Right or left – our reversing combinations allow to operate a motor in two directions of rotation. These combinations consist of two standard contactors on which two phases are interchanged.

If you assembly the combinations by yourself, you can easily, quickly and safely implement the wiring and the mechanical locking of the contactors by using the corresponding wiring and locking blocks from the SIRIUS modular system. The starting characteristics correspond to those of a direct-on-line starter.

In combination with the relevant protective devices, space-saving and compact unfused branches can also be installed for reversing combinations.

http://www.siemens.com/sirius

or in the "Configuring SIRIUS" manual.