Load power supplies are mounted on the DIN rail immediately to the left of the CPU/IM 361/IM 153 (Slot 1).

The connection to the CPU/IM 361/IM 153 is made via a power connector included in the scope of supply.

Located on the front panel of the modules are:

• Output voltage indicator:
  An LED displays the 24 V DC output voltage.
• Line voltage selector switch:
  A switch with a protective cover allows you to select a line input voltage of either 120 V AC or 230 V AC.
• On/off switch for 24 V DC output voltage;

Also on the front panel, protected by a cover, are:

• Terminals:
  These terminals can be used to connect cables for the network input voltages, the output voltage and the grounding conductor.

The load power supplies can also be mounted on a 35 mm standard rail (EN 50 022), for which the following mounting adapters are required:

• 1 adapter each for PS 307-1B, PS 307-1E
• 2 adapters for PS 307-1K