• CB 400-6,0 Round Duct Heater– 6kW, 400V 3-Phase, 400mm, Aluminium/Steel, Minimum 700m³/h Airflow, Overheat Protection
  • CB 400-6,0 Round Duct Heater– 6kW, 400V 3-Phase, 400mm, Aluminium/Steel, Minimum 700m³/h Airflow, Overheat Protection

CB 400-6,0 Round Duct Heater– 6kW, 400V 3-Phase, 400mm, Aluminium/Steel, Minimum 700m³/h Airflow, Overheat Protection

Regular price £609.11
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Description
  • Power & Efficiency: 6kW heating output, 400V 3-phase, ensuring rapid and reliable duct heating for large air volumes.
  • Robust Construction: Made from Aluzinc-coated steel with stainless steel heating elements, designed for long-lasting performance.
  • Safety Features: Includes integral overheating protection with manual reset and secure rubber-sealed spigots.
  • Versatile Installation: Suitable for horizontal or vertical ducts (connection box facing upwards or rotated 90°); not for downward-facing installation.
  • Airflow Requirements: Minimum 700m³/h airflow (based on 1.5 m/s velocity), ideal for controlled heating via room thermostat or Pulser.

The Systemair CB 400-6,0 round duct heater is designed for efficient heating in standard spiral duct systems, offering 6kW output at 400V 3-phase power. Constructed from durable Aluzinc-coated steel with stainless steel heating elements, this heater provides reliable performance with integral overheating protection and a manual reset function for added safety. Equipped with rubber seals on spigots, it ensures a secure connection and can be installed in horizontal or vertical ducts (connection box facing upwards or rotated 90°). Suitable for control via room thermostat or Pulser, it maintains optimal airflow with a minimum air velocity of 1.5 m/s, producing a maximum output air temperature of 50°C. Ideal for both commercial and industrial applications, the CB 400-6,0 delivers consistent heating performance with long-lasting durability.


  • Product Code: 5391
  • Voltage: 400V 3-phase
  • Power: 6kW
  • Duct Diameter: 400mm
  • Airflow: Minimum 700m³/h
  • Material: Aluzinc-coated steel, stainless steel heating element]
  • Colour: Silver/Grey
  • Dimensions: 400mm diameter x 400mm depth
  • Weight: 7.2 kg

Delivery time: 2-3 weeks


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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