Axial wall fan

EZS 20/4 E Ex e

Article number: 0094.0200
Manufacturer: MAICO
Axial wall-mounted fan with steel wall ring, DN200, AC, explosion-proof, medium: gas
Application examples: Environment with explosion hazard (zone 1 and 2), Dye shop, Battery room, Laboratory, Workplace
Product data sheet
EZS 20/4 E Ex e IM0016749.PNG Axial wall-mounted fan with steel wall ring, DN200, AC, explosion-proof, medium: gas
EZS 20/4 E Ex e IM0019950.PNG Axial wall-mounted fan with steel wall ring, DN200, AC, explosion-proof, medium: gas
EZS 20/4 E Ex e IM0017898.PNG Axial wall-mounted fan with steel wall ring, DN200, AC, explosion-proof, medium: gas
Back
  • On the notes
EZQ 20/4 E Ex e
EZS 20/4 E Ex e

Characteristic curve

EZS 20/4 E Ex e - Characteristic curve

Dimensioned drawing

EZS 20/4 E Ex e - Dimensioned drawing [mm]

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

Technical data

EZS 20/4 E Ex e - Technical data

Article EZS 20/4 E Ex e
Model Steel wall ring
Air flow volume 440 m³/h
Rotating speed 1.340 1/min
Impeller type axial
Speed controllable −
Reversing capacity −
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz
Nominal output 45 W
cosφ 0,61
Inom 0,33 A
Imax at UNominal 0,34 A
Degree of protection IP 64
Insulation class B
Installation site Wall / Ceiling
Type of installation Surface-mounted
Installation position vertical / horizontal
Material Sheet steel, galvanised
Housing material Sheet steel, galvanised
Colour galvanised
Weight 3,36 kg
Weight including packaging 4,02 kg
Nominal size 200 mm
Width 345 mm
Height 345 mm
Depth 170,5 mm
Width with packaging 320 mm
Height with packaging 320 mm
Depth with packaging 280 mm
EX designation in accordance with the ATEX Directive Ex II 2 G
EX designation in accordance with standard Ex eb IIB + H2 T3 Gb / Ex h IIB + H2 T3 Gb
Ta ambient temperature -20 °C ≤ Ta ≤ +40 °C
IA/IN 1,5
Time tE 300 sek
Operating mode S1
EC type examination certificate TÜV-A 18ATEX0053 X, IECEx EPS 19.0021X
Temperature class T3
Temperature class of insulating materials Th. Cl. 130 (B)
Packing unit 1 piece
Range C
GTIN (EAN) 4012799942009
Article number 0094.0200

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA7, high (dB(A))

–

–

–

–

–

–

–

–

57

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

Accessories

EZS 20/4 E Ex e - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Motor protection switch MVEx 0,4 0157.0547 on request
  • On the notes
Differential pressure switch DDEx 500 0157.0302 on request
  • On the notes
Vibration sensor SWEx 0157.0303 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Shutter AS 20 Ex New development 0151.0402 on request
  • On the notes
Connection frame ZVR 20 0093.0191 on request
  • On the notes
External grille MLZ 20 0151.0101 on request
  • On the notes
Extension sleeve VH 20 0055.0030 on request
  • On the notes

Product description

Productdescription

EZS 20/4 E Ex e

short description

Axial wall-mounted fan with steel wall ring, DN200, AC, explosion-proof, medium: gas

Product description

Product model

  • AC motor
  • Ex II 2G Ex eb IIB+H2 T3 Gb / Ex II 2G Ex h IIB+H2 T3 Gb.
  • For usage temperatures of -20°C ≤ Ta ≤ +40°C.
  • Suitable for temperature classes T1 - T3 (200 °C).

Special features

  • Axial wall fan, explosion-proof, medium: gas.
  • Explosion protection and approvals in accordance with ATEX and IECEx.
  • Qualified for all gases and vapours of Ex group IIA and IIB and also for hydrogen.
  • MAICO Ex fans fulfil the safety requirements of European Directive 2014/34/EU for units and protective systems in potentially explosive atmospheres.
  • For zones 1 and 2.
  • Types of ignition protection: “e”- increased safety 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 e with square wall plate.
  • EZS / DZS .. Ex e 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.

AC motor

  • Shaded-pole motor (with ball bearing, maintenance-free) is installed on the fan, ready for connection.
  • S1 operating mode (continuous operation).
  • Non-reversible.
  • No speed control allowed.
  • Ensure overload protection with MAICO motor protection switch MVEx 0.4.

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.

EZQ/EZS 20 E Ex .. required safety technology

  • A motor protection switch is needed to fuse the EZQ/EZS-Ex units.
  • Maico provides the MVEx 0.4 motor protection switch to monitor the motor current for this purpose.

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

EZS 20/4 E Ex e - Wiring diagram



Predecessor - successor

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