For the installation on limited longitudinal space where high
density wiring is needed together with reliable insulation,
special feed-through two/three level terminal blocks are
available. The three level terminal blocks are suitable for
circuits which are to be used and connected with specific
equipment, as for example proximity sensors. In fact with the
combined use of TLS.2 and TLD.2 terminal block, both the
feeding and the signal carrying conductors of the proximity
sensors can be economically and efficiently connected.
Particularly in the TLS.2 terminal block, the intermediate
and lower levels can be used to feed the sensors in d.c.; the
feeding is distributed on the adjoining elements of the terminal
board by means of a special LOCK connection system