Safety lock, the secure locking element for e.g. fuses. After the fuse has been switched off, the clip block can be fixed with an insulated electrician's screwdriver (blade max. 4 mm), the locking element is secured with a padlock (Cimco article no.: 18 2612) or a multi-locking clip (Cimco article no.: 18 2616) to prevent it from being switched on again.