Unitronics UMI-0040CU-B7 variable frequency drive, a 4 kW three phase 200-240 V AC inverter with integrated STO safety, advanced motor control and industrial communication capabilities.
£382.20
The Unitronics UMI-0040CU-B7 is a high-performance AC variable frequency drive (VFD) designed for precise speed and torque control of three-phase motors in industrial automation, machinery and process applications. As part of the advanced Unitronics UMI-B7 series, it delivers reliable motor control, integrated safety functions and seamless connectivity with modern automation systems.
The UMI-B7 range provides advanced motor control technologies including sensorless vector control and closed-loop control capabilities. Built-in Safe Torque Off (STO), integrated Modbus RTU communication and optional Ethernet-based networking allow the drive to be easily incorporated into modern machine control architectures.
With a rated output power of 4 kW / 5 HP and a three-phase 200–240 V AC supply, the UMI-0040CU-B7 is ideal for industrial motors used in conveyors, pumps, fans, packaging equipment and automated production machinery.
Variable frequency drives such as the Unitronics UMI-0040CU-B7 regulate motor speed by adjusting output voltage and frequency. This enables smoother acceleration, improved process accuracy, reduced mechanical wear and enhanced energy efficiency across industrial machinery and automated systems.
The UMI-B7 series is designed for machine builders, panel builders and system integrators seeking advanced motor control capabilities in a compact platform. Optional communication cards allow integration with Ethernet-based industrial networks while maintaining compatibility with existing PLC and HMI systems.
| Power | 4 kW |
|---|---|
| Current | 16 A |
| Voltage | 240 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | UMI-B7 Series |
| Product type | AC variable frequency drive |
| Rated output power | 4 kW |
| Horsepower rating | 5 HP |
| Input voltage | 200–240 V AC |
| Input phases | 3-phase |
| Input frequency | 50 / 60 Hz |
| Output phases | 3-phase |
| Output frequency | 0–400 Hz |
| Control methods | SVPWM, Sensorless Vector Control, Closed Loop Control |
| Safety function | Safe Torque Off (STO) |
| Supported motors | Asynchronous induction motors and permanent magnet synchronous motors |
| Mounting type | Wall, flange or panel mounting |
| Protection rating | IP20 |
| EMC Filter | None |
This drive is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process applications.
The drive supports motors with a rated output power of approximately 4 kW / 5 HP.
The UMI-0040CU-B7 operates from a three-phase 200–240 V AC supply.
Yes, the drive includes integrated Safe Torque Off (STO) functionality certified for industrial machine safety applications.
Yes. The drive includes built-in RS-485 Modbus RTU communication and supports optional communication cards for Ethernet-based industrial networks.
Unitronics UMI-B7 variable frequency drives are widely used by machine builders and automation engineers to deliver reliable motor control, efficient operation and flexible integration into modern industrial equipment.
● 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...