converter designed for precise and reliable motor control in demanding industrial automation applications. As part of the advanced Danfoss iC7-Automation drive range, it provides efficient speed and torque control for three-phase motors used in production machinery, process systems and engineered drive panels.
This air-cooled frequency converter is engineered to support stable motor operation, improved energy efficiency and flexible integration with modern automation networks. The iC7-Automation platform is suitable for applications requiring dependable performance, configurable control and robust industrial communication.
With a rated current of 90 A, three-phase 380–500 V AC supply compatibility and an IP21 / UL Type 1 enclosure, the Danfoss 137L8333 is suitable for indoor industrial installations and cabinet-based drive systems where reliable low-voltage motor control is required.
Frequency converters such as the Danfoss 137L8333 regulate motor speed by adjusting output voltage and frequency. This allows industrial machinery to operate more efficiently while improving process control, reducing mechanical stress and helping protect motors and driven equipment.
The iC7-Automation platform is developed for engineers, machine builders and system integrators who require flexible drive architecture, communication-ready control and dependable performance. With integrated safety functionality and industrial network support, the 137L8333 can be incorporated into modern automation systems with confidence.
| Power | 45 kW |
|---|---|
| Current | 90 A |
| Phase | Three Phase |
| IP Rating | IP21 |
| Series | iC7-Automation |
| Model / SKU | 137L8333 |
| Model code | 7FC-AUFA3N05-90A0E21F2-000126445 |
| Product type | Frequency converter |
| Cooling method | Air-cooled |
| Rated current | 90 A |
| Input voltage | 380–500 V AC |
| Input phases | 3-phase |
| Protection rating | IP21 / UL Type 1 |
| Frame size | FK07 |
| EMC category | C2 |
| Control panel | OPX20 2.8 control panel |
| 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 | STO, not upgradable |
| EMC Filter | Commercial |
The Danfoss 137L8333 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
This frequency converter has a rated current of approximately 90 A.
The drive is designed for a three-phase 380–500 V AC supply.
The Danfoss 137L8333 has an IP21 / UL Type 1 enclosure rating for suitable indoor and cabinet-based installations.
Yes, this configuration includes integrated Safe Torque Off (STO) functionality.
Danfoss iC7-Automation frequency converters are used by engineers, machine builders and system integrators to deliver reliable motor control, efficient operation and seamless integration into industrial 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...