The pull mechanism of these 2 way switches is replaced by a specially adapted mechanism. As the trolley itself operates the switch, this kind of switches does not need the operator intervention.

Switch without operation (... .../003)

Is used when the load is always displaced in the direction of the indincated arrows (see figure).

Codification .../003. Ex. 240.520/003

Spring operated switch (... .../007)

The load carrying direction tongue of this two way switch is held in a well determinated position by a spring mechanism. The spring mechanism is easy o choose between the running a or b (see figure).

Codification .../007. Ex. 240.520/007