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UMI-S0031 Unitronics UMI-B1 0.75-2.2kW 3P IN FLT C3
MPN: UMI-S0031
Alt. SKU: UMIS0031
Special Price
£8.93
£7.44
Regular Price
£10.50
Why Choose the Unitronics UMI-S0031 EMC Input Filter?
The Unitronics UMI-S0031 is an industrial EMC C3 input filter designed to minimise electromagnetic interference generated by variable frequency drives (VFDs). Installed between the mains supply and the inverter, the filter suppresses conducted electrical noise and helps automation systems meet IEC / EN 61800-3 electromagnetic compatibility standards.
Engineered for use with Unitronics B1-series drives, the UMI-S0031 supports three-phase 200-240 V or 380-480 V AC systems. It is typically used with drives rated between 0.75 kW and 2.2 kW (1–3 HP), making it suitable for small motor control applications in industrial automation, machinery and process equipment.
By filtering switching noise at the inverter input, the UMI-S0031 helps protect nearby electronic equipment such as PLCs, sensors and communication networks from interference while ensuring stable operation of industrial control panels.
Key Features
- EMC C3 input filter for small industrial variable frequency drives.
- Reduces electromagnetic interference (EMI) generated by inverter switching.
- Designed for three-phase 200-240 V / 380-480 V AC power systems.
- Compatible with Unitronics B1-series VFDs.
- Supports drives rated approximately 0.75 kW – 2.2 kW (1–3 HP).
- 7 A rated current for small industrial drive installations.
- Helps installations comply with IEC / EN 61800-3 EMC standards.
- Compact housing suitable for installation inside control cabinets.
Technical Specifications
- Manufacturer: Unitronics
- Model: UMI-S0031
- Product type: EMC input filter
- Filter class: C3
- Supply voltage: 200-240 V / 380-480 V AC
- Phase configuration: Three phase (3AC)
- Rated current: 7 A
- Drive power range: approx. 0.75 kW – 2.2 kW
- Typical motor rating: 1 – 3 HP
- Standards compliance: IEC / EN 61800-3
- Mounting: Wall or panel mounting
- Protection rating: IP20
- Operating temperature: −10 °C to +50 °C
Typical Applications
- Industrial motor control systems using variable frequency drives.
- Small automation machines and manufacturing equipment.
- Conveyor systems, pumps and fan control applications.
- Automation panels with sensitive control electronics.
- Industrial installations requiring suppression of inverter electrical noise.
Frequently Asked Questions
What is the UMI-S0031 used for?
The UMI-S0031 is an EMC input filter designed to reduce electrical interference generated by small variable frequency drives in industrial automation systems.
Which drives is this filter compatible with?
It is designed for Unitronics B1-series drives rated approximately 0.75 kW to 2.2 kW.
Where is the filter installed?
The filter is installed between the mains power supply and the inverter input to suppress conducted electromagnetic interference.
Why are EMC filters required with VFDs?
Variable frequency drives generate high-frequency switching noise. EMC filters reduce this interference and help systems meet EMC standards such as IEC / EN 61800-3.
Can this filter be used with single-phase drives?
No. The UMI-S0031 is designed for three-phase drive installations.
Trusted by Automation Engineers
Unitronics EMC filters such as the UMI-S0031 help maintain reliable inverter performance while ensuring electromagnetic compatibility in industrial automation environments.
| Packed Quantity | 1 |
|---|---|
| Manufacturer | Unitronics |
| Manufacturer Part Number | UMI-S0031 |
| Alternative Product SKU | UMIS0031 |
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