UNI saddle clamp according to EN 62561-1, for integrating the mounting systems, e.g. of PV installations in the functional equipotential bonding/functional earthing (black conductor possible) and lightning protection equipotential bonding according to IEC/EN 62305-3. The StSt contact plate (intermediate plate) allows different conductor materials (Cu, Al, St/tZn and StSt) to be connected to the normal mounting systems, e.g. to aluminium, without risk of contact corrosion. Type with hammer-head bolt M8, self-locking nut and double clamp, e.g. for the feed-through wiring of the profiles.