UMI-0300CU-B7 Unitronics | 30 kW 3 Phase 200-240VAC | VSD

Why Choose the Unitronics UMI-0300CU-B7 Variable Frequency Drive?

The Unitronics UMI-0300CU-B7 is a high-performance 30 kW variable frequency drive (VFD) designed to deliver precise control of industrial three-phase AC motors. Operating on a 200–240 V AC three-phase power supply, this drive enables accurate speed regulation, improved energy efficiency and reliable motor protection in demanding automation environments.

Part of the advanced UMI-B7 series, this inverter incorporates modern motor control technology including sensorless vector control, closed-loop vector control and SVPWM. These control methods enable stable torque output, smooth acceleration and improved system efficiency for applications such as pumps, conveyors and industrial processing equipment.

The drive is designed for flexible integration into modern automation systems. With built-in Modbus RTU communication via RS-485 and support for optional expansion cards, the UMI-B7 platform integrates easily with PLC, HMI and industrial communication networks.

Key Advantages

• 30 kW (40 HP) motor control for demanding industrial machinery.
• 200–240 V three-phase input suitable for heavy-duty industrial power systems.
• Advanced vector control and SVPWM algorithms for precise speed and torque regulation.
• Integrated Safe Torque Off (STO) safety functionality.
• Built-in Modbus RTU communication for seamless automation system integration.
• Expandable architecture supporting additional communication and I/O cards.

Key Features

• Variable frequency drive (VFD) for industrial AC motor speed control.
• Rated motor power: 30 kW / 40 HP.
• Input voltage: 200–240 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-0300CU-B7
• Rated motor power: 30 kW (40 HP)
• Input voltage: 200–240 V AC, three-phase
• Input frequency: 50 / 60 Hz (47–63 Hz range)
• Rated output current: approx. 110 A
• Output frequency range: 0–400 Hz
• Control methods: SVPWM, sensorless vector control (SVC), closed-loop vector control (VC)
• Communication: Modbus RTU RS-485 with optional communication cards
• Analogue inputs: 0–10 V / 0–20 mA
• Analogue outputs: 0–10 V / 0–20 mA
• Digital inputs: 4 standard + 2 high-speed inputs
• Protection rating: IP20
• Cooling method: Air cooling

Industrial Motor Control and Automation

Variable frequency drives allow motors to operate only at the speed required by the application. By adjusting motor frequency and voltage, VFDs significantly improve energy efficiency while reducing mechanical stress and maintenance requirements in industrial machinery.

The Unitronics UMI-B7 platform supports both asynchronous induction motors and permanent-magnet synchronous motors, providing flexibility across manufacturing, process control and machine automation environments.

Typical Applications

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

Trusted by Automation Engineers

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