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UMI-0004CU-B1 Unitronics | 0.4 kW 3 Phase 200-240VAC | VSD
MPN: UMI-0004CU-B1
Alt. SKU: UMI0004CUB1
Special Price
£223.13
£185.94
Regular Price
£262.50
Why Choose the Unitronics UMI-0004CU-B1 0.4 kW 0.5 HP Variable Frequency Drive
The Unitronics UMI-0004CU-B1 is a compact B1 Series variable frequency drive for efficient control of three phase motors at 200-240 V AC. With 0.4 kW rated output, vector control and built in Modbus RTU, it is a practical choice for OEMs and panel builders who need reliable speed control in a small footprint.
At a Glance
- Rated output: 0.4 kW 0.5 HP
- Supply: 200-240 V AC three phase, 50 or 60 Hz
- Rated current: 2.5 A nominal
- Output frequency: 0-400 Hz
- Control methods: SVPWM and Sensorless Vector Control
- Comms: RS-485 with Modbus RTU built in
- Enclosure: IP20, air cooled
- Dimensions: 185 x 80 x 140.5 mm
Key Benefits
- Small footprint, big capability: Vector control and wide 0-400 Hz range in a compact body for tight panels.
- Easy integration: Built in Modbus RTU for PLC links or SCADA monitoring and classic digital or analogue I O control.
- Robust performance: Heavy duty overload handling up to 200 percent for 1 second for tough starts and transients.
- Flexible installation: Wall or rail mounting options depending on frame and panel layout.
Technical Specifications
- Model: UMI-0004CU-B1
- Series: Unitronics B1 Series
- Rated power: 0.4 kW 0.5 HP
- Input: 200-240 V AC three phase, 50 or 60 Hz
- Rated output current: 2.5 A
- Output frequency: 0-400 Hz
- Overload capacity: 150 percent for 60 s, 180 percent for 10 s, 200 percent for 1 s
- Control methods: SVPWM and SVC sensorless vector
- Communication: Modbus RTU via RS-485
- Cooling: Air cooling
- Enclosure rating: IP20
- Mounting: Wall or rail mounting subject to frame size
- Dimensions W x H x D: 80 x 185 x 140.5 mm
- Operating temperature: minus 10 to plus 50 °C, apply de rating above 40 °C
- Standards: CE, UL, cULus, conforms to IEC 61800 3 and EN 61800 3
Typical Applications
- Fans, pumps and general HVAC movement
- Conveyors, feeders and light materials handling
- Packaging, labelling and small machine builds
- Process lines needing basic speed control and network visibility
Installation tip: Verify motor full load current against the drive rating, maintain clearance for airflow, set motor nameplate data and verify direction before commissioning. Use screened cable for RS-485 and follow Modbus termination practice.
Frequently Asked Questions
Is the UMI-0004CU-B1 suitable for standard three phase motors
Yes. It supports standard asynchronous induction motors. Configure motor nameplate values and use sensorless vector control for improved torque at low speed.
Does it include fieldbus or Ethernet out of the box
It includes RS-485 with Modbus RTU as standard. If you need Ethernet or a different bus, use an external gateway or pair with a PLC that offers the required protocol.
What overload can it handle
Heavy duty overload capability is 150 percent for 60 seconds, 180 percent for 10 seconds and 200 percent for 1 second, which helps with high inertia starts.
How do I mount and cool the drive
Use wall or rail mounting according to the panel design. Keep ventilation paths clear and follow the manual for minimum spacing to maintain airflow through the IP20 chassis.
What are the physical dimensions
The frame measures roughly 185 x 80 x 140.5 mm which fits compact control panels. Check your panel depth and cable bend radius before layout.
| Manufacturer Part Number | UMI-0004CU-B1 |
|---|---|
| Communication | MODBUS RTU RS-485 |
| Height | 185mm |
| Width | 80mm |
| Depth | 140.5mm |
| Amperage | 2.5A |
| Analog Input | 1 x 0-10V/0-20mA, 1x 0-10V |
| Analog Output | 1 X 0-10V, 0-20mA |
| Compliance | CE, cUL, TUV-SUD, UL |
| Control Method | SVPWM (Space Vector PWM), SVC (Sensorless Vector Control) |
| Coating PCB | Coated PCB |
| Control Panel | Film Keypad |
| Control Setting | Analog, Digital, MODBUS, PID, Pulse |
| Cooling | Air Cooling |
| Digital Inputs | 1 x 50kHz, 4 x 1kHz |
| Dynamic Breaking Unit | Optional |
| Filter | C3 Filter Optional |
| HP Rating | 0.5 |
| Input Phases | Three Phase |
| Input Frequency | 50/60Hz |
| Degree of protection (IP) | IP20 |
| KW Rating | 0.4kW |
| Output Frequency | 400Hz |
| Overload Capacity 150% | 60 Seconds |
| Overload Capacity 180% | 10 Seconds |
| Overload Capacity 200% | 1 Second |
| Output Phases | Three phase |
| Supported Motors | Asynchronous Induction Motors, Three Phase Input |
| Voltage | 200/240VAC |
| VSD Range | Unitronics B1 |
| Product Image | For Illustration Purposes Only |
| Manufacturer | Unitronics |
| Alternative Product SKU | UMI0004CUB1 |
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