Axial roof fan

EZD 25/4 D

Article number: 0087.0487
Manufacturer: MAICO
Axial roof fan, horizontal air outlet, DN 250, alternating current
Application examples: Production facility, Workplace, Commercial premises, Restaurant, Showroom
EZD 25/4 D IM0009965.PNG Axial roof fan, horizontal air outlet, DN 250, alternating current

Characteristic curve

EZD 25/4 D - Characteristic curve

  • EZD 25/4 D IM0001650.PNG Axial roof fan, horizontal air outlet, DN 250, alternating current

Dimensioned drawing

EZD 25/4 D - Dimensioned drawing [mm]

  • EZD 25/4 D IM0001651.PNG Axial roof fan, horizontal air outlet, DN 250, alternating current

Technical data

EZD 25/4 D - Technical data

Article EZD 25/4 D
Air flow volume 750 m³/h
Rotating speed 1.425 1/min
Impeller type axial
Speed controllable
Reversing capacity
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz
Nominal output 35 W
Inom 0,14 A
Imax 0,16 A
Degree of protection IP 54
Insulation class B
Installation site Roof
Installation position vertical
Material Sheet steel, galvanised
Weight 11,7 kg
Nominal size 250 mm
Width 570 mm
Height 570 mm
Depth 325 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) 4012799874874
Article number 0087.0487

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA7, S5 (dB(A))

34

55

58

57

59

59

54

42

64

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

Accessories

EZD 25/4 D - Accessories

General accessories

Product typeNameArt. No.Price*(EUR)Action
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
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
Socket sound absorberSD 250092.0339 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
Step switchFS 40016.0104 on request
  • On the notes
Step switch, reversing switchFS 60016.0106 on request
  • On the notes
ContactorUS 16 T0157.0769 on request
  • On the notes
Speed controllerSTX 1,5New development0157.1561 on request
  • On the notes
Speed controllerST 1No longer available for delivery0157.0810 on request
  • On the notes
Reversing switchUWK 10157.0817 on request
  • On the notes
Speed controller, reversing switchSTW 10157.0813 on request
  • On the notes
5-step transformerTRE 0,4-20157.0156 on request
  • On the notes
5-step transformer, control cabinetTRE 1,6 S-20157.0162 on request
  • On the notes
5-step switch for TRE...S -2/ TR...S-2 5-step transformersESS 200157.0749 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
Temperature control systemEAT 6 G/10157.0808 on request
  • On the notes
Temperature control systemEAT 6 TG0157.0755 on request
  • On the notes
Air flow monitorLW 90157.0779 on request
  • On the notes
Air quality controllerEAQ 10/10157.0777 on request
  • On the notes
Roof socket for flat roofsSO 250093.0360 on request
  • On the notes
Roof socket for flat roofs, tiltableSOK 250093.0992 on request
  • On the notes
Roof socket for pitched roofsSDS 250093.0953 on request
  • On the notes
Roof socket for corrugated and trapezoidal roofsSOWT 250093.0985 on request
  • On the notes
Intermediate socketSZ 250092.0288 on request
  • On the notes
Speed controllerSTU 1No longer available for delivery0157.0814 on request
  • On the notes
Temperature control system, power moduleEALT 6No longer available for delivery0157.0756 on request
  • On the notes

Product description

Productdescription

EZD 25/4 D

short description

Axial roof fan, horizontal air outlet, DN 250, alternating current

Product description

Features

  • Housing, base plate, intake nozzle and rain protection cover made of galvanised sheet steel.
  • Galvanized protective grille on the discharge side, protection against accidental contact in accordance with DIN EN ISO 13857.
  • Sturdy eyebolts enable transport by crane.
  • 8-blade impeller made of glass-fibre filled polyamide. Dynamically balanced at two levels, in accordance with performance level 6.3, DIN ISO 1940, Part 1.
  • Can be switched to ventilation or air extraction (exception EZD ... E).

Air flow direction

  • The following illustration shows the air flow direction:
  1. Standard air flow direction: With air blown across the motor.
  2. Reversing mode: With air drawn across the motor.
  3. Reverse operation (exception EZD ... E): The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.

Motor

  • Asynchronous motor.
  • Reversible. Exception: Fans with shaded-pole motors (".../E").
  • Thermal overload protection as a standard feature.

AC motor

  • EZD model series.
  • Rated voltage 230 V, 50 Hz.
  • "../B" and "../D" fans: Capacitor motors with operating capacitor in terminal box.
  • "../E" fans: Shaded-pole motors, non reversible.
  • Degree of protection for EZD... D and ... E IP 54.
  • Degree of protection for EZD... B IP 55.

Electrical connection

  • Connecting cable, approx. 1.7 m long.

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 ISO 13857.

Special versions

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

EZD 25/4 D - Wiring diagram

EZD 25/4 D for ventilation (right-hand operation)

Right-hand rotation: EZD 25/4 D with air drawn across the motor



EZD 25/4 D for air extraction (left-hand operation, standard)

Right-hand rotation: EZD 25/4 D with air blown across the motor



EZD 25/4 D with VE shutter, RKP and MS 8, MS 8 P servomotor

* Limit switch only for MS 8 P



EZD 25/4 D with VE shutter, RKP and ST, STU, STS speed controller

* Limit switch only for MS 8 P



Predecessor - successor

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