Axial roof fan

DZD 30/6 B Ex e

Article number: 0087.0798
Manufacturer: MAICO
Axial roof fan, horizontal air outlet, DN 300, three-phase AC, explosion proof
Application examples: Environment with explosion hazard (zone 1 and 2), Dye shop, Battery room, Workplace, Storage facility
DZD 30/6 B Ex e IM0009964.PNG Axial roof fan, horizontal air outlet, DN 300, three-phase AC, explosion proof
DZD 30/6 B Ex e IM0017898.PNG Axial roof fan, horizontal air outlet, DN 300, three-phase AC, explosion proof

Characteristic curve

DZD 30/6 B Ex e - Characteristic curve

  • DZD 30/6 B Ex e IM0001381.PNG Axial roof fan, horizontal air outlet, DN 300, three-phase AC, explosion proof

Dimensioned drawing

DZD 30/6 B Ex e - Dimensioned drawing [mm]

  • DZD 30/6 B Ex e IM0001636.PNG Axial roof fan, horizontal air outlet, DN 300, three-phase AC, explosion proof

Technical data

DZD 30/6 B Ex e - Technical data

Article DZD 30/6 B Ex e
Air flow volume 940 m³/h
Rotating speed 985 1/min
Impeller type axial
Air direction Ventilation and air extraction
Speed controllable
Reversing capacity
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 25 W
cosφ 0,27
Inom 0,12 A
Imax at UNominal 0,12 A
Degree of protection IP 64
Insulation class F
Installation site Roof
Installation position vertical
Housing material Sheet steel, galvanised
Weight 19,7 kg
Nominal size 300 mm
Width 660 mm
Height 375 mm
Depth 660 mm
EX designation in accordance with the ATEX Directive Ex II 2 G
EX designation in accordance with standard Ex eb IIB + H2 T4 Gb
Ta ambient temperature -20 °C ≤ Ta ≤ +40 °C
IA/IN 3,4
Time tA 1390 sek
Operating mode S1
PTC DIN 44082 M 80
EC type examination certificate EX5 03 06 39250 007
Temperature class T4
Temperature class of insulating materials Th. Cl. 155 (F)
Packing unit 1 piece
Range C
GTIN (EAN) 4012799877981
Article number 0087.0798


63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz


LWA5, high (dB(A))


LWA5= free inlet sound power level in dB.

Product description


DZD 30/6 B Ex e

short description

Axial roof fan, horizontal air outlet, DN 300, three-phase AC, explosion proof

Product description


  • Explosion protection in accordance with ATEX.
  • Ex II 2G Ex e IIB+H2 T3/T4 Gb.
  • For usage temperatures of -20°C ≤ Ta ≤ +40°C.
  • MAICO Ex fans fulfil the safety requirements of European Directive 2014/34/EU for units and protective systems in explosion-endangered areas.
  • For zone 1 and 2.
  • Base plate, intake nozzle and rain protection cover made of galvanised sheet steel.
  • Horizontal air outlet direction.
  • Sturdy eyebolts enable transport by crane.
  • Can be switched to ventilation or air extraction.
  • Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.


  • Robust motor with ball bearings, maintenance-free.
  • Motor protection class IP 54.

Electrical connection

  • Connecting cable, approx. 1.7 m long.
  • Separate terminal box, explosion proof, with cable screw-connections.

Safety instructions

  • Speed control permitted with transformer TR.... Exception: DZ.. 35/2 B Ex e.
  • The temperature in the fan unit is monitored by PTC thermistors. The PTC thermistors must be connected to a triggering system (safety device according to Directive 2014/34/EU), that separates the fan permanently from the power if the temperature gets too hot.
  • The MAICO PTC thermistor triggering device MVS 6 or TMS is recommended as the triggering system.
  • The fan may be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN ISO 13857 for fans with free inlet and outlet, e.g. with an SG protective grille.

Special versions

  • Special voltages are available as special versions on request, at an extra cost.
  • Information on operation at temperatures occasionally below -20 °C available upon request.
  • Feasibility must be checked in each case.

Table of contents

Wiring diagram

DZD 30/6 B Ex e - Wiring diagram

Predecessor - successor

DZD 30/6 B Ex e - Predecessor

Product typeNameArt. No.Action
Axial roof fanDZD 30/6 A-ExNo longer available for delivery0087.0765
  • On the notes

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