Axial duct fan

DZR 20/2 B Ex e

Article number: 0086.0700
Manufacturer: MAICO
Axial duct fan, DN 200, three-phase AC, explosion proof
Application examples: Environment with explosion hazard (zone 1 and 2), Workshop, Storage facility, Laboratory, Workplace air extraction system
DZR 20/2 B Ex e IM0009991.PNG Axial duct fan, DN 200, three-phase AC, explosion proof
DZR 20/2 B Ex e IM0017898.PNG Axial duct fan, DN 200, three-phase AC, explosion proof

Characteristic curve

DZR 20/2 B Ex e - Characteristic curve

Dimensioned drawing

DZR 20/2 B Ex e - Dimensioned drawing [mm]

Number of flange holes: 6

Technical data

DZR 20/2 B Ex e - Technical data

Article DZR 20/2 B Ex e
Air flow volume 1.050 m³/h
Rotating speed 2.950 1/min
Impeller type axial
Speed controllable
Reversing capacity
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 65 W
cosφ 0,4
Inom 0,23 A
Imax at UNominal 0,25 A
Degree of protection IP 64
Insulation class F
Installation position vertical / horizontal
Housing material Sheet steel, galvanised
Weight 7,2 kg
Nominal size 200 mm
Width 317 mm
Height 317 mm
Depth 240 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 7,3
Time tA 69 sek
Operating mode S1
PTC DIN 44082 M 100
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) 4012799867005
Article number 0086.0700

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA5, high (dB(A))

80

LWA5= free inlet sound power level in dB.

Accessories

DZR 20/2 B Ex e - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Flexible coupling ELA 20 Ex 0092.0274 on request
  • On the notes
Flexible cuff EL 20 Ex 0092.0231 on request
  • On the notes
PTC thermistor triggering device MVS 6 0157.0585 on request
  • On the notes
Machine protection relay thermistor TMS 0157.0992 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Protective grille, metal SG 20 0150.0114 on request
  • On the notes
Counter flange GF 20 0056.0002 on request
  • On the notes
Counter socket GS 20 0055.0168 on request
  • On the notes
Suction nozzle AD 20 0180.0628 on request
  • On the notes
Mounting foot FU 20 0036.0069 on request
  • On the notes
Vibration damper GP 10 0092.0151 on request
  • On the notes
Reversing switch W 1 0157.0101 on request
  • On the notes
Reversing switch WU 1 0157.0102 on request
  • On the notes
5-step transformer TR 0,4-2 0157.0147 on request
  • On the notes
5-step transformer, control cabinet TR 0,8 S-2 0157.0151 on request
  • On the notes
5-step switch for TRE...S -2/ TR...S-2 5-step transformers DSS 20 0157.0750 on request
  • On the notes
Mounting and sealing material BD 20 No longer available for delivery 0092.0132 on request
  • On the notes

Product description

Productdescription

DZR 20/2 B Ex e

short description

Axial duct fan, DN 200, three-phase AC, explosion proof

Product description

Features

  • 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.
  • Duct sleeve made of galvanised sheet steel, with flanges on both sides.
  • Can be fitted in any position.
  • Can be switched to ventilation or air extraction.
  • Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.

Motor

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

Electrical connection

  • Separate terminal box, explosion proof, with cable screw-connections.

Required safety technology

  • A PTC thermistor triggering device is needed to fuse the DZR-Ex e units.
  • Maico provides the MVS 6 PTC thermistor triggering device and TMS for this purpose.
  • MVS 6 PTC thermistor triggering device
    • Independent complete system.
    • For monitoring the maximum motor temperature.
    • Type-examination tested according to Directive 2014/34/EU (ATEX).
    • Installation exclusively in non-explosive areas.
  • TMS PTC thermistor triggering device
    • For monitoring the maximum motor temperature.
    • Suitable for installation in control cabinets.
    • Type-examination tested according to Directive 2014/34/EU (ATEX).
    • Installation exclusively in non-explosive areas.

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 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

DZR 20/2 B Ex e - Wiring diagram



Predecessor - successor

DZR 20/2 B Ex e - Predecessor

Product type Name Art. No. Action
Axial duct fan DZR 20/2 A-Ex No longer available for delivery 0086.0756
  • On the notes

Notes
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