Changeable lock with dead bolt for safes CEN 0-II. Approx. 280,000 theoretical variations. Standard footprint. User-friendly change from the front utilising a change activator i.e. without having to dismantle the door covering or the openings in the door interior. Change can however, also be initiated via a slide unit at the back of the lock. The lock can be supplied in user or works locking mode.