Banking
  equipment

 - customer cabinets
 - deposit cells
  
  Stack racks

 - archival and
warehouse racks
 - warehouse racks
 - europallet racks
  
  Document
  cabinets

 - archive cabinets
 - accounting cabinets
   - light accountin
cabinets
   - heavy accounting
cabinets
 - customer cabinets
 - card cabinets
  
  Clothes cabinets
  
  Gun
safes/cabinets
  
  Safes

 - cabinet safes
 - office safes
 - built-in safes
 - furniture safes
  
  Metallic doors

 - anti-break-in doors
 - fire-resistant doors

   What crack-resistant level would be enough for a safe to have? How do the insurance money depend on the type of a safe?

   There are some criterias that can help when choosing crack-resistant level that could be appropriate in the specified conditions. There is the established system of insurance money in Europe. It means that depending on the type of the safe you can receive more or less money from the insurance company. And it says that more you invest into your safe more you will receive in the case you have been robbed.
You can take a look at the base insurance sum of main European insurance companies in the annualy published reference book of European committie on safe certification. It is called "European Safe Rating List".