Unitronics UMI-0040EU-B7 variable frequency drive, a 4 kW three phase 380-480 V AC inverter with Safe Torque Off, Modbus RTU communication and advanced closed-loop motor control for industrial automation systems.
£317.80
The Unitronics UMI-0040EU-B7 is a compact and high-performance AC variable frequency drive (VFD) designed for precise speed, torque and position control of three-phase motors in industrial automation and machine building applications. As part of the advanced Unitronics UMI-B7 UL series, this inverter provides reliable motor control, flexible integration and efficient variable speed performance for modern machinery systems.
This drive combines dependable VFD operation with built-in Safe Torque Off functionality, advanced motor control features and communication support for automation networks. Its compact IP20 enclosure makes it suitable for electrical control panels, machinery cabinets and OEM automation systems where reliable motor control and easy integration are required.
With a rated output power of 4 kW (5 HP) and a three-phase 380–480 V AC supply, the UMI-0040EU-B7 is ideal for conveyors, pumps, fans, compressors, packaging machinery and production equipment requiring accurate and dependable variable speed operation.
Variable frequency drives such as the Unitronics UMI-0040EU-B7 regulate motor speed by adjusting output voltage and frequency. This improves process accuracy, reduces mechanical stress and helps lower energy consumption across motor-driven machinery and automation systems.
The UMI-B7 series is engineered for modern industrial environments requiring high-performance motor control and advanced connectivity. Features such as STO, optional Ethernet communication, encoder feedback support and integrated motion control functions help reduce development time while increasing machine flexibility.
| Power | 4 kW |
|---|---|
| Current | 9.5 A |
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | UMI-B7 UL Series |
| Product type | AC variable frequency drive / inverter |
| Rated output power | 4 kW (5 HP) |
| Input voltage | 380–480 V AC |
| Input phases | 3-phase |
| Network frequency | 50 / 60 Hz |
| Output frequency | 0–400 Hz |
| Protection rating | IP20 |
| Mounting type | Cabinet / panel mounting |
| Optional communication | Ethernet, CANopen and expansion cards |
| Safety function | Safe Torque Off (STO) |
| Control type | Speed, torque and position control |
| Application type | Industrial motor control and automation |
| EMC Filter | None |
This drive is used to control the speed, torque and position of three-phase AC motors in industrial automation, machinery and process control applications.
The UMI-0040EU-B7 supports motors with a rated output power of approximately 4 kW (5 HP).
The drive operates from a three-phase 380–480 V AC supply.
Yes. The UMI-0040EU-B7 includes integrated Safe Torque Off (STO) functionality for machine safety applications.
Yes. The drive supports Modbus RTU communication via an RS-485 interface, with optional Ethernet and other communication expansion cards available.
Unitronics UMI-B7 series variable frequency drives are trusted by machine builders and automation engineers for advanced motor control, integrated safety functionality and flexible industrial network connectivity.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...