Axial wall fan

DZS 50/6 B Ex e

Article number: 0094.0128
Manufacturer: MAICO
Axial wall fan with steel wall ring, DN 500, three-phase AC, explosion proof
Application examples: Environment with explosion hazard (zone 1 and 2), Dye shop, Battery room, Laboratory, Workplace
DZS 50/6 B Ex e IM0008702.PNG Axial wall fan with steel wall ring, DN 500, three-phase AC, explosion proof
DZS 50/6 B Ex e IM0017898.PNG Axial wall fan with steel wall ring, DN 500, three-phase AC, explosion proof

Characteristic curve

DZS 50/6 B Ex e - Characteristic curve

Dimensioned drawing

DZS 50/6 B Ex e - Dimensioned drawing [mm]

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

Technical data

DZS 50/6 B Ex e - Technical data

Article DZS 50/6 B Ex e
Model Steel wall ring
Air flow volume 5.320 m³/h
Rotating speed 960 1/min
Impeller type axial
Speed controllable
Reversing capacity
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 165 W
cosφ 0,41
Inom 0,56 A
Imax at UNominal 0,73 A
Degree of protection IP 54
Insulation class F
Installation site Wall / Ceiling
Type of installation Surface-mounted
Installation position vertical / horizontal
Housing material Sheet steel, galvanised
Weight 14,3 kg
Nominal size 500 mm
Width 700 mm
Height 700 mm
Depth 270 mm
EX designation in accordance with the ATEX Directive Ex II 2 G
EX designation in accordance with standard Ex e IIB + H2 T4 Gb
Ta ambient temperature -20 °C ≤ Ta ≤ +40 °C
IA/IN 3,1
Time tA 240 sek
Operating mode S1
PTC DIN 44082 M 100
EC type examination certificate EX5 03 06 39250 007
Temperature class T4
Temperature class of insulating materials Th. Cl. 155 (F)
Packing unit 1 piece
Range C
GTIN (EAN) 4012799941286
Article number 0094.0128

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA7, high (dB(A))

73

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

Accessories

DZS 50/6 B Ex e - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
PTC thermistor triggering device MVS 6 0157.0585 on request
  • On the notes
Machine protection relay thermistor TMS 0157.0992 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Shutter AS 50 0151.0336 on request
  • On the notes
Connection frame ZVR 50 0093.0197 on request
  • On the notes
Extension sleeve VH 50 0055.0035 on request
  • On the notes
5-step transformer TR 0,8-2 0157.0148 on request
  • On the notes
5-step transformer, control cabinet TR 0,8 S-2 0157.0151 on request
  • On the notes
5-step switch for TRE...S -2/ TR...S-2 5-step transformers DSS 20 0157.0750 on request
  • On the notes

Product description

Productdescription

DZS 50/6 B Ex e

short description

Axial wall fan with steel wall ring, DN 500, three-phase AC, explosion proof

Product description

Features

  • Explosion protection in accordance with ATEX.
  • Ex II 2G Ex e IIB+H2 T3/T4 Gb.
  • 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 explosion-endangered areas.
  • For zones 1 and 2.
  • Model series
    • EZQ...-Ex e, DZQ...-Ex e with square wall plate.
    • EZS...-Ex e, DZS...-Ex e with steel wall ring.
  • Protective grille on the intake side, yellow chromated, protection against accidental contact in accordance with DIN EN ISO 13857.
  • Can be fitted in any position.

Air flow direction

The following illustration shows the air flow direction.

  1. Air flow direction A: With air drawn across the motor, standard
  2. Air flow direction B: With air blown across the motor, available on request
  3. Rotational direction

Motor

  • Robust motor with ball bearings, maintenance-free.

Three-phase AC motor

  • Separate terminal box, explosion proof, with cable screw-connections.
  • Reversible.
  • Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.
  • Speed control permitted with transformer TR.... Exception: DZ.. 35/2 B Ex e
  • The temperature in the fan unit 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

  • EZQ/EZS 20 E Ex e: Connecting cable, approx. 0.5 m long.
  • DZQ/DZS ... Ex e: Connecting cable, approx. 1.7 m long.
  • Separate terminal box, explosion proof, with cable screw-connections.

DZQ/DZS-Ex required safety technology

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

DZS 50/6 B Ex e - Wiring diagram



Predecessor - successor

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