Combined arrester type 1+2 tested, with function display, for tool-free installation on the
40mm busbar system with prepared voltage tap. The voltage tap
(L and N) for RfZ and APZ according to the application rule VDE-AR-N 4100 can
be retrofitted at any time using a set (optional).
Application: Buildings without external lightning protection and to meet the requirements for
surge protection of the electrical system according to DIN VDE 0100-443