• Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393
  • Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393
  • Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393
  • Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393
  • Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393
  • Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393

Round 400mm 12kW 400V Three Phase Duct Heater Electric Heating Battery for Spiral Ventilation Ducts with Overheat Protection Minimum Airflow 700 m3 per Hour Product Code 5393

Regular price £705.89
£705.89
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Description
  • Efficient 12kW Heating Output: Provides powerful and consistent heating for ventilation duct systems, helping maintain comfortable air temperatures in commercial or industrial ventilation setups.
  • Durable Industrial Construction: Built from high quality aluzinc coated sheet steel with a stainless steel heating element, ensuring long lasting durability and resistance to corrosion.
  • Integrated Overheating Protection: Equipped with a built in safety system that automatically protects the unit from overheating and includes a manual reset for safe operation.
  • Compatible with Spiral Duct Systems: Designed with spigot connections and rubber seals for easy and secure installation in standard round spiral ventilation ducts.
  • Flexible Installation Options: Suitable for both horizontal and vertical duct installations when mounted according to recommended positioning guidelines for the connection box.

This round 400mm electric duct heater is designed for efficient heating within standard spiral ventilation duct systems. Manufactured from durable aluzinc coated sheet steel and equipped with a stainless steel heating element, the unit delivers a reliable 12kW heating output powered by a 400V three phase electrical supply. The heater includes integrated overheating protection with a manual reset function to ensure safe and controlled operation. Rubber seals on the connecting spigots provide secure and airtight duct connections. Designed for installation in both horizontal and vertical ducts, the heater must be mounted with the connection box facing upward or sideways when installed horizontally. With a required minimum airflow of 700 cubic meters per hour and a minimum air velocity of 1.5 meters per second, the heater is engineered to maintain a maximum outlet air temperature of 50 degrees Celsius, making it suitable for controlled ventilation heating applications.


  • Product Type: Electric Duct Heater
  • Heating Output: 12 kW
  • Voltage: 400 V
  • Phase: Three Phase
  • Frequency: 50 Hz
  • 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
  • Installation Type: Horizontal or Vertical Duct Installation
  • Safety Feature: Integrated Overheat Protection with Manual Reset
  • Connection Type: Spigot Connection with Rubber Seals
  • Colour: Metallic Silver
  • Weight: 8.5 kg
  • Dimensions: Approximately 400 mm duct diameter with compact heater housing
  • Product Code: 5393

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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