H. Östberg
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  6. RKB 500x250 E1

RKB 500x250 E1 Updated: 2025-10-03

7470048 - RKB 500x250 E1 man tc
Archived product 		7470052 - RKB 500x250 E1 aut tc

This product is compliant with the Lot 6 directive (1253/2014) and approved for use in the EU and EFTA, also after 2018.

  • Duct fan with rectangular connections.
  • Proven performance and reliability.
  • High capacity and very good efficiency.
  • Operational in both 50 and 60 Hz.
  • Impeller with backward curved blades.
  • The external rotor motor has maintenance-free sealed ball-bearings.
  • Integrated motor protection.
  • Junction box has enclosure class IP 54.
  • For speed control a transformer or electric speed controller can be connected.
  • Fan housing is manufactured from galvanized sheet steel.
  • Swing-out design to simplify maintenance and cleaning of the impeller.
  • The fan is intended to be installed in a duct system.
  • A duct connected fan can be installed outside or in damp environments.
  • Easy installation in any position.
  • This product cannot be speed controlled below 165 V.