Axial duct fan

DZR 40/6 B Ex t

Article number: 0086.0729
Manufacturer: MAICO
Axial duct fan, DN400, three-phase AC, explosion-proof, medium: dust

Product data sheet
DZR 40/6 B Ex t IM0009991.PNG Axial duct fan, DN400, three-phase AC, explosion-proof, medium: dust
DZR 40/6 B Ex t IM0019950.PNG Axial duct fan, DN400, three-phase AC, explosion-proof, medium: dust
DZR 40/6 B Ex t IM0017898.PNG Axial duct fan, DN400, three-phase AC, explosion-proof, medium: dust

Characteristic curve

DZR 40/6 B Ex t - Characteristic curve

Dimensioned drawing

DZR 40/6 B Ex t - Dimensioned drawing [mm]

Number of flange holes: 12

Technical data

DZR 40/6 B Ex t - Technical data

Article DZR 40/6 B Ex t
Air flow volume 2.770 m³/h
Rotating speed 985 1/min
Speed controllable
Reversing capacity
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 95 W
cosφ 0,25
Inom 0,54 A
Imax at UNominal 0,55 A
Degree of protection IP 64
Insulation class F
Material Sheet steel, galvanised
Colour galvanised
Weight 14,4 kg
Weight including packaging 16,29 kg
Nominal size 400 mm
Width 523 mm
Height 523 mm
Depth 370 mm
Width with packaging 500 mm
Height with packaging 400 mm
Depth with packaging 515 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
Time tA 240 sek
Operating mode S1
PTC DIN 44082 M 100
EC type examination certificate TÜV-A 19 ATEX0103 X, IECEx EPS 19.0019X
Temperature class T135°C
Temperature class of insulating materials Th. Cl. 155 (F)
Packing unit 1 piece
Range C
GTIN (EAN) 4012799867296
Article number 0086.0729

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA5, high (dB)

69

LWA5= free inlet sound power level in dB.

Product description

Productdescription

DZR 40/6 B Ex t

short description

Axial duct fan, DN400, three-phase AC, explosion-proof, medium: dust

Product description

Product model

  • For usage temperatures of -20°C ≤ Ta ≤ +40°C.

Special features

  • Axial duct fan, explosion-proof, medium: dust.
  • Explosion protection and approvals in accordance with ATEX and IECEx.
  • Ex II 2 D Ex tb IIIB T135°C/T200°C Db IP64 X / Ex II 2 D Ex h IIIB T135°C/T200°C Db X.
  • Operating temperatures depend on temperature class: T135°C -20 °C ≤ Ta ≤ +40 °C, T200°C -20 °C ≤ Ta ≤ +60 °C.
  • 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 zone 21 and 22.
  • Types of ignition protection: “t” - protection through housing and “c”- constructional safety.
  • IP 64 degree of protection.
  • Can be switched to ventilation or air extraction.
  • Duct sleeve made of galvanised sheet steel, with flange on both sides – hole pattern according to DIN 24155
  • For easy and direct installation in a duct system.
  • Can be fitted in any position.

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.

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: DZR 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

  • Terminal box mounted on the fan, explosion-proof, with cable screw connections.

Required safety technology

  • A PTC thermistor triggering device is needed to fuse the DZR-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.

Safety information

  • 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 40/6 B Ex t - Wiring diagram



Predecessor - successor

DZR 40/6 B Ex t - Predecessor

Product type Name Art. No. Action
Axial duct fan DZR 40/6 A-Ex No longer available for delivery 0086.0775
  • On the notes

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