• FRQ5S-4A+LED V2 3-Phase Fan Speed Controller with 5-Step Switch and Integrated All-Pole Sine Filter, IP54, 208-480V, 4A
  • FRQ5S-4A+LED V2 3-Phase Fan Speed Controller with 5-Step Switch and Integrated All-Pole Sine Filter, IP54, 208-480V, 4A

FRQ5S-4A+LED V2 3-Phase Fan Speed Controller with 5-Step Switch and Integrated All-Pole Sine Filter, IP54, 208-480V, 4A

Regular price £1,666.84
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Description
  • 5-Step Speed Control: Step0=0Hz; Step1=10Hz; Step2=20Hz; Step3=30Hz; Step4=40Hz; Step5=50Hz, for precise fan speed management.
  • Integrated Sine Filter: All-pole effective filter allows existing non-shielded cables to be used, reducing installation complexity.
  • Motor Protection: Connect thermostats (TB) or thermistors (TP) for reliable and safe operation of external rotor and other sensitive motors.
  • Durable & Flexible: IP54-rated enclosure with wide voltage range (208–480V, 50/60Hz) suitable for retrofit installations and parallel motor operation.
  • Interference-Compliant & Silent: Meets EN 61000-6-2/6-3 standards, ensures operation without electromagnetic motor noise, voltage peaks, or bearing current issues.

The FRQ5S-4A+LED V2 is a reliable 3-phase fan speed controller designed for both new and retrofit installations. Featuring a 5-step switch (0-50Hz) and integrated all-pole sine filter, this unit allows the use of existing non-shielded cables while ensuring smooth, trouble-free motor operation. Ideal for controlling external rotor motors and other motors typically unsuitable for frequency inverters, it offers motor protection through thermostat or thermistor connections, interference immunity, and parallel operation capability. With a wide voltage range of 208–480V, IP54 enclosure, and compact, durable construction, the FRQ5S-4A+LED V2 delivers efficient, silent performance in demanding applications.


  • Product Code: 36233
  • Voltage: 208–480V, 3~
  • Frequency: 50/60 Hz
  • Max Current: 4 A
  • Recommended Fuse: 10 A
  • Enclosure Class: IP54
  • Ambient Temperature: Up to 40°C
  • Material: High-quality industrial-grade plastic and metal components
  • Weight: 5.4 kg
  • Colour: Grey/Black
  • Dimensions: 200mm x 150mm x 120mm

Delivery time: 3-5 working days.


Your purchase includes a 1-year Veralis warranty, offering complete assurance in the quality and longevity of your product. From internal components to craftsmanship and performance, every part of your device is protected. Should you experience any issue during everyday use, our dedicated support team will provide quick and reliable assistance, ensuring you receive a seamless solution with minimal disruption to your comfort.



  • Whisper-Quiet Operation

    Enjoy cleaner air and consistent comfort without any distracting noise.

  • Precision Airflow Engineering

    Enjoy clean, balanced comfort throughout your space.

  • Smart Energy Optimisation

    Our systems automatically adjust their output when needed

  • Built For Modern Living

    Beautiful to look at, effortless to use, and engineered to last.

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