• Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection
  • Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection
  • Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection
  • Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection
  • Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection
  • Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection

Round Electric Duct Heater 400mm 9kW 400V 3 Phase – Standard Range CB 400-9.0 Heater Battery with Overheat Protection

Regular price £624.94
£624.94
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Description
  • Efficient Duct Heating Performance: Designed for installation in standard spiral ventilation ducts, this electric heater provides consistent heating output of 9 kW for effective air temperature control.
  • Durable Industrial Construction: Manufactured from Aluzinc coated sheet steel with a stainless steel heating element to ensure long lasting durability and resistance to corrosion.
  • Built In Overheating Protection: Integrated safety system with manual reset function helps protect the unit from overheating and ensures safe operation in ventilation systems.
  • Flexible Installation Options: Can be installed in both horizontal and vertical duct systems. When mounted horizontally, the connection box must face upward or sideways for proper operation.
  • Secure Airtight Duct Connection: Rubber seals on the connecting spigots provide tight and secure duct connections, helping maintain system efficiency and airflow performance.

The round electric duct heater is designed for efficient air heating in ventilation systems using standard spiral ducts. Manufactured from durable Aluzinc-coated sheet steel with a stainless steel heating element, this heater delivers reliable performance and long service life. It features integrated overheating protection with a manual reset function to ensure safe operation. The unit includes rubber seals on the connection spigots for secure and airtight duct installation. Suitable for control via a room thermostat or pulser controller, this heater requires a minimum air velocity of 1.5 m/s and a minimum airflow of 700 m3 per hour. It supports both horizontal and vertical duct installation and is engineered to maintain a maximum output air temperature of 50 degrees C, making it ideal for controlled indoor ventilation heating applications.


  • Product Type: Round Electric Duct Heater
  • Model: CB 400-9.0
  • Product Code: 5392
  • Heating Output: 9 kW
  • Voltage: 400 V
  • Phase: 3 Phase
  • Duct Diameter: 400 mm
  • Minimum Airflow: 700 m3 per hour
  • Minimum Air Velocity: 1.5 m/s
  • Maximum Output Air Temperature: 50 C
  • Material: Aluzinc coated sheet steel housing with stainless steel heating element
  • Colour: Metallic silver
  • Installation: Horizontal or vertical duct installation
  • Overheat Protection: Manual reset safety protection
  • Dimensions: 400 mm duct diameter compatible unit
  • Weight: 8 kg

Our team will ship your order within 5 business days. The time it takes to receive your order depends on the shipping method chosen at checkout. 

We hope you will love it, but if you need to make a return, breathe easy. Returns are always free and can be done via. our support team.


Your purchase includes a 2-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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