CP 1 is an insulated extension clamp with 3 wire terminations and enables a V-connection even if the SPD is not equipped with double clamps.
CP 1 can be assembled on the SPD's PE terminal as well as on phase or neutral terminals.
CP2 to CP8 are fork-type busbars with 2 up to 8 connection points. Typical application: to provide a common PE connection for
In TT system applications these busbars can also be used to provide a common neutral point connection to N-PE SPDs type I 12, I 52 and I 100.