Axial wall fan

DZS 25/42 B

Article number: 0094.0041
Manufacturer: MAICO
Axial wall fan with steel wall ring, DN 250, three-phase AC, pole-changeable
Application examples: Production facility, Commercial premises, Garage, Building container, Storage facility
Product data sheet
DZS 25/42 B IM0009968.PNG Axial wall fan with steel wall ring, DN 250, three-phase AC, pole-changeable

Characteristic curve

DZS 25/42 B - Characteristic curve

Dimensioned drawing

DZS 25/42 B - Dimensioned drawing [mm]

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

Technical data

DZS 25/42 B - Technical data

Article DZS 25/42 B
Model Steel wall ring
Air flow volume 1.050 m³/h / 2.190 m³/h
Air volumenom 745 m³/h / 1.550 m³/h / in opt. efficiency
Pressure pfs, nom 35 Pa - 140 Pa / in opt. efficiency
Rotating speed nnom 1.430 1/min - 2.810 1/min / in opt. efficiency
Rotating speed 1.450 1/min / 2.860 1/min
Impeller type axial
Speed controllable
Reversing capacity
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 38 W / 203 W / in opt. efficiency
Inom 0,1 A / 0,35 A / in opt. efficiency
Imax 0,5 A
Degree of protection IP 55
Insulation class B
Pole-changeable
Number of poles at high speed 2
Number of poles at low speed 4
Mains cable 5 x 1,5 mm²
Installation site Wall / Ceiling
Type of installation Surface-mounted
Installation position horizontal / vertical
Material Sheet steel, galvanised
Colour Silver
Weight 7,12 kg
Weight including packaging 8,1 kg
Nominal size 250 mm
Width 400 mm
Height 400 mm
Depth 261 mm
Width with packaging 420 mm
Height with packaging 420 mm
Depth with packaging 290 mm
Airstream temperature at nominal current -20 °C up to 60 °C
Airstream temperature at IMax -20 °C up to 60 °C
Packing unit 1 piece
Range C
GTIN (EAN) 4012799940418
Article number 0094.0041
Article DZS 25/42 B
Total efficiency η 29,7 %
Measurement category A
Efficiency category static
Efficiency level N 40,4
VSD necessary No
Year of manufacture see rating plate
Manufacturer’s name / official registration number / manufacturer's place of establishment Maico Elektroapparate-Fabrik GmbH / Freiburg registration court, HRB 601233 / Villingen-Schwenningen
Art. No. 0094.0041
PBEP / Air volumeBEP / Pfs, BEP 0,203 kW / 1.550 m³/h / 140 Pa
nBEP 2.810 1/min
Specific ratio ≈ 1
Information about dismantling and disposal see mounting instructions
Information about installation, operation and repairs see mounting instructions
Objects used to measure efficiency which are not described by the measurement category -
Sound power levelLWA7 63 dB(A) / 80 dB(A)

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA7, low (dB(A))

24

34

49

57

56

57

54

42

63

LWA7, high (dB(A))

41

47

56

71

74

76

72

64

80

LWA8, low (dB(A))

37

39

53

57

63

63

65

63

70

LWA8, high (dB(A))

54

61

64

75

76

77

76

72

83

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

LWA8= housing and free outlet sound power level in dB.

Product description

Productdescription

DZS 25/42 B

short description

Axial wall fan with steel wall ring, DN 250, three-phase AC, pole-changeable

Product description

Three-phase AC model

  • Axial wall fan with steel wall ring, in three-phase AC version.

Brief description

  • For surface mounting.
  • Protective grille on the intake side, protection against accidental contact in accordance with DIN EN ISO 13857.
  • 8-blade impellers made of glass fibre reinforced polyamide
  • Thermal overload protection as a standard feature.
  • Fans meet the requirements of the European Ecodesign Directive (EC) No.327/2011 Directive 2009/125/EC.
  • Vibration-free running due to dynamically balanced impeller and motor (shaft-rotor), according to quality class 6.3, DIN ISO 1940, part 1.
  • High efficiency on the ventilation side, low operating noise.
  • Increased durability due to high-quality materials such as quiet ball bearings.
  • Fans are maintenance-free.
  • Installation for ventilation and air extraction possible in any position.

Air flow direction

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

Three-phase AC motor

  • DZQ/DZS type series.
  • Asynchronous motor.
  • Not suitable for ventilating steam-saturated air.
  • Rated voltage 400 V, 50 Hz.
  • IP 55 degree of protection. Exception for type DZQ ... D IP 54.
  • Speed-controllable. Exception for type DZQ 40/2 B and DZS 40/2 B.
  • Units can be switched in steps with an optional 5-step transformer.
  • Reversible.
  • Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.
  • Thermal overload protection as a standard feature. Exception for type DZQ/DZS 25/4 D and pole-changeable axial duct fans, available on request.
  • Potential-free terminal connections, which must be connected, e.g., to an MV 25-1 motor protection switch or the control circuit of a contactor.
  • Pole-changeable fans: Ensure overload protection is guaranteed by a motor protection switch provided by the customer.
  • Pole-changeable motors with speed ratios of 8/4 or 4/2 have a Dahlander pole-changing circuit.

Electrical connection

  • On terminal block in end cover of the motor.

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, e.g., with Maico SG protective grille.

Special versions

  • The following special versions are available on request, at an extra cost:
    • Special voltages and frequencies.
    • Single-phase motors with thermal contacts or PTC thermistor, potential-free terminal connection.
    • Condensation drainage holes.
    • Fans with enhanced anti-corrosion protection.
    • Impellers made of aluminium.
  • Information on operation at temperatures occasionally below -20°C available upon request.
  • If operating with frequency converters, the factory must be consulted.
  • Feasibility must be checked in each case.

Table of contents

Wiring diagram

DZS 25/42 B - 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