Axial wall fan

DZQ 20/2 B Ex t

Article number: 0083.0201
Manufacturer: MAICO
Axial wall-mounted fan with square wall plate, DN200, three-phase AC, explosion-proof, medium: dust

Product data sheet
DZQ 20/2 B Ex t IM0008701.PNG Axial wall-mounted fan with square wall plate, DN200, three-phase AC, explosion-proof, medium: dust
DZQ 20/2 B Ex t IM0019950.PNG Axial wall-mounted fan with square wall plate, DN200, three-phase AC, explosion-proof, medium: dust
DZQ 20/2 B Ex t IM0017898.PNG Axial wall-mounted fan with square wall plate, DN200, three-phase AC, explosion-proof, medium: dust
Back
  • On the notes
DZQ 20/4 B Ex t
DZS 20/4 B Ex t
DZQ 20/2 B Ex t
DZS 20/2 B Ex t

Characteristic curve

DZQ 20/2 B Ex t - Characteristic curve

Dimensioned drawing

DZQ 20/2 B Ex t - Dimensioned drawing [mm]

  1. Steel wall plate = EZQ/DZQ model
  2. Steel wall ring = EZS/DZS model

Technical data

DZQ 20/2 B Ex t - Technical data

Article DZQ 20/2 B Ex t
Model Square wall plate
Air flow volume 1.090 m³/h
Rotating speed 2.950 1/min
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
Type of installation Surface-mounted
Material Sheet steel, galvanised
Colour galvanised
Weight 7,1 kg
Weight including packaging 8,25 kg
Nominal size 200 mm
Width 345 mm
Height 345 mm
Depth 220,5 mm
Width with packaging 415 mm
Height with packaging 415 mm
Depth with packaging 300 mm
EX designation in accordance with the ATEX Directive Ex II 2 D
EX designation in accordance with standard Ex tb IIIB T135°C Db IP64 X / Ex h IIIB T135°C Db X
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 TÜV-A 19 ATEX0102 X, IECEx EPS 19.0018X
Temperature class T135°C
Temperature class of insulating materials Th. Cl. 155 (F)
Packing unit 1 piece
Range C
GTIN (EAN) 4012799832010
Article number 0083.0201

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA7, high (dB(A))

–

–

–

–

–

–

–

–

75

LWA7= housing and free inlet sound power level in dB.

Product description

Productdescription

DZQ 20/2 B Ex t

short description

Axial wall-mounted fan with square wall plate, DN200, three-phase AC, explosion-proof, medium: dust

Product description

Product model

  • Three-phase AC motor
  • Ex II 2D Ex tb IIIB T135°C/T200°C Db IP64 X / Ex II 2D Ex h IIIB T135°C/T200°C Db X.
  • For usage temperatures of -20°C ≤ Ta ≤ +40°C.
  • Can be switched to ventilation or air extraction.

Special features

  • Axial wall fan, explosion-proof, medium: dust.
  • Explosion protection and approvals in accordance with ATEX and IECEx.
  • Qualified for all dusts of the Ex-group IIIA and IIIB.
  • MAICO Ex fans fulfil the safety requirements of European Directive 2014/34/EU for units and protective systems in potentially explosive atmospheres.
  • For zones 21 and 22.
  • Types of ignition protection: “t” - protection through housing and “c”- constructional safety.
  • IP 64 degree of protection.
  • Protective grille on the intake side, protection against accidental contact in accordance with DIN EN ISO 13857.
  • Can be fitted in any position.

Model series

  • EZQ / DZQ .. Ex t with square wall plate.
  • EZS / DZS .. Ex t with steel wall ring.

Impeller

  • Axial impeller made of conductive plastic.
  • Balance quality of the motor/impeller combination G 6.3 according to category BV-3 in accordance with ISO 14694.

Air flow direction

  • The air flow direction is marked.
  • Standard exhaust air mode, air flow direction with air drawn across motor.

Three-phase AC motor

  • Robust three-phase AC motor with ball bearings, maintenance-free.
  • Reversible.
  • Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.
  • S1 operating mode (continuous operation).
  • Speed control permitted with TR... transformer. Exception: DZ.. 35/2 B Ex...
  • The temperature in the fan motor 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.

Electrical connection

  • EZ .. Ex ..: Connection cable, approx. 0.5 m long.
  • DZ .. Ex ..: Connection cable, approx. 1.7 m long.
  • Separate terminal box, explosion-proof, with cable screw connection.

DZQ/DZS Ex .. required safety technology.

  • A PTC thermistor triggering device is needed to fuse the DZQ/DZS-Ex units.
  • Maico provides the MVS 6 PTC thermistor triggering device and TMS for this purpose.
  • MVS 6 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 thermistor machine protection relay.
    • 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.

Special versions

  • Special voltages are available as special versions on request and at 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

DZQ 20/2 B Ex t - Wiring diagram



Predecessor - successor

DZQ 20/2 B Ex t - Predecessor

Product type Name Art. No. Action
Axial wall fan DZQ 20/2 A-Ex No longer available for delivery 0083.0756
  • On the notes

Notes
Inquiry
Product comparison
The wish list option allows you to make a note of all the products you are interested in. You can change your wish list as often as you want to. You can change the quantity and item position of the products, go back to the product page, download product data sheets, delete items and mark products as optional. You can save your wish list to your computer and then call it up again at a later time to make more changes, if required. Using the list, you can then download the tender text for all the products you have saved to the list, create an enquiry or compare products.
Assort Product type Name Art. No. PDF Range List price* (EUR) Quantity Optional Total gross amount (EUR)
There are no products on the list
Save wish list on local computer
Load wish list from local computer

On this website, technologies such as cookies and measurements of reach (targeting and tracking) are used (services). This means that personal information such as the IP address and browser information is processed to continuously improve our website as well as to display to you customised content that corresponds to your individual interests. You may of course influence the use of this information through the settings you choose. The settings you have chosen are stored in a necessary selection cookie. With the exception of the selection cookie mentioned above, technically non-essential cookies and measurements of reach are only used if you provide permission in advance by clicking “ACCEPT ALL AND CLOSE”. Details and options for customising your consent can be found under Data protection settings.

Here you can select a variety of different categories of services or cookies. By activating the corresponding “Statistics & analytics” checkbox and confirming “Save settings”, you can give your informed consent to the use of cookies for customisation purposes. At the bottom of the website under “Data protection settings”, you can change or revoke your consent and settings for the individual services at any time with effect for the future.

Necessary cookies are absolutely necessary for the operation of the website. Without these cookies, the website would not function properly.

These cookies and services collect and process data for statistics and analytics and thus enable further improvements of this website for users. Google Analytics and Google Adwords Conversion are used for this purpose. You will find a detailed description of such use in our Privacy Policy.

Save settings ACCEPT ALL AND CLOSE Data protection settings
Data protection