UMI-0750EU-B7 Unitronics | 75 kW 3 Phase 380-480VAC | VSD

Why Choose the Unitronics UMI-0750EU-B7 Variable Frequency Drive?

The Unitronics UMI-0750EU-B7 is a high-capacity 75 kW variable frequency drive (VFD) designed to provide precise speed and torque control for industrial three-phase AC motors. Operating on a 380–480 V AC three-phase power supply, this inverter enables efficient and reliable motor management in demanding automation environments such as pumps, conveyors, compressors and heavy production machinery.

Part of the advanced UMI-B7 drive series, the drive integrates modern motor control technology and flexible communication capabilities. The platform supports advanced control modes including V/F control, sensorless vector control and closed-loop vector control, allowing engineers to achieve smooth acceleration, stable torque output and improved energy efficiency across industrial processes.

Designed for seamless automation integration, the drive includes built-in Modbus RTU communication via RS-485 and supports optional communication cards for Ethernet and other industrial networks. This architecture allows the inverter to operate as a standalone drive or as part of a fully integrated PLC-based automation system.

Key Advantages

• 75 kW (100 HP) motor control for demanding industrial applications.
• 380–480 V three-phase input compatible with global industrial power systems.
• Advanced vector motor control algorithms for accurate speed and torque regulation.
• Integrated Safe Torque Off (STO) safety functionality.
• Modbus RTU RS-485 communication for PLC and automation system integration.
• Expandable architecture supporting communication, encoder and additional I/O cards.

Key Features

• Variable frequency drive (VFD) for industrial AC motor speed control.
• Rated motor power: 75 kW / 100 HP.
• Input voltage: 380–480 V AC three-phase.
• Output frequency range up to 400 Hz.
• Integrated Modbus RTU communication via RS-485.
• Optional communication cards including Ethernet and fieldbus options.
• Removable keypad interface for configuration and diagnostics.
• Supports asynchronous induction motors and permanent-magnet synchronous motors.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B7 Variable Frequency Drives
• Model: UMI-0750EU-B7
• Rated motor power: 75 kW (100 HP)
• Input voltage: 380–480 V AC, three-phase
• Input frequency: 50 / 60 Hz
• Output frequency range: 0–400 Hz
• Control methods: V/F control, sensorless vector control (SVC), closed-loop vector control
• Supported motors: Three-phase asynchronous induction motors and PMSM motors
• Overload capacity: 150% for 60 s, 180% for 10 s
• Communication: Modbus RTU RS-485 with optional expansion communication cards
• Protection rating: IP20
• Cooling method: Forced air cooling

Industrial Motor Control and Energy Efficiency

Variable frequency drives regulate the frequency and voltage supplied to motors, allowing precise control of motor speed and torque. This improves process efficiency, reduces mechanical wear and lowers energy consumption compared with fixed-speed motor systems.

The UMI-B7 series covers a wide power range from small fractional-kilowatt drives up to hundreds of kilowatts, enabling engineers to standardise drive technology across multiple machine platforms and industrial systems.

Typical Applications

• Industrial pumps and water treatment systems.
• HVAC fans and ventilation equipment.
• Material handling and conveyor systems.
• Compressors and processing machinery.
• Heavy-duty industrial motor speed control.

Trusted by Automation Engineers

Unitronics UMI-B7 drives are widely deployed by machine builders and system integrators to deliver reliable and energy-efficient motor control in industrial automation systems.