Removing a DC Power Supply

To remove a DC power supply unit (PSU) from a switch, follow these steps:

  1. De-energize the DC circuit.
    Warning

    Warning

    Removing the DC wiring harness from your facility's DC source voltage must be performed by a qualified, licensed electrician.
  2. Disconnect the DC power cables as follows:
    1. Slide the cover off the terminal block.
    2. Loosen the screws that secure the cable terminals to the terminal block.
    3. Slide the wires out from under the captive washers.
  3. Disconnect the ground wire as follows:
    1. Remove the screw that secures the ground wire to the power supply.
    2. Move the wire away from the power supply.
  4. Push the latching tab to the left as you pull outward on the handle to disengage the power supply internal connectors.
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    Removing a DC Power Supply
  5. Carefully slide the power supply the rest of the way out of the switch.
121248-05 Rev. AN