UMI-0185EE-B1 Unitronics | 18.5 kW 3 Phase 380-480VAC | VSD

Why Choose the Unitronics UMI-0185EE-B1 Variable Speed Drive?

The Unitronics UMI-0185EE-B1 is a high-power AC variable frequency drive (VFD) engineered for precise speed and torque control of large three-phase motors in heavy industrial environments. As part of the advanced Unitronics UMI-B1 EU series, it is specifically designed for demanding applications requiring high performance, reliability and seamless integration into automation systems.

This drive incorporates advanced sensorless vector control (SVC) and SVPWM technology, delivering stable torque, smooth operation and optimised energy efficiency. With integrated dynamic braking and a built-in C3 EMC filter, it ensures reliable operation even in electrically noisy industrial environments.

With a rated output power of 18.5 kW and a three-phase 380–440 V AC supply, the UMI-0185EE-B1 is ideal for heavy-duty machinery such as conveyors, compressors, pumps and large processing systems. Its robust construction and flexible mounting options make it suitable for installation in industrial control panels and enclosures.

Key Advantages

• Heavy-duty variable frequency drive for industrial automation.
• 18.5 kW motor power rating for large-scale applications.
• Three-phase 380–440 V AC input for industrial power systems.
• Integrated Safe Torque Off (STO) safety function (PLe, SIL3, Category 3).
• Built-in dynamic braking for precise stopping control.
• High efficiency motor control improves performance and reduces energy costs.

Key Features

• Unitronics UMI-B1 EU series.
• 18.5 kW (25 HP) rated output power.
• Approx. 38 A nominal output current.
• Three-phase 380–440 V AC input supply.
• Integrated Safe Torque Off (STO) functionality.
• Sensorless vector control (SVC) and V/f control modes.
• Built-in PID control and advanced automation functionality.
• Integrated C3 EMC filter and braking transistor.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B1 EU
• Model: UMI-0185EE-B1
• Product type: AC variable frequency drive
• Rated output power: 18.5 kW / 25 HP
• Rated output current: approx. 38 A
• Input voltage: 380–440 V AC
• Input phases: 3-phase
• Frequency: 50 / 60 Hz (output 0–400 Hz)
• Overload capacity: 150% (57 A, 60 s), 180% (68 A, 10 s), 200% (76 A, 1 s)
• Protection rating: IP20
• Mounting type: Wall or flange mounting
• Communication: Modbus RTU (RS-485)
• Digital inputs: 4 programmable + 1 high-speed + 1 safety input
• Digital outputs: 2 relay outputs + 1 transistor output
• Analogue inputs: 0–10 V, 0–20 mA
• Analogue outputs: 2 × 0–10 V / 0–20 mA
• Cooling method: Forced air cooling
• Operating temperature: approx. -10 to +50 °C

Reliable Motor Control for Industrial Machinery

Variable frequency drives such as the Unitronics UMI-0185EE-B1 regulate motor speed by adjusting output voltage and frequency. This enables improved process precision, reduced mechanical wear and optimised energy efficiency across large industrial systems.

The UMI-B1 series is designed for advanced automation environments, supporting seamless integration with PLC and HMI systems via Modbus RTU communication. It supports both induction and permanent magnet motors, making it suitable for a wide range of industrial applications.

Typical Applications

• Heavy-duty conveyors and material handling systems.
• Industrial compressors and pump systems.
• Large fans and HVAC installations.
• Processing and manufacturing equipment.
• Water treatment and energy systems.
• OEM automation systems and machine building.

Trusted by Machine Builders Worldwide

Unitronics UMI-B1 drives are trusted globally by automation engineers and OEM machine builders for delivering reliable motor control, efficient operation and seamless integration into large-scale industrial systems.