Series 23 Features and advantages: In combination with BKS door furniture licensed to EN 179 + EN 1125. Fire rated to DIN 18250 + DIN 4102 + DIN EN 1634. Available with anti-panic functions: ‚¬â€œ B - switch over function ‚¬â€œ C - coercive locking function ‚¬â€œ D - passage function ‚¬â€œ E - latch lever function For single and double leaf door systems. Through-fixing of standard door fittings such as rosettes or short backplate sets possible. Fully enclosed lock case ‚¬â€œ dirt or other foreign bodies cannot obstruct the easy operation of the lock. Various forend types. Application: Fire rated doors as emergency exits or anti-panic doors. Technical description: Profile cylinder lock, with or without latch lever function depending on the variant,also for Swiss-type round cylinder as an option. Fully enclosed, galvanised lock case. Steel deadbolt, galvanised; 20 mm single throw; with return spring. Technical data: Follower: steel; 9 mm square Centres: 72 mm Backset: 65, 80 and 100 mm Rear backset: 32,5 mm Various designs: Series 23 with top locking Series 23 ‚¬â€œ espagnolette lock ‚¬â€œ For the automatic locking of the inactive leaf of double leaf doors. ‚¬â€œ With E-opener as an option.