> ## Documentation Index
> Fetch the complete documentation index at: https://installerguides.lunarenergy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MSA Controller Installation

<Note>
  MSA Controller requires [ConnecDER IslanDER MSA](https://connectder.com/products/islandder/) to be installed to function as a microgrid interconnect device.
</Note>

## Installing the MSA Controller

<Steps>
  <Step title="Remove the cover">
    Lift on the 4 flex tabs located on the right and left sides of the cover and pull up.

    <img src="https://mintcdn.com/lunarenergy/9SpEOi1RhVKSku07/images/msa/remove-cover.png?fit=max&auto=format&n=9SpEOi1RhVKSku07&q=85&s=b21d33466c2552ef6dad544bdc82986d" width="400" data-path="images/msa/remove-cover.png" />
  </Step>

  <Step title="Mount the Enclosure">
    Mount the MSA-Controller enclosure with 2x fasteners.

    <img src="https://mintcdn.com/lunarenergy/9SpEOi1RhVKSku07/images/msa/mount-enclosure.png?fit=max&auto=format&n=9SpEOi1RhVKSku07&q=85&s=2aab906f3161d551e507de489034892b" width="400" data-path="images/msa/mount-enclosure.png" />
  </Step>

  <Step title="Attach the MSA Cable">
    <img src="https://mintcdn.com/lunarenergy/9SpEOi1RhVKSku07/images/msa/attach-cable-combined.png?fit=max&auto=format&n=9SpEOi1RhVKSku07&q=85&s=2a192e764597b6ebc19eb6b20d55b0de" width="500" data-path="images/msa/attach-cable-combined.png" />

    <Note>
      Make sure to fully twist the MSA locking collar clockwise until it **clicks** into the final locked position. Verify it is fully seated past the initial alignment position.
    </Note>
  </Step>

  <Step title="Prepare conduit entry">
    Remove conduit plug from the knockout for the desired inverter wiring entry point.

    **Right knockout:** 3/4", **Left knockout:** 1/2"

    <img src="https://mintcdn.com/lunarenergy/9SpEOi1RhVKSku07/images/msa/conduit-knockouts.png?fit=max&auto=format&n=9SpEOi1RhVKSku07&q=85&s=a692354d7ab26800bcf960e521b7484d" width="350" data-path="images/msa/conduit-knockouts.png" />
  </Step>

  <Step title="Land Wires">
    Install the cable gland in the knockout and route inverter communication wires inside the enclosure.

    <img src="https://mintcdn.com/lunarenergy/9SpEOi1RhVKSku07/images/msa/inverter-comm-wiring.png?fit=max&auto=format&n=9SpEOi1RhVKSku07&q=85&s=98800d291bbdbaed7a5b3c6f0f463712" width="500" data-path="images/msa/inverter-comm-wiring.png" />
  </Step>

  <Step title="Reattach wiring cover" />
</Steps>

## Before You Leave

<Tip>
  Connect the MSA cable to the MSA Controller while leaving the MSA unplugged from the meter socket in a waterproof bag. Commissioning can be completed for all tests except for the Backup Test. The system will operate in on-grid mode. Leave system **ON** when leaving.
</Tip>