Helios VDD 250/4 EX

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Product details

The Helios VDD 250/4 EX is a powerful vertical roof fan specifically designed for use in explosive environments. With a robust housing made of seawater-resistant aluminum and a newly developed high-performance radial impeller, this fan provides efficient air circulation of up to 1280 m³/h. The fan is suitable for operation in Ex zones and meets the stringent requirements of the ATEX directives. The integrated three-phase external rotor motor allows for precise speed control and ensures maintenance-free operation. The design also includes a base plate made of galvanized steel, facilitating easy installation of accessories. The Helios VDD 250/4 EX is therefore a reliable solution for ventilation technology in demanding environments.

  • High-performance radial impeller with backward-curved blades for optimal efficiency
  • Speed-controllable three-phase external rotor motor for flexible application
  • Robust housing made of seawater-resistant aluminum with break-in protection
  • Maintenance-free operation thanks to ball bearings with moisture protection insulation
  • Suitable for use in Ex zones according to ATEX directives.

Key specifications

Max. Air flow rate
1280 m³/h

General information

Item number
33738067
Manufacturer
Helios
Category
Ventilation technology
Manufacturer No.
07265
Release date
17.5.2023

Material

Material group
Metal
Material
Aluminium

Ventilation technology Features

Max. Air flow rate
1280 m³/h
Suitable for pipe diameter
250 mm

Power supply

Power
370 W

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂ emissions
3.42 kg
Climate contribution
CHF 0.11

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Ventilation technology» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 4.Maico
    0.1 %
  • 4.Suprex
    0.1 %
  • 7.Helios
    0.2 %
  • 7.vidaXL
    0.2 %
  • 9.Sugatsune
    0.4 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Helios
    Not enough data
  • Bird
    Not enough data
  • Bosch Home Comfort
    Not enough data
  • Cata
    Not enough data
  • Europlast
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Ventilation technology» category returned?

Source: Digitec Galaxus
  • 7.PHB
    2.6 %
  • 9.Sugatsune
    2.7 %
  • 10.Helios
    3 %
  • 11.Suprex
    4.1 %
  • 11.Wallair
    4.1 %
Source: Digitec Galaxus