Main switch for construction industry switchgears.

   AC operating voltage: Ue = 690V
   DC operating voltage: Uedc = 500V
   AC insulation voltage: Ui = 750V
   Rated current: In = 100, 175, 250, 400A
   Short-circuit strength for Ue=400V: 18 to 37kA
   Number of poles: 3P
   Accessories: SHT shunt trips, AX/AL contacts.