IRB 500 F3 EC

  • Insulated duct fan with circular connections.
  • Equipped with 50 mm of thermal and acoustic insulation makes it ideal for handling cold air.
  • Designed for high pressure and long duct runs.
  • The design prioritise functionality, durability and longevity.
  • Impeller with backward curved blades.
  • The external rotor motor has maintenance-free sealed ball-bearings and is very energy efficient.
  • Integrated motor protection.
  • Junction box has enclosure class IP 54.
  • Speed controlling can be done with the built-in potentiometer, 0-10 V alt. external control.
  • The housing is manufactured from galvanized sheet steel.
  • Duct connections are equipped with rubber seals.
  • The fan is intended to be installed in a duct system.
  • A duct connected fan can be installed outside or in damp environments.

Technical Data

IRB 500 F3 EC
7890042
Parameter Value Unit
Voltage 400 V
Phase 3 ~
Frequency 50/60 Hz
Power 2916 W
Current 4.47 A
Speed 1620 r.p.m.
Max. temperature of transported air 60 °C
Sound pressure level at 3 m 66 dB(A)
Weight 111.6 kg
Enclosure class 54 IP
Insulation class, motor F
Duct connection 500 mm
Max. flow @ 0Pa 2896 l/s
Max. pressure 1206 Pa
Voltage range 380-480 V

Product information sheet

Parameter Value Unit
(a) Manufacturer Östberg -
(b) Model code IRB 500 F3 EC -
(c) Declared type NRVU / UVU -
(d) Type of drive Variable speed drive -
(e) Type of HRS N/A -
(f) Thermal efficiency N/A %
(g) Nominal flow rate 1.654 m3/s
(h) Effective power input 2.821 kW
(i) SFP int N/A W/(m3/s)
(j) Face velocity 8.4 m/s
(k) Nominal external pressure 911 Pa
(l) Internal pressure drop N/A Pa
(n) Static efficiency 62.6 %
(o) External (and internal) leakage rate 0.2 %
(p) Filter classification N/A -
(q) Visual filter warning N/A -
(r) Sound power level 73 dB LwA
(s) Disassembly instructions www.ostberg.com -

Accessories

Mechanical accessories