UMI-0004CU-B1 Unitronics | 0.4 kW 3 Phase 200-240VAC | VSD

Why Choose the Unitronics UMI-0004CU-B1 Variable Speed Drive?

The Unitronics UMI-0004CU-B1 is a compact and high-performance AC variable frequency drive (VFD) designed for precise speed and torque control of three-phase motors in industrial automation systems. As part of the advanced Unitronics UMI-B1 UL series, it is engineered for machine builders and OEM manufacturers seeking efficient motor control and seamless integration.

This drive provides advanced motor control functionality including sensorless vector control, SVPWM technology and built-in dynamic braking, helping improve machine performance, energy efficiency and operational reliability. Its flexible configuration and communication capabilities make it ideal for integration with PLC and HMI systems.

With a rated output power of 0.4 kW and a three-phase 200–240 V AC supply, the UMI-0004CU-B1 is ideal for small industrial motors used in conveyors, fans, compressors and processing machinery. Its compact design enables easy installation within electrical panels or on DIN rail systems.

Key Advantages

• Compact variable frequency drive designed for industrial automation.
• 0.4 kW motor power rating for small machinery.
• Three-phase 200–240 V AC input compatible with industrial power systems.
• Integrated dynamic braking for improved stopping control.
• Advanced motor control improves efficiency and reduces mechanical stress.
• Flexible integration with PLC systems via communication interfaces.

Key Features

• Unitronics UMI-B1 UL series.
• 0.4 kW (0.5 HP) rated output power.
• 2.5 A nominal output current.
• Three-phase 200–240 V AC input supply.
• Integrated Safe Torque Off (STO) functionality.
• Sensorless vector control (SVC) and SVPWM control modes.
• Built-in PID control and simple PLC functionality.
• Integrated braking transistor and forced air cooling.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B1 UL
• Model: UMI-0004CU-B1
• 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: 3-phase
• Frequency: 50 / 60 Hz (output 0–400 Hz)
• Overload capacity: 150% (60 s), 180% (10 s), 200% (1 s)
• Protection rating: IP20
• Mounting type: DIN rail or wall mounting
• Communication: Modbus RTU (RS-485)
• Digital inputs: 4 programmable + 1 high-speed input
• Digital outputs: 2 relay outputs + 1 transistor output
• Analogue inputs: 0–10 V, 0–20 mA
• Analogue outputs: 0–10 V / 0–20 mA
• Cooling method: Forced air cooling
• Operating temperature: approx. -10 to +50 °C
• Dimensions (H × W × D): approx. 185 × 80 × 141 mm

Reliable Motor Control for Industrial Machinery

Variable frequency drives such as the Unitronics UMI-0004CU-B1 regulate motor speed by adjusting output voltage and frequency. This allows machinery to operate more efficiently while improving process precision and reducing mechanical stress on motors and drive components.

The UMI-B1 series is designed for modern automation systems, offering flexible programming, communication and monitoring capabilities. It supports both induction and permanent magnet motors, making it suitable for a wide range of industrial applications.

Typical Applications

• Industrial conveyors and material handling systems.
• Packaging and production machinery.
• Pumps, fans and ventilation equipment.
• Compressors and processing equipment.
• Food and beverage manufacturing.
• OEM automation systems and machine building.

Trusted by Machine Builders Worldwide

Unitronics UMI-B1 drives are widely used by automation engineers and OEM machine builders to deliver reliable motor control, efficient operation and seamless integration into modern industrial equipment.