General
Number of poles	4
Voltage protection level L-N	1.5
Voltage protection level L-PE	1.5
Voltage protection level N-PE	1.5
Degree of protection (IP)	IP20
System configuration DC
System configuration IT
System configuration TN
System configuration TN-C
System configuration TN-C-S
System configuration TN-S
System configuration TT
System configuration other
Remote signalling
Integrated backup fuse
Energy-coordinated protection effect with regard to the terminal equipment

Combined arrester type 1+2+3 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 with external lightning protection (BSK III/IV) and to meet the requirements for lightning and surge protection of the electrical system according to the lightning protection standard DIN VDE 0185-305 Part 1-4.