Knob cylinder indicating „occupied“ locking movement 90° 397/497

  • for interior and exterior use
  • together with respective DIN rim locks in the sanitary area e.g. toilets
  • without key
  • with item no. 397/497 it is possible to adjust the slot with a flat object for 90°
  • For installation of the cylinder a needle has to be inserted into one of the drill holes (Ø 1,5 mm)

Knob cylinder indicating „occupied“ locking movement 90° 397/497


  • cylinders: nickel-plated brass (finish NI)
  • limited looking movement 90°


  • 397: standard length (C) 53 mm
  • 497: standard length (C) 61 mm
  • standard knob: Form Z, aluminium, anodized, nickel pearl finish; (see Locking systems - Complete Assortment - Accessories - “knob shapes and finishes”)
  • salt-water resistance (finish CR, special pinning)
  • finishes: CR, MS, AUPO, BROA, AUMA (see Infobar - Special features for cylinders - "Cylinder finishes")


Profile double cylinder

For the protection of life and material assets ABUS provides high value cylinders for respective mortise locks according to DIN. Due to our 14 mm core diameter it is possible to realize complex locking systems for inner and outdoor areas. We manufacture according to DIN EN 1303, DIN 18252 and are ISO 9001:2008 certified. Subsequent you will find more detailed information on profile double cylinders 310 and 410, knob ...
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