Computational program Sichr

Computational program Sichr enables designing and check of line networks TN-C , TN-C-S and IT networks at all usual low-voltage levels. It contains database of protection and switching devices, residual current breakers and surge voltage arresters of OEZ production and open database of transformers and power cables.


Properties of version 20.06

  • Added 3VA MCCB circuit breakers and switch disconnectors also with residual current devices
  • Added function into the menu for repeating last action
  • Added value 2/3 Zs for revision technicians (Zs(m) = 2/3 Zs according to ČSN 33 2000-6 ed.2 / IEC 60364-6:2016, pt. D.
  • Added new option for installation of singe core cables on air – Bunches in one layer touching

The program works in the Windows XP and higher.

Registration code

Registration code for the version 20.00 is  Sichr

Technical support

Computational program Sichr
Tel.: +420 465 672 394