Ex fans
with GreenTech EC technology

Save energy safely.

Innovation in the Ex field. ebm-papst presents the first EC fans with explosion protection.

ATEX applications can finally benefit from the advantages of modern EC technology, because ebm-papst is the first manufacturer in the world to develop highly efficient GreenTech EC fans specifically for the Ex field. These are available as axial and centrifugal fans with backward-curved impeller blades. This is based on our many outstanding HyBlade® and RadiPac product ranges, which have set global standards in terms of efficiency, noise characteristics and compactness.

Axial fans are available in sizes 630-990 with up to 33,000 m³/h

Centrifugal fans in sizes 400-630 with up to 15,000 m³/h.

All the advantages at a glance

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Thanks to a perfect plug & play system, the fans are ready for use in no time. This saves time and money:

  • Perfectly coordinated components
  • Pre-wired and parameterized
  • No separate variable frequency drive and motor protection switch required
  • Includes declaration of conformity for motor and electronics

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GreenTech EC technology and system solutions also significantly reduce lifecycle costs:

  • Quick and easy commissioning
  • Highly efficient GreenTech EC motor that even surpasses the IE4 efficiency class
  • On average, 30 % lower energy consumption than AC technology

Atmosphère Explosive The European directive on explosion protection

Certified safety

ebm-papst Ex fans are based on the tried-and-tested 3 kW GreenTech EC external rotor motor and are tested and certified in accordance with the European Product Directive ATEX 94/9/EC. Therefore, they meet all requirements for devices in areas at risk of explosion. The axial and centrifugal Ex fans are suitable for equipment group II (areas at risk of explosion outside of mining) and for the explosion group IIB gases and vapors substance group.

Our Ex fans can be used in hazard zones 1 and 2. Therefore, they correspond to category 2G (ATEX) and have the equipment protection level Gb (EN 60079-0).

The facility operator is responsible for on-site classification of the hazard zones as per ATEX 1999/92/EC. The manufacturer, i.e. ebm-papst, categorizes the device.

atex tabelle de 800

All the information about EC medium pressure


Axial fan EC prototype test certificate

Two brochures entitled “Maximize performance even with sizes 630 and 710? Yes! AxiBlade – your ebm-papst solution”

Brochure: Ex fans with EC technology – save energy safely


Centrifugal fan EC prototype test certificate

Two product ranges – one drive

Geräte mit Spiegelung und Schatten versehen, farblich überarbeitet und in den Raum gestellt.
Ausgang W3G800_Titelseite, W3G800_Explosion_Elektronik, K3G650_Titelseite, K3G650_Explosion_Motor und Raum

HyBlade® Axialventilator


  • Integrated nozzle shape on intake side
  • Blade profiling that improves efficiency levels
  • High efficiency
  • Low noise levels

Rugged design

  • Nozzle plate made of sendzimir galvanized sheet steel, painted

Flexible installation

  • Option for horizontal or vertical motor shaft

Innovative materials

  • Blades made of glass-fiber reinforced composite material
  • Core made of corrosion-resistant aluminum structure

Minimal vibration

  • Motor impeller unit dynamically balanced in two levels

Explosion protection

  • Impeller strength exceeds standard requirement
  • Pre-set ring gap between nozzle and impeller guaranteed in accordance with ATEX 94/9/EC standard
  • Earth connection for discharging electrostatic charges
  • Impeller blades with special anti-static surface
  • Safe steel-plastic material pairing according to EN14986

RadiPac Radialventilator


  • High static efficiency
  • Aerodynamically optimized blade channel
  • Low noise emissions
  • Diagonal trailing edge for optimum flow control
  • Integrated radial diffuser
  • Inlet ring tuned to impeller

Operating performance

  • Minimal vibration
  • Dynamic balancing of motor impeller-rotor unit
  • Minimal structure-borne noise
  • Low impeller weight reduces bearing load

Rugged design

  • Stable mounting frame in cube shape
  • Suitable for constantly high peripheral speeds
  • Corrosion-resistant aluminum
  • Blades that have been entirely robot-welded

Explosion protection

  • Impeller strength exceeds standard requirement
  • Pre-set ring gap between nozzle and impeller guaranteed in accordance with ATEX 94/9/EC standard
  • Safe aluminum-aluminum material pairing according to EN14986

GreenTech EC-Motor

Unrivaled compactness

  • Impeller mounted directly on the external rotor
  • No external variable frequency drive required thanks to EC technology

High efficiency

  • Low copper and iron losses
  • Synchronous running prevents slip losses
  • No magnetic hysteresis losses in the rotor due to permanent magnets

Economical operation

  • High partial-load operation thanks to optimized commutation
  • High efficiency even in partial-load operation
  • Long service life thanks to maintenance-free ball bearings and brushless commutation

Sustainable operation

  • Magnets without rare earths

Explosion protection

  • Ignition protection type "increased safety" in the motor area according to Atex

Elektronik groß

Simple commissioning

  • Parameterization at the factory
  • Central terminal area for supply connection, alarm relay, control system and bus system


  • Speed infinitely adjustable
  • Control signal 0–10 V DC, PWM, 4–20 mA and MODBUS-RTU
  • Integrated PID controller

Explosion protection

  • Pressure-resistant enclosure for power electronics
  • ATEX-certified spring-type terminal strip (special tool omitted)
  • Optimized heat dissipation
  • Additional protection and sensor electronics thanks to Ex-approved components (cable glands, etc.)

Would you like more information?
Our ventilation and air conditioning specialists would be pleased to get in touch with you.