Semi-centrifugal duct fan

ERM 28

No longer available for delivery
Article number: 0080.0206ALT
Manufacturer: MAICO
ERM model series
Application examples: Commercial premises, Canteen, Air extraction system, Workshop, Workplace air extraction system
ERM 28 IM0009885.PNG ERM model series

Characteristic curve

ERM 28 - Characteristic curve

Dimensioned drawing

ERM 28 - Dimensioned drawing [mm]

Technical data

ERM 28 - Technical data

Article ERM 28
Speed controllable
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz
Mains cable 3 / 1,5 mm²
Housing material Synthetic material, shock-resistant
Colour Pearl white, similar to RAL 1013
Packing unit 1 piece
Article number 0080.0206ALT


ERM 28 - Accessories

General accessories

Product type Name Art. No. Price*(EUR) Action
5-step switch for TRE...S -2/ TR...S-2 5-step transformers ESS 20 0157.0749 on request
  • On the notes

Product description


ERM 28

short description

ERM model series

Product description


  • Reduced space requirement due to compact dimensions.
  • IP 54 degree of protection for horizontal installation positions or when the airstream direction is downwards.
  • Inlet and outlet side connection couplings for direct installation in ventilation ducts.
  • Semi-centrifugal impeller, favourable flow technology.
  • Inflow direction equals outflow direction. Thus resulting in simple installation.
  • Pearl white, similar to RAL 1013.

Air flow direction

  • Airstream and rotational directions are indicated by arrows marked on the fan housing


  • ERM 15: Shaded-pole motor
  • ERM 18: Capacitor motor
  • Speed controllable.
  • Operating capacitor in the terminal box is ready to be connected.
  • Thermal overload protection as a standard feature.
  • Potential-free terminal connections, which must be connected to e.g. an MVE 10 protective motor switch or the control circuit of a contactor.
  • Robust motor with ball bearings, maintenance-free.

Mounting instructions

  • Can be fitted in any position.
  • Use ELM flexible cuffs to prevent transfer of vibrations onto the duct system.

Electrical connection

  • Externally fitted terminal box with cable guide bushes.

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 for fans with free inlet or free outlet. To do this, fit a SGM protective grille.

Special versions

  • The following special versions are available on request, at an extra cost:
    • Special voltages and frequencies.
    • PTC thermistor on terminals.
  • Information on operation at temperatures occasionally below -20°C available upon request.
  • Feasibility must be checked in each case.

Table of contents

Wiring diagram

ERM 28 - Wiring diagram

ERM.. with on and off switch

S1 - Off switch (to be supplied by the customer)

S2 - On switch (to be supplied by the customer)

K1 - Contactor US 16 T (to be supplied by the customer)

Predecessor - successor

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