Axial duct fan

DAR 71/4-2 Ex

Article number: 0073.0351
Manufacturer: MAICO
Axial duct fan, DN 710, explosion-proof, nominal power 2.2 kW, motor variant 2, medium: gas
Application examples: Production facility, Workplace, Process exhaust air, Industrial building
Product data sheet
DAR 71/4-2 Ex IM0021313.PNG Axial duct fan, DN 710, explosion-proof, nominal power 2.2 kW, motor variant 2, medium: gas
DAR 71/4-2 Ex IM0017898.PNG Axial duct fan, DN 710, explosion-proof, nominal power 2.2 kW, motor variant 2, medium: gas
Back
  • On the notes
DAR 71/8 Ex
DAR 71/6 Ex
DAR 71/4-1 Ex
DAR 71/4-2 Ex

Characteristic curve

DAR 71/4-2 Ex - Characteristic curve

Dimensioned drawing

DAR 71/4-2 Ex - Dimensioned drawing [mm]

Technical data

DAR 71/4-2 Ex - Technical data

Article DAR 71/4-2 Ex
Model Motor variant 2
Air flow volume 16.378 m³/h
Rotating speed 1.440 1/min
Impeller type axial
Speed controllable ✔
Rated voltage 400 V
Frequency 50 Hz
Nominal output 2.200 W
Inom 5,5 A
Imax 4,8 A
Degree of protection IP 55
Insulation class F
Pole-changeable −
Installation site Duct connection
Installation position vertical / horizontal
Housing material Sheet steel, galvanised
Colour grey
Weight 52 kg
Weight including packaging 70 kg
Nominal size 710 mm
Width 810 mm
Height 520 mm
Depth 810 mm
Width with packaging 830 mm
Height with packaging 600 mm
Depth with packaging 830 mm
EX designation in accordance with the ATEX Directive Ex II 2 G
EX designation in accordance with standard Ex db IIB+H2 T4 Gb X / Ex h IIB+H2 T4 Gb X
Ta ambient temperature -20 °C ≤ Ta ≤ +40 °C
Operating mode S1
PTC DIN 44082 M 100
Temperature class T4
Packing unit 1 piece
Range C
GTIN (EAN) 4012799733515
Article number 0073.0351

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA5, S5 (dB(A))

56

67

83

81

82

80

77

72

88

LWA5= free inlet sound power level in dB.

Product description

Productdescription

DAR 71/4-2 Ex

short description

Axial duct fan, DN 710, explosion-proof, nominal power 2.2 kW, motor variant 2, medium: gas

Product description

Features

  • Axial duct fan for applications in areas subject to explosion hazards.
  • Explosion protection and approvals in accordance with ATEX.
  • Qualified for all gases and vapours of Ex group IIA and IIB and also for hydrogen.
  • Ex II 2 G Ex db IIB+H2 T4 Gb X / Ex II 2 G Ex h IIB+H2 T4 Gb X.
  • 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 potentially explosive atmospheres.
  • For zone 1 and 2.
  • Types of ignition protection: “d” – pressure-proof housing and “c” – constructional safety.
  • Powerful fan for large air volumes.
  • For easy and direct installation in a duct system.
  • Can be fitted in any position.
  • Housing made of sheet steel with epoxy coating.
  • Axial impellers made of glass-fibre reinforced, antistatic polyamide.

Air flow direction

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

Motor

  • Asynchronous three-phase AC motors.
  • IP 55 degree of protection.
  • IE3 motor.
  • S1 operating mode (continuous operation).
  • Temperature class T4.
  • Speed-controllable with frequency converter.
  • Permissible frequency range for speed control with frequency converter is 20 Hz to 50 Hz.
  • 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.

Electrical connection

  • Connection in the terminal box on the motor.
  • Cable screw connection, in Ex d version, included in the scope of delivery.

Table of contents

Wiring diagram

DAR 71/4-2 Ex - Wiring diagram



Predecessor - successor

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