UMI-0370CU-B7 Unitronics | 37 kW 3 Phase 200-240VAC | VSD

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

The Unitronics UMI-0370CU-B7 is a high-performance 37 kW variable frequency drive (VFD) designed for accurate speed and torque control of industrial three-phase AC motors. Operating on a 200–240 V three-phase power supply, this drive enables efficient motor management in applications such as pumps, conveyors, compressors and automated production machinery.

Part of the advanced UMI-B7 drive series, the inverter combines powerful motor control algorithms with flexible communication and integration capabilities. The B7 platform supports sensorless vector control, closed-loop vector control and SVPWM control modes, allowing engineers to achieve stable torque delivery, smooth acceleration and improved process efficiency.

Designed for seamless integration into modern automation systems, the drive features built-in Modbus RTU communication via RS-485 and supports optional communication cards for Ethernet and other industrial networks. This flexibility enables integration with PLC, HMI and distributed control systems.

Key Advantages

• 37 kW (50 HP) motor control suitable for heavy industrial equipment.
• 200–240 V three-phase input designed for low-voltage industrial power systems.
• Advanced vector motor control algorithms for precise speed and torque regulation.
• Built-in Safe Torque Off (STO) functional safety capability.
• Modbus RTU communication for PLC and automation integration.
• Expandable architecture supporting communication, encoder and I/O cards.

Key Features

• Variable frequency drive (VFD) for industrial AC motor speed control.
• Rated motor power: 37 kW / 50 HP.
• Input voltage: 200–240 V AC three-phase.
• Output frequency range up to 400 Hz.
• Integrated Modbus RTU RS-485 communication.
• Multiple analogue and digital I/O for flexible system integration.
• Removable keypad with graphical display for configuration and monitoring.
• Supports asynchronous induction motors and permanent-magnet synchronous motors.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B7 Variable Frequency Drives
• Model: UMI-0370CU-B7
• Rated motor power: 37 kW (50 HP)
• Input voltage: 200–240 V AC, three-phase
• Input frequency: 50 / 60 Hz (47–63 Hz)
• Output frequency range: 0–400 Hz
• Control methods: SVPWM, sensorless vector control (SVC), closed-loop vector control (VC)
• Supported motors: Asynchronous induction motors and PMSM motors
• Overload capacity: 150% for 60 s, 180% for 10 s, 200% for 1 s
• Communication: Modbus RTU RS-485 with optional expansion cards
• Protection rating: IP20
• Cooling method: Forced air cooling

Industrial Motor Control and Automation

Variable frequency drives regulate motor speed by adjusting the frequency and voltage supplied to the motor. This enables improved energy efficiency, smoother machine operation and reduced mechanical wear compared with fixed-speed motor systems. The UMI-B7 platform supports both induction and permanent-magnet motors, providing flexibility for a wide range of automation applications.

Typical Applications

• Industrial pumps and water management systems.
• HVAC fans and ventilation systems.
• Conveyor and material handling equipment.
• Compressors and industrial processing machinery.
• Packaging and automated production systems.

Trusted by Automation Engineers

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