Axial duct fan

EZL 25/2 B

No longer available for delivery
Article number: 0086.0070
Manufacturer: MAICO
Axial duct fan, DN 250, alternating current
Application examples: Machine extraction unit, Workplace air extraction system, Workshop, Foreman's office, Production site
EZL 25/2 B IM0014274.PNG Axial duct fan, DN 250, alternating current

Characteristic curve

EZL 25/2 B - Characteristic curve

Dimensioned drawing

EZL 25/2 B - Dimensioned drawing [mm]

Number of flange holes: 6

Technical data

EZL 25/2 B - Technical data

Article EZL 25/2 B
Model Stabiliser
Air flow volume 2.140 m³/h
Speed controllable
Reversing capacity
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz
Imax 1,7 A
Degree of protection IP 55
Insulation class B
Installation position vertical / horizontal
Material Sheet steel, galvanised
Weight 11,5 kg
Nominal size 250 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) 4012799860709
Article number 0086.0070
Article EZL 25/2 B
Total efficiency η 39,4 %
Measurement category D
Efficiency category total
Efficiency level N 50,5
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. 0086.0070
PBEP / Air volumeBEP / Pfs, BEP 0,175 kW / 1.485 m³/h / 167 Pa
nBEP 2.920 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 -
IBEP 1 A
Sound power levelLWA5 77 dB(A)

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA2, S1 (dB(A))

11

35

35

38

42

39

33

27

46

LWA2, S2 (dB(A))

22

40

48

49

54

51

46

39

58

LWA2, S3 (dB(A))

31

44

55

56

57

53

47

27

64

LWA2, S4 (dB(A))

30

47

53

59

62

59

55

49

66

LWA2, S5 (dB(A))

35

51

52

62

66

61

56

50

69

LWA5, S1 (dB(A))

22

42

54

55

53

55

48

35

61

LWA5, S2 (dB(A))

27

45

71

60

66

67

62

51

74

LWA5, S3 (dB(A))

37

48

78

70

71

72

67

58

80

LWA5, S4 (dB(A))

37

52

68

79

76

74

69

60

82

LWA5, S5 (dB(A))

36

56

65

79

83

75

70

61

85

LWA6, S1 (dB(A))

26

41

51

59

57

58

51

38

63

LWA6, S2 (dB(A))

37

45

62

70

70

70

67

61

76

LWA6, S3 (dB(A))

42

49

70

75

76

76

72

65

82

LWA6, S4 (dB(A))

45

52

69

78

78

78

73

65

84

LWA6, S5 (dB(A))

46

56

68

79

83

79

74

65

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

EZL 25/2 B - Accessories

General accessories

Product type Name Art. No. Price*(EUR) Action
Shutter AS 25 0151.0331 on request
  • On the notes
Shutter, manual RS 25 0151.0339 on request
  • On the notes
Servomotor MS 2 0093.0403 on request
  • On the notes
Control shutter JRE 25 0151.0390 on request
  • On the notes
Servomotor MS 8 0157.0760 on request
  • On the notes
Servomotor MS 8 P 0157.0761 on request
  • On the notes
Protective grille, metal SG 25 0150.0115 on request
  • On the notes
Protective grille, synthetic material SGK 25 0059.0162 on request
  • On the notes
Flexible coupling ELA 25 0092.0266 on request
  • On the notes
Flexible cuff EL 25 0092.0088 on request
  • On the notes
Counter flange GF 25 0056.0003 on request
  • On the notes
Counter socket GS 25 0055.0169 on request
  • On the notes
Suction nozzle AD 25 0180.0620 on request
  • On the notes
Mounting foot FU 25 0036.0070 on request
  • On the notes
Vibration damper GP 10 0092.0151 on request
  • On the notes
Speed controller STU 2,5 No longer available for delivery 0157.0815 on request
  • On the notes
Speed controller, distribution board STS 2,5 No longer available for delivery 0157.0255 on request
  • On the notes
5-step transformer TRE 3,3-2 0157.0159 on request
  • On the notes
5-step transformer, control cabinet TRE 3,3 S-2 0157.0163 on request
  • On the notes
5-step switch for TRE...S -2/ TR...S-2 5-step transformers ESS 20 0157.0749 on request
  • On the notes
Temperature control system EAT 6 G/1 0157.0808 on request
  • On the notes
Temperature control system EAT 6 TG 0157.0755 on request
  • On the notes
Mounting and sealing material BD 25 No longer available for delivery 0092.0133 on request
  • On the notes
Speed controller ST 2,5 No longer available for delivery 0157.0811 on request
  • On the notes
Automatic timer ZA 4 No longer available for delivery 0157.0426 on request
  • On the notes

Product description

Productdescription

EZL 25/2 B

short description

Axial duct fan, DN 250, alternating current

Product description

Features

  • Duct sleeve made of galvanised sheet steel, with flanges and guided vanes 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 24154, page 2, 7/66.
  • DZL 56/6 B and DZL 56/4 B: Flange holes in accordance with DIN 24145, part 2, 7/90.
  • High degree of protection IP 55.
  • To prevent transfer of vibrations onto the duct system: Use flexible couplings, feet and vibration dampers.
  • Can be fitted in any position.

Motor

  • Asynchronous motor, speed controllable. Exception: Type DZL 40/2 B.
  • Not suitable for ventilating steam-saturated air.
  • EZL / DZL duct fans are non reversible.

AC motor

  • EZL series
  • Rated voltage 230 V, 50 Hz.
  • Thermal overload protection as a standard feature.
  • Potential-free terminal connection, which must be connected to e.g. an MVE 10 full motor protection switch or the control circuit of a contactor.
  • Capacitor motors with operating capacitor ready for use in terminal box.

Electrical connection

  • Terminal box with cable sleeves fitted on the outside.

Safety instructions

  • The fan can be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN 13857 for fans with a free inlet.

Special versions

  • The following special versions are available at extra cost on request:
    • Special voltages and frequencies.
    • Single-phase motors with thermal contacts or PTC thermistor, with potential-free terminal connections.
    • 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

EZL 25/2 B - Wiring diagram

EZL...B with contactor switching (self-holding)

S1 - Off switch

S2 - On switch

Q1 - US 16 T contactor



EZL...B with contactor switching (self-holding) and ST / STU / STS speed controller

S1 - Off switch

S2 - On switch

Q1 - US 16 T contactor



EZL...B with MVE 10 motor protection switch


EZL...B with ST / STU / STS speed controller and MVE 10 full motor protection switch


EZL...B with TRE... 5-step transformer and MVE 10 motor protection switch


EZL...B with TRE... 5-step transformer

S1 - Off switch

S2 - On switch

Q1 - US 16 T contactor



Predecessor - successor

EZL 25/2 B - Successor

Product type Name Art. No. Action
Axial duct fan EZR 25/2 B 0086.0002
  • On the notes

Notes
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