Unitronics UMI-0370EU-B7 variable frequency drive, a 37 kW three phase 380-480 V AC VFD with integrated Safe Torque Off functionality for industrial motor control and automation systems.
Why Choose the Unitronics UMI-0370EU-B7 Variable Speed Drive?
The Unitronics UMI-0370EU-B7 is a high-performance AC variable frequency drive (VFD) designed for precise speed, torque and position control of three-phase motors in demanding industrial automation systems. As part of the advanced Unitronics UMI-B7 series, it delivers enhanced control precision, flexible communication and seamless integration into PLC and HMI environments.
This drive provides advanced motor control functionality while helping improve process performance, energy efficiency and equipment reliability. The UMI-B7 series supports modern automation requirements with integrated safety, flexible control modes and communication options for connected industrial systems.
With a rated output power of 37 kW (50 HP) and a three-phase 380–480 V AC supply, the UMI-0370EU-B7 is ideal for heavy-duty industrial motors used in conveyors, pumps, compressors, mixers and production machinery. Integrated Safe Torque Off (STO) functionality provides enhanced machine safety and helps simplify system design.
Key Advantages
High-performance variable frequency drive for industrial automation.
37 kW (50 HP) motor power rating for demanding machinery applications.
Three-phase 380–480 V AC input compatible with industrial power systems.
Integrated Safe Torque Off (STO) safety function.
Advanced vector control for precise speed, torque and position regulation.
Flexible connectivity for PLC, HMI and automation network integration.
Efficient motor control helps reduce energy use and mechanical wear.
Key Features
Unitronics UMI-B7 variable frequency drive series.
37 kW / 50 HP rated output power.
Approx. 75 A nominal output current.
Three-phase 380–480 V AC input supply.
Integrated Safe Torque Off (STO) functionality.
Sensorless vector control and closed-loop vector control capability.
RS-485 Modbus RTU communication with optional Ethernet expansion.
Suitable for induction and permanent magnet motor control.
Panel-mounted design for industrial control cabinets.
Reliable Motor Control for Industrial Machinery
Variable frequency drives such as the Unitronics UMI-0370EU-B7 regulate motor speed by adjusting output voltage and frequency. This allows machinery to operate more efficiently while improving process precision, reducing starting current and lowering mechanical stress on motors and driven equipment.
The UMI-B7 series is designed for industrial automation engineers and machine builders that require powerful motor control, integrated safety and flexible system connectivity. Its communication options and advanced control modes make it suitable for both standalone machine control and networked automation systems.
Typical Applications
Heavy-duty industrial conveyors and material handling systems.
Pumps, fans and ventilation equipment.
Compressors and process machinery.
Mixers, agitators and production equipment.
Packaging and manufacturing machinery.
OEM automation systems and machine building.
Technical Specifications
Power
37 kW
Current
75 A
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
UMI-B7
Product type
AC variable frequency drive
Rated output power
37 kW / 50 HP
Rated output current
approx. 75 A
Input voltage
380–480 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
0–400 Hz
Control methods
V/f, SVPWM, sensorless vector control, closed-loop vector control
Safety function
Safe Torque Off (STO)
Protection rating
IP20
Cooling method
Forced air cooling
Mounting type
Cabinet / panel mounting
EMC Filter
None
Frequently Asked Questions
What is the Unitronics UMI-0370EU-B7 used for?
This drive controls the speed and torque of three-phase AC motors used in industrial automation and heavy-duty machinery applications.
What motor power is supported by this drive?
The drive supports motors with a rated output power of approximately 37 kW (50 HP).
What supply voltage does the drive require?
The UMI-0370EU-B7 operates from a three-phase 380–480 V AC supply.
Does this drive include Safe Torque Off?
Yes, the drive includes integrated Safe Torque Off (STO) functionality for enhanced machine safety.
Where is this drive typically installed?
The drive is typically installed inside industrial electrical control panels or machine cabinets as part of automation systems.
Trusted by Automation Engineers Worldwide
Unitronics UMI-B7 variable frequency drives are widely used by automation engineers and OEM machine builders to deliver reliable motor control, efficient operation and seamless integration into modern industrial equipment.
Power
37 kW
Current
75 A
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
UMI-B7
Product type
AC variable frequency drive
Rated output power
37 kW / 50 HP
Rated output current
approx. 75 A
Input voltage
380–480 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
0–400 Hz
Control methods
V/f, SVPWM, sensorless vector control, closed-loop vector control
Safety function
Safe Torque Off (STO)
Protection rating
IP20
Cooling method
Forced air cooling
Mounting type
Cabinet / panel mounting
EMC Filter
None
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...