Centrifugal roof fan

DRD V 45/4 Ex

Article number: 0073.0549
Manufacturer: MAICO
Centrifugal roof fan, vertical air outlet, nominal power 0.75 kW, three-phase AC, for use in potentially... more information
Application examples: Industrial building, Commercial hall
Product data sheet
DRD V 45/4 Ex IM0020643.PNG Centrifugal roof fan, vertical air outlet, nominal power 0.75 kW, three-phase AC, for use in potentially explosive atmospheres, medium: gas
DRD V 45/4 Ex IM0017898.PNG Centrifugal roof fan, vertical air outlet, nominal power 0.75 kW, three-phase AC, for use in potentially explosive atmospheres, medium: gas
Back
  • On the notes
ERD V 35/4 Ex
DRD V 35/4 Ex
ERD V 40/4 Ex
DRD V 40/4 Ex
DRD V 45/4 Ex
DRD V 50/4 Ex
DRD V 56/6 Ex
DRD V 63/6 Ex
DRD V 75/6 Ex
DRD V 80/6 Ex
DRD V 90/6 Ex

Characteristic curve

DRD V 45/4 Ex - Characteristic curve

Dimensioned drawing

DRD V 45/4 Ex - Dimensioned drawing [mm]

Technical data

DRD V 45/4 Ex - Technical data

Article DRD V 45/4 Ex
Air flow volume 7.596 m³/h
Rotating speed 1.460 1/min
Impeller type radial
Speed controllable ✔
Reversing capacity −
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 750 W
Inom 2 A
Degree of protection IP 55
Insulation class F
Pole-changeable −
Installation site Roof
Installation position vertical
Material Sheet steel, galvanised
Housing material Sheet steel, galvanised
Colour grey
Weight 50 kg
Weight including packaging 62 kg
Size 450 mm
Width 980 mm
Height 700 mm
Depth 980 mm
Width with packaging 1.020 mm
Height with packaging 715 mm
Depth with packaging 1.020 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) 4012799735496
Article number 0073.0549

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA5, S5 (dB(A))

49

78

80

81

82

78

80

68

88

LWA5= free inlet sound power level in dB.

Accessories

DRD V 45/4 Ex - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Machine protection relay thermistor TMS 0157.0992 on request
  • On the notes
Differential pressure switch DDEx 500 0157.0302 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Channel shutter VKRI HV 40-45 0073.0557 on request
  • On the notes
Protective grille SGRI 63 0073.0045 on request
  • On the notes
Socket sound absorber SDI 40-45 0073.0033 on request
  • On the notes
Socket sound absorber SDVI 40-45 0073.0037 on request
  • On the notes
Roof socket insulated, for flat roofs SOFI 40-45 0073.0049 on request
  • On the notes
Installation frame MRI 40-45 0073.0041 on request
  • On the notes

Product description

Productdescription

DRD V 45/4 Ex

short description

Centrifugal roof fan, vertical air outlet, nominal power 0.75 kW, three-phase AC, for use in potentially explosive atmospheres, medium: gas

Product description

Features

  • Centrifugal roof 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 zone 2
  • Types of ignition protection: “d” – pressure-proof housing and “c” – constructional safety.
  • Vertical air outlet.
  • Low noise level.
  • Housing made of galvanised sheet steel.
  • Plastic weather protection hood.
  • Motor outside of the air flow.
  • Sturdy eyebolts enable transport by crane.

Three-phase AC 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

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

Special versions

  • The following special versions are available on request, at an extra cost:
    • Versions with an operating frequency for 60 Hz.

Table of contents

Wiring diagram

DRD V 45/4 Ex - Wiring diagram



Predecessor - successor

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