You can use the PS 307 or PS 305 load power supplies as the power supply module for the ET 200M. You can select different input voltages and output currents (120/230 V AC with 2 A, 5 A or 10 A or 24 to 110 V DC with 2 A) depending on the application.

With a redundant ET 200M configuration, it is also recommendable to have a redundant 24 V DC supply, e.g. with two PS 307 / PS 305 load power supplies.