The power-feed unit supplies power to the devices on the mounting rail bus. The group error contact of the devices can be optionally read out on the bus and reported to the external controller by means of an internal status relay. It is possible to connect power supply units to the supply. Available in Basic and Pro versions.

This page is ACT20M, Supply Module, Screw Connection, part number 1282490000.
You can find the detail information about specifications and dimensions on part number 1282490000.