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

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

The Unitronics UMI-0185EE-B1 is a heavy-duty AC variable frequency drive (VFD) designed for precise speed and torque control of three-phase motors in demanding industrial automation and machine building applications. As part of the Unitronics UMI-B1 EU series, this inverter provides robust motor control, flexible communication and efficient variable speed performance for larger machinery systems.

This drive combines high-power VFD operation with an integrated C3 EMC filter, built-in dynamic braking and Safe Torque Off functionality. Its IP20 enclosure and wall or flange mounting format make it suitable for installation inside electrical control panels, machinery cabinets and OEM automation systems.

With a rated output power of 18.5 kW (25 HP) and a three-phase 380–440 V AC supply, the UMI-0185EE-B1 is ideal for conveyors, pumps, fans, compressors, processing equipment and production machinery requiring dependable high-power variable speed motor control.

Key Advantages

• Heavy-duty variable frequency drive designed for industrial machinery applications.
• 18.5 kW / 25 HP motor power rating suitable for larger industrial equipment.
• Three-phase 380–440 V AC input compatible with industrial power supplies.
• 38 A nominal output current for reliable motor operation.
• Integrated Safe Torque Off (STO) with PLe, SIL3 and Cat.3 safety ratings.
• Built-in dynamic braking and integrated C3 EMC filter.
• Modbus RTU and RS-485 communication for PLC and HMI integration.

Key Features

• Unitronics UMI-B1 EU series inverter.
• 18.5 kW / 25 HP rated output power.
• 38 A nominal output current.
• Three-phase 380–440 V AC input supply.
• 0–400 Hz output frequency range.
• Integrated Safe Torque Off (STO) functionality.
• RS-485 communication interface with Modbus RTU support.
• SVPWM and sensorless vector control functionality.
• IP20 enclosure for control cabinet installation.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B1 EU Series
• Model: UMI-0185EE-B1
• Product type: AC variable frequency drive / inverter
• Rated output power: 18.5 kW (25 HP)
• Rated output current: 38 A
• Input voltage: 380–440 V AC
• Input phases: 3-phase
• Network frequency: 50 / 60 Hz
• Output frequency: 0–400 Hz
• Protection rating: IP20
• Mounting type: Wall / flange mounting
• Communication: Modbus RTU, RS-485
• Safety rating: PLe, SIL3, Cat.3
• EMC filter: Integrated C3 filter
• Dimensions (H × W × D): approx. 340.6 × 200 × 184.3 mm
• Cooling method: Forced air cooling

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 improves process accuracy, reduces mechanical stress and helps lower energy consumption in motor-driven machinery.

The UMI-B1 EU series is designed for automation environments where high-power performance, reliable control and flexible communication are essential. With Modbus RTU, RS-485 connectivity, STO safety functionality, dynamic braking and an integrated EMC filter, this drive can operate as a stand-alone inverter or as part of a PLC-controlled machine system.

Typical Applications

• Industrial conveyors and material handling systems.
• Pumps and water handling equipment.
• Fans, blowers and ventilation systems.
• Compressors and processing equipment.
• Packaging and production machinery.
• OEM automation and machine building systems.

Trusted by Automation Engineers Worldwide

Unitronics UMI-B1 EU series variable frequency drives are trusted by machine builders and automation engineers for heavy-duty motor control, efficient operation and flexible integration into industrial control systems.