Axial duct fan

DZR 25/2 B

Article number: 0086.0022
Manufacturer: MAICO
Axial duct fan, DN 250, three-phase AC
Application examples: Machine extraction unit, Showroom, Foreman's office, Workshop, Production site
DZR 25/2 B IM0009987.PNG Axial duct fan, DN 250, three-phase AC

Characteristic curve

DZR 25/2 B - Characteristic curve

  • DZR 25/2 B IM0002823.PNG Axial duct fan, DN 250, three-phase AC

Dimensioned drawing

DZR 25/2 B - Dimensioned drawing [mm]

  • DZR 25/2 B IM0001723.PNG Axial duct fan, DN 250, three-phase AC

Number of flange holes: 6

Technical data

DZR 25/2 B - Technical data

Article DZR 25/2 B
Air flow volume 2.190 m³/h
Air volumenom 1.580 m³/h / in opt. efficiency
Pressure pfs, nom 137 Pa / in opt. efficiency
Rotating speed nnom 2.280 1/min / in opt. efficiency
Rotating speed 2.913 1/min
Impeller type axial
Speed controllable
Reversing capacity
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 175 W / in opt. efficiency
Inom 0,35 A / in opt. efficiency
Imax 0,4 A
Degree of protection IP 55
Insulation class B
Pole-changeable
Mains cable 7 x 1,5 mm²
Installation position horizontal / vertical
Material Sheet steel, galvanised
Weight 9,3 kg
Nominal size 250 mm
Width 304 mm
Height 372 mm
Depth 300 mm
Airstream temperature at nominal current 60 °C
Airstream temperature at IMax 60 °C
Packing unit 1 piece
Range C
GTIN (EAN) 4012799860228
Article number 0086.0022
Article DZR 25/2 B
Total efficiency η 46,9 %
Measurement category D
Efficiency category total
Efficiency level N 58,2
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. 0086.0022
PBEP / Air volumeBEP / Pfs, BEP 0,163 kW / 1.810 m³/h
nBEP 2.890 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 -
pf, BEP 152 Pa
Sound power levelLWA5 82 dB(A)

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA2, S1 (dB(A))

53

LWA2, S2 (dB(A))

62

LWA2, S3 (dB(A))

66

LWA2, S4 (dB(A))

76

LWA2, S5 (dB(A))

35

46

52

62

67

64

61

54

70

LWA5, S1 (dB(A))

64

LWA5, S2 (dB(A))

76

LWA5, S3 (dB(A))

78

LWA5, S4 (dB(A))

83

LWA5, S5 (dB(A))

36

48

66

78

77

76

71

61

82

LWA6, S1 (dB(A))

69

LWA6, S2 (dB(A))

79

LWA6, S3 (dB(A))

82

LWA6, S4 (dB(A))

85

LWA6, S5 (dB(A))

48

52

69

81

81

80

76

71

86

LWA2= housing sound power level in dB.

LWA5= free inlet sound power level in dB.

LWA6= free outlet sound power level in dB.

Accessories

DZR 25/2 B - Accessories

General accessories

Product typeNameArt. No.Price*(EUR)Action
ShutterAS 250151.0331 on request
  • On the notes
Shutter, manualRS 250151.0339 on request
  • On the notes
ServomotorMS 20093.0403 on request
  • On the notes
Control shutterJRE 250151.0390 on request
  • On the notes
ServomotorMS 80157.0760 on request
  • On the notes
ServomotorMS 8 P0157.0761 on request
  • On the notes
Internal grilleIG 250059.0172 on request
  • On the notes
Protective grille, metalSG 250150.0115 on request
  • On the notes
Protective grille, synthetic materialSGK 250059.0162 on request
  • On the notes
Flexible couplingELA 250092.0266 on request
  • On the notes
Flexible cuffEL 250092.0088 on request
  • On the notes
Counter flangeGF 250056.0003 on request
  • On the notes
Counter socketGS 250055.0169 on request
  • On the notes
Suction nozzleAD 250180.0620 on request
  • On the notes
Mounting footFU 250036.0070 on request
  • On the notes
Vibration damperGP 100092.0151 on request
  • On the notes
Main switch, service switchHS 30157.0736 on request
  • On the notes
Rotary switchDS 100157.0410 on request
  • On the notes
Reversing switchW 10157.0101 on request
  • On the notes
Reversing switchWU 10157.0102 on request
  • On the notes
Motor protection switchMV 250157.0712 on request
  • On the notes
ContactorUS 16 T0157.0769 on request
  • On the notes
5-step transformerTR 0,8-20157.0148 on request
  • On the notes
5-step transformer, control cabinetTR 0,8 S-20157.0151 on request
  • On the notes
5-step switch for TRE...S -2/ TR...S-2 5-step transformersDSS 200157.0750 on request
  • On the notes
ThermostatTHR 100157.0774 on request
  • On the notes
ThermostatTH 100157.0764 on request
  • On the notes
ThermostatTH 160157.0748 on request
  • On the notes
Air flow monitorLW 90157.0779 on request
  • On the notes
HygrostatHY 2300157.0126 on request
  • On the notes
HygrostatHY 230 I0157.0127 on request
  • On the notes
HygrostatHY 10 APNo longer available for delivery0157.0358 on request
  • On the notes
HygrostatHY 10 UPNo longer available for delivery0157.0357 on request
  • On the notes
Air quality controllerEAQ 10/10157.0777 on request
  • On the notes
Mounting and sealing materialBD 25No longer available for delivery0092.0133 on request
  • On the notes

Product description

Productdescription

DZR 25/2 B

short description

Axial duct fan, DN 250, three-phase AC

Product description

Features

  • Duct sleeve made of galvanised sheet steel, with flanges on both sides.
  • 8-blade impellers made of glass-fibre filled polyamide. Dynamically balanced at two levels, in accordance with performance level 6.3, DIN ISO 1940, Part 1.
  • Flange holes in accordance with DIN EN 12220:1998.
  • DZR 56/6 B and DZR 56/4 B: Flange holes in accordance with DIN EN 12220:1998.
  • To avoid transmission of vibrations to the duct system: Use flexible couplings, feet and vibration dampers.
  • High degree of protection IP 55. Exception EZR/DZR... D IP 54.
  • Can be fitted in any position.

Motor

  • Asynchronous motor, speed controllable. Exception: Type DZR 40/2 B.
  • Not suitable for ventilating steam-saturated air.
  • Air flow direction is indicated on the unit with direction of rotation and air flow direction arrows.
  • Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.

Three-phase AC motor

  • DZR model series.
  • Rated voltage 400 V, 50 Hz.
  • Thermal overload protection as a standard feature. Exception: available on request for DZR 25/4 D and pole-changeable axial duct fans. Potential-free terminal connections, which must be connected to e.g. an MV 25 protective motor 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.

Electrical connection

  • Terminal box with cable sleeves fitted on the outside.

Safety instructions

  • The fan may be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN 13857.

Special versions

  • The following special versions are available on request, at an extra cost:
    • Special voltages and frequencies.
    • 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

DZR 25/2 B - Wiring diagram











Predecessor - successor

DZR 25/2 B - Predecessor

Product typeNameArt. No.Action
Axial duct fanDZL 25/2 BNo longer available for delivery0086.0080
  • On the notes

Notes
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