Unitronics UMI-0004BE-B1 variable frequency drive, a 0.4 kW single-phase 200-240 V AC input inverter for three-phase motor control, automation machinery, pumps, fans and conveyors.
£128.80
The Unitronics UMI-0004BE-B1 is a compact and reliable AC variable frequency drive (VFD) from the Unitronics UMI-B1 series, designed for efficient speed control of three-phase motors in automation, machinery and industrial control applications. It provides precise motor regulation while helping improve machine performance, reduce energy consumption and lower mechanical wear.
This drive combines a compact B1 casing with practical control features, making it suitable for standalone use or integration with Unitronics PLC and HMI systems. Built-in communication capability, flexible I/O and integrated safety functionality make the UMI-0004BE-B1 a strong choice for machine builders and automation engineers requiring dependable small motor control.
With a rated output power of 0.4 kW / 0.5 HP and a single-phase 200–240 V AC input supply, the UMI-0004BE-B1 is ideal for compact machinery, conveyors, fans, pumps and OEM automation systems. The drive includes Safe Torque Off (STO), built-in dynamic braking and an IP20 enclosure for DIN rail or wall mounting.
Variable frequency drives such as the Unitronics UMI-0004BE-B1 regulate motor speed by adjusting output voltage and frequency. This allows machinery to run more efficiently while improving process control and reducing stress on motors, belts, pumps, fans and mechanical components.
The UMI-B1 series is well suited to machine automation environments where compact installation, flexible communication and reliable motor control are essential. Its support for Modbus RTU and RS-485 communication enables integration with PLCs, HMIs and wider automation systems.
| Power | 0.4 kW |
|---|---|
| Current | 2.5 A |
| Voltage | 240 V |
| Phase | Single Phase |
| IP Rating | IP20 |
| Series | UMI-B1 EU Series |
| Product type | AC variable frequency drive |
| Rated output power | 0.4 kW / 0.5 HP |
| Rated output current | 2.5 A |
| Input voltage | 200–240 V AC |
| Input phases | Single phase |
| Output phases | Three phase |
| Output frequency | 0–400 Hz |
| Safety function | Safe Torque Off (STO) |
| Safety rating | PLd / SIL2 / Cat.3 |
| Protection rating | IP20 |
| Mounting type | DIN rail / wall mounting |
| Ambient operating temperature | -10 to +50 °C |
| Dimensions (H × W × D) | approx. 160 × 80 × 124 mm |
| EMC Filter | None |
The Unitronics UMI-0004BE-B1 is used to control the speed of three-phase AC motors in machinery, automation, conveyor, pump, fan and OEM control applications.
The drive supports motors with a rated output power of approximately 0.4 kW / 0.5 HP.
The drive operates from a single-phase 200–240 V AC supply.
Yes, this model includes an integrated Safe Torque Off (STO) safety function rated PLd, SIL2 and Cat.3.
The drive supports RS-485 / Modbus RTU communication for integration with PLC, HMI and automation systems.
Unitronics variable frequency drives are widely used by machine builders, automation engineers and maintenance teams to deliver reliable motor control, efficient operation and straightforward integration into industrial control 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...