Unitronics UMI-0300CU-B7 variable frequency drive featuring 30 kW output power, three-phase 200–240 V AC input, advanced vector motor control and integrated Safe Torque Off functionality for industrial automation applications.
Why Choose the Unitronics UMI-0300CU-B7 Variable Speed Drive?
The Unitronics UMI-0300CU-B7 is a high-performance AC variable frequency drive (VFD) engineered for accurate speed, torque and position control of three-phase motors in demanding industrial automation applications. As part of the advanced Unitronics UMI-B7 drive series, it is designed to provide reliable motor control, seamless PLC integration and enhanced process efficiency for machine builders and industrial engineers.
Featuring advanced control technologies including sensorless vector control (SVC), closed-loop vector control and SVPWM motor control, the UMI-0300CU-B7 delivers smooth operation, precise motor performance and optimised energy efficiency. The drive supports integration with modern automation systems through built-in communication capabilities and optional Ethernet expansion.
With a rated output power of 30 kW (40 HP) and a three-phase 200–240 V AC supply, the UMI-0300CU-B7 is ideal for conveyors, pumps, compressors, mixers and heavy-duty industrial machinery. Integrated Safe Torque Off (STO) functionality provides enhanced safety while simplifying compliance with machine safety requirements.
Key Advantages
High-performance variable frequency drive for industrial automation.
30 kW (40 HP) motor power rating for demanding applications.
Three-phase 200–240 V AC input suitable for industrial installations.
Integrated Safe Torque Off (STO) safety functionality.
Advanced vector control for precise speed and torque regulation.
Expandable platform with Ethernet-ready communication options.
Supports both induction and permanent magnet motors.
Key Features
Unitronics UMI-B7 series.
30 kW (40 HP) rated output power.
Three-phase 200–240 V AC input supply.
Sensorless vector control (SVC), closed-loop vector control and V/f control modes.
Integrated Safe Torque Off (STO) functionality.
RS-485 Modbus RTU communication.
Optional Ethernet and fieldbus communication expansion.
Supports asynchronous induction and permanent magnet motors.
Expandable I/O, encoder and communication card capability.
Advanced Motor Control for Industrial Applications
The Unitronics UMI-0300CU-B7 regulates motor speed and torque by precisely controlling output voltage and frequency. This improves process accuracy, reduces mechanical stress on equipment and helps lower energy consumption across industrial systems.
The UMI-B7 series has been developed for modern automation environments where communication, flexibility and performance are critical. Its integration capabilities with PLCs, HMIs and industrial networks make it a suitable solution for both standalone machinery and fully connected Industry 4.0 systems.
Typical Applications
Industrial conveyors and material handling systems.
Pumps, compressors and process equipment.
Packaging and production machinery.
Mixers, agitators and processing systems.
HVAC and ventilation equipment.
OEM machinery and automation systems.
Technical Specifications
Power
30 kW
Current
110 A
Voltage
240 V
Phase
Three Phase
IP Rating
IP20
Series
UMI-B7
Product type
AC variable frequency drive
Rated output power
30 kW / 40 HP
Input voltage
200–240 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
0–400 Hz
Overload capacity
150% (60 s), 180% (10 s), 200% (1 s)
Control methods
SVPWM, sensorless vector control, closed-loop vector control
Safety function
Safe Torque Off (STO)
Protection rating
IP20
Cooling method
Forced air cooling
Mounting type
Panel or wall mounting
Operating temperature
Approx. -10°C to +50°C
EMC Filter
None
Frequently Asked Questions
What is the Unitronics UMI-0300CU-B7 used for?
The drive is used for controlling the speed, torque and operation of three-phase AC motors in industrial automation and machinery applications.
What motor power is supported by this drive?
The UMI-0300CU-B7 supports motors rated up to 30 kW (40 HP).
What supply voltage does the drive require?
The drive operates from a three-phase 200–240 V AC power supply.
Does the drive support communication with PLC systems?
Yes, it includes RS-485 Modbus RTU communication and supports optional Ethernet and fieldbus expansion modules.
What safety features are included?
The drive includes an integrated Safe Torque Off (STO) function to help achieve machine safety requirements.
Trusted by Automation Engineers Worldwide
Unitronics UMI-B7 variable frequency drives are widely used by OEMs and automation professionals to provide reliable motor control, improved efficiency and seamless integration within modern industrial control systems.
Power
30 kW
Current
110 A
Voltage
240 V
Phase
Three Phase
IP Rating
IP20
Series
UMI-B7
Product type
AC variable frequency drive
Rated output power
30 kW / 40 HP
Input voltage
200–240 V AC
Input phases
3-phase
Input frequency
50 / 60 Hz
Output frequency
0–400 Hz
Overload capacity
150% (60 s), 180% (10 s), 200% (1 s)
Control methods
SVPWM, sensorless vector control, closed-loop vector control
Safety function
Safe Torque Off (STO)
Protection rating
IP20
Cooling method
Forced air cooling
Mounting type
Panel or wall mounting
Operating temperature
Approx. -10°C to +50°C
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
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...