UMI-0370EU-B7 Unitronics | 37 kW 3 Phase 380-480VAC | VSD

Why Choose the Unitronics UMI-0370EU-B7 Variable Frequency Drive?

The Unitronics UMI-0370EU-B7 is a high-capacity 37 kW variable frequency drive (VFD) designed to deliver precise control of industrial three-phase AC motors. Operating on a 380–480 V three-phase supply, this inverter enables accurate speed regulation, improved energy efficiency and reliable motor protection in demanding automation environments such as pumps, conveyors and process machinery.

Part of the advanced UMI-B7 drive series, this model integrates modern motor control technologies including sensorless vector control, closed-loop vector control and SVPWM. These control methods provide stable torque output, smooth acceleration and optimised system efficiency for complex industrial processes.

Designed for seamless integration into modern automation systems, the drive includes built-in Modbus RTU communication via RS-485 and supports optional expansion cards for additional networking and I/O capabilities. This allows direct integration with PLC, HMI and industrial communication systems.

Key Advantages

• 37 kW (50 HP) motor control suitable for heavy industrial machinery.
• 380–480 V three-phase input compatible with global industrial power systems.
• Advanced vector motor control algorithms for precise speed and torque regulation.
• Integrated Safe Torque Off (STO) functional safety support.
• Built-in Modbus RTU communication for PLC and automation integration.
• Expandable architecture supporting communication, encoder and I/O expansion cards.

Key Features

• Variable frequency drive (VFD) for industrial AC motor speed control.
• Rated motor power: 37 kW / 50 HP.
• Input voltage: 380–480 V AC three-phase.
• Output frequency range up to 400 Hz.
• Integrated Modbus RTU RS-485 communication.
• Removable keypad interface for configuration and diagnostics.
• Multiple analogue and digital I/O for flexible system control.
• Supports asynchronous induction motors and permanent-magnet synchronous motors.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B7 Variable Frequency Drives
• Model: UMI-0370EU-B7
• Rated motor power: 37 kW (50 HP)
• Input voltage: 380–480 V AC, three-phase
• Input frequency: 50 / 60 Hz (47–63 Hz range)
• Output frequency range: 0–400 Hz
• Supported motors: Asynchronous induction and permanent-magnet synchronous motors
• Overload capacity: 150% for 60 s, 180% for 10 s
• Communication: Modbus RTU RS-485 with optional communication cards
• Protection rating: IP20
• Cooling method: Air-cooled

Industrial Motor Control and Automation

Variable frequency drives adjust the voltage and frequency supplied to motors to control their speed and torque. This enables significant energy savings, smoother machine operation and improved process control compared with fixed-speed motor systems.

The Unitronics UMI-B7 series provides a broad range of drive capacities and voltage classes, allowing engineers to deploy the drives across both machine-level automation and large industrial process systems.

Typical Applications

• Industrial pumps and water management systems.
• HVAC fans and ventilation equipment.
• Material handling and conveyor systems.
• Packaging and processing machinery.
• General industrial motor speed control.

Trusted by Automation Engineers

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